Will a Bad Fuel Pump Cause System Lean Issue?

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HumbleMechanic

HumbleMechanic

7 жыл бұрын

Liz asks if a bad or failing fuel pump can cause a check engine light and system too lean issue without the car running bad. A bad fuel pump may mean too little fuel, cause a no start, or more.
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Пікірлер: 213
@labradormcgraw2409
@labradormcgraw2409 7 жыл бұрын
You always get so much information from The Humble Mechanic. Each and every question is covered in depth, with every conceivable probability covered. All presented with style, charisma and a bad-ass beard - unbeatable!
@dogodivaamorfati7190
@dogodivaamorfati7190 6 жыл бұрын
Great info thank you! People like me need this advice. I lost my dad a year ago he was my best friend and a great mechanic. I never worried about any car I ever had. Now without dad it is so difficult. It isn't easy to find a humble mechanic. I have been taken advantage of a couple of times since dad has been gone. Thank you for helping us.
@sollykhan2385
@sollykhan2385 Жыл бұрын
Sorry for your sad loss, hope you're coping, take care, and be Blessed 😇
@danieldirzuweit7878
@danieldirzuweit7878 7 жыл бұрын
Wow, this is an incredibly helpful answer to her question. The comprehensive technical detail and explanation of business practice are spot on. Keep up the great work!
@samwisegamgie8163
@samwisegamgie8163 7 жыл бұрын
as a tech I feel it a part of my job to inform the customer exactly what is wrong and walk them thru how I came to that diagnosis. after all it is their money.
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+Samuel Harper BOOM!!!
@CubasAutomotive
@CubasAutomotive 7 жыл бұрын
Samuel Harper I love to walk the customer through what the problem is and answer questions, especially I because I try to prove in various ways how I got to my diagnosis. It's just those customers that harass and go on about what they should do or repeat the same questions over & over that erk me. Or those customers that like to waste a person's time, grrr.... all depends on the location sometimes.
@Trex6767
@Trex6767 7 жыл бұрын
Samuel Harper what kills me is when my fellow technicians just say "part is inop, replace failed part". I had a Camry with bad abs module that felt it needed to be chatty on the can bus causing the body control module and the cluster to decide not to work. So in the story I explained what can bus is in simple terms, why the issue was happening, and how I came to it and customers LOVE IT and have left surveys saying they feel educated when I work on their car
@Ashroyer86
@Ashroyer86 6 жыл бұрын
SaturnSam I find it exciting to show what the problem is, at least when I'm 100% sure. Sometimes they look at me like, OKAY.......
@skarademirlidag
@skarademirlidag 5 жыл бұрын
@@HumbleMechanic wish you many customers and hi to USA. I live in Turkey as a mechanic shop owner. I should ask your opinion. I have fuel cut problem with my M52b28 car I will send via email or Facebook
@klwthe3rd
@klwthe3rd 7 жыл бұрын
See this is the type of expertise that makes Charles so worthwhile. He always remains professional in his opinions and isnt shy about telling you what you do when talking to a service writer or tech. Since he has been on both sides he can give you not only the best advice by also the path to follow to get the results you deserve to get as a paying customer. I feel this persons pain because more and more dealerships are not providing a detail explaination of what diagnostics they performed on your car. They just tell you what is broke but dont want to tell you how they came up with that results. All they want to be are parts changers. That is the primary reason I started seeking out information and Technicians like Charles on KZfaq. Im soooo tired of having my car replaced with expensive parts to later find out that said replaced part was not REALLY the problem but this other part is. Good video
@theadventuresofjavier8698
@theadventuresofjavier8698 7 жыл бұрын
always look forward to you vids Charles.as always excellent content.cheers
@StanleyKubick1
@StanleyKubick1 7 жыл бұрын
I really like your calm, measured narration style. Subbed!
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+Ace Futura thanks so much!
@Lizbellzee
@Lizbellzee 7 жыл бұрын
Thanks Charles! I think you just assured me that going back and demanding more info is the right thing to do! I paid $135, I deserve a little more than what I got.
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+Lizbell Guerrero you're very welcome Liz! Let me know how it goes.
@Travelingman-1980
@Travelingman-1980 7 жыл бұрын
Lizbell Guerrero : Yeah stick up them Liz, and don't backdown. As sexiest as this may sound, being a female in this instance is probably not helping your cause because, they'll assume you know nothing about cars, hit them between the eyes and rattle them by what you do know. Hope it goes well for you, regards from Australia.
@whitt87
@whitt87 3 жыл бұрын
Lizbell what was the outcome and fix?
@Lizbellzee
@Lizbellzee 3 жыл бұрын
@@whitt87 It was the fuel pump. I was able to convince the tech to give me more information and I had low fuel pressure. Since the new fuel pump was $300 + and I was still a little skeptical on the info the dealer gave me I bought a used one from a local dismantler for $65. It worked! Had the car until last year with no more issues.
@sollykhan2385
@sollykhan2385 Жыл бұрын
That was some series Pizza Money doled out, to the 'Jokers' hope you did get some recompense ? take care 🙂
@turbochargedcoupe
@turbochargedcoupe 7 жыл бұрын
Thanks Charles. Appreciate that!
@wyattoneable
@wyattoneable 7 жыл бұрын
Great stuff here Charles.
@metalmauler
@metalmauler 7 жыл бұрын
no buckshot straight up good advice.good job sir.
@samuelod3711
@samuelod3711 4 жыл бұрын
wonderful explanation.
@redheadmetalhead247
@redheadmetalhead247 7 жыл бұрын
0:55 *"Still D.R.E." starts playing*
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
LOL, I love that album!
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
LOL, serious I had to play that song after seeing your comment. HAHAH
@redheadmetalhead247
@redheadmetalhead247 7 жыл бұрын
HumbleMechanic 2 replies from Charles on one comment??! I MADE IT!! *"Still D.R.E." plays again*
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+Redhead Metalhead hahaha. I played the censored one. Not as good. Off to find Chronic 2001 disc lol
@roynorris5625
@roynorris5625 7 жыл бұрын
Hello Charles. You videos are always great. Keep up the great work. What causes over fueling? My car is injecting too much petroleum resulting in petrol mixing with oil. Getting oil pressure and check engine. Kindly talk about over fueling in Twin charged VW Engine
@user-pd3rr2hu7h
@user-pd3rr2hu7h 11 ай бұрын
mr humble my fuel gauge on the panel goes full and then dropes to half a tank does that mean i need a fuel pump and i keep putting gas left and right so i dont run out help me if you can thanks
@E150GT
@E150GT 7 жыл бұрын
one of the new fuel pumps in my truck is bad and it was giving me a whole mess of codes including lean and map codes
@niloticone7661
@niloticone7661 6 жыл бұрын
Great video 👍
@HumbleMechanic
@HumbleMechanic 6 жыл бұрын
Thank you
@DrivingIntelligence
@DrivingIntelligence 6 жыл бұрын
Hello, and thanks for the video. I wonder if I can get some advice here? I have a 2002 F150 with the 5.4 engine. I have been chasing an intermittent P0171 for some time. I've smoke tested the truck and ensured all vacuum leaks fixed, replaced the DPFE sensor, cleaned the MAF. Drivability of the truck is amazing, however I have noticed the following: At idle, fuel trims go sky high. Combined approach over 29 at times at idle (while driving down the road, the fuel trims drop significantly to about 16 combined). Truck cold starts without a hitch every time, but hot starts take a few turns of the key. Running real time diagnostics, I see the timing pull way back on hills to around 10 degrees advance (maybe detecting knock? flat road timing is 35+), and finally, KOEO fuel pressure at 32psi, and engine running 25 (@ idle). Oh, and the O2s are cycling as they should. What am I missing?!
@byronarriola4304
@byronarriola4304 3 жыл бұрын
I've had the check engine light come on and when I read the code at the auto parts place they said it was the fuel cap. I replaced it with several ones from the scrap yard and that didn't work, I bought a $40 fuel cap from the dealer and that didn't work. Turns out it was the fuel pump cover at the fuel tank. The big black threaded ring that locks the lid over the fuel pump 😁 I have a 00 Passat.
@jefftee448
@jefftee448 2 жыл бұрын
I would take the advice from a "parts store" employee with a grain of salt. They wouldnt be working in parts if they really knew anything about cars,
@southern_merican
@southern_merican 2 жыл бұрын
Thanks man, 👍
@BabyG112
@BabyG112 7 жыл бұрын
hello! whats the best way to reach you? i have a question for my vr6 turbo my walbro 255 fuel pump primes on and off and it whines and when it stops it the car wont start and when i drive it it will shut off at random i dont know if the fuel pump is shot or im getting a shortage
@suggesttwo
@suggesttwo 7 жыл бұрын
change the fuel filter and put a strong fuel injection cleaner in the tank to clean out the entire fuel system.
@suggesttwo
@suggesttwo 7 жыл бұрын
clean flow 994/993. 200ml / 8oz. for deisel but works in gasers too.
@Blaylock1988
@Blaylock1988 7 жыл бұрын
Could some sort of failure of the fuel pump cause it to not prime when opening the door or turning the ignition, yet still run fine? I've ruled out fuses and driver door electronics as the cause.
@moneyteam3436
@moneyteam3436 5 жыл бұрын
Love this guy
@HumbleMechanic
@HumbleMechanic 5 жыл бұрын
Thank you.
@garypeters2831
@garypeters2831 6 жыл бұрын
Awesome show
@HumbleMechanic
@HumbleMechanic 6 жыл бұрын
Thank you. 💙
@AP9311
@AP9311 7 жыл бұрын
hey Charles, Paul Danner did that on Lincoln Navigator on yt. he did bunch of testing, a few lean codes etc. he did test the electrical surge and amount of power going. it turned out the pump was failing. As it was putting out 6,000 rpm 6.2 amps. new pump put in, 8400 rpm and pressure was up and stayed there. so in Liz's case. check the electrical and amount of power by using Pico. so you can know for sure?
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+Josh Benney I heart Paul Danner. Lol. There are several ways to do a thorough job on diag. The amp draw test is one that's great. I usually had luck with output tests and pressures on these. But for some reason the Beetle is squirrelly. Imagine that. Lol
@betavirus11
@betavirus11 7 жыл бұрын
I have a lean code..it only pops up when the temp outside is around 58 to 61 degrees when the weather is warm the code goes away....could it honestly be the fuel pump? also i have a small evap leak. as well. thanks.
@anupsolanki3854
@anupsolanki3854 6 жыл бұрын
Sir I have 2007 Hyundai accent crdi creating problems like stall in running,some time it's crank but won't start. Diagnosis and code come up is p340 so what to do next.please give some guidelines.
@TheMatrixcube
@TheMatrixcube 6 жыл бұрын
love the videos but how exacly does a bad valvecovergasket create a system lean? the air cant enter the engine or does it?
@EnriqueReyesJrREALTOR
@EnriqueReyesJrREALTOR Жыл бұрын
I bought a 2005 VW Touareg (4.2, V8), 7:01 I took it in for a smog check, (the check engine light went on while I was on my way to the smog shop) the tech at the smog shop told me his diagnostic scanner told him that all four catalytic converters, & all four oxygen sensors were bad. I took the car home, went online paid for the ALLDATA manual. I tested the oxygen sensors with a volt meter… I found a crack on a plastic vacuum line. The line was not available from the dealer. I cut the vacuum line, spiced the line (I think it was an exterior diameter of 13mm) purchased a 4” length or vacuum hose from NAPA Auto Parts). All codes were off, & it passed smog.
@jaydehart3924
@jaydehart3924 5 жыл бұрын
Hey Charles I have a mk4 1.8t loss throttle response rpm dropped as if I was engine braking didn’t stall or loose and electrical down shifted and blipped the gas pedal a few times and regained throttle control no cel or codes present can this be a fueling issue? TPS?
@jonathandeville3073
@jonathandeville3073 3 жыл бұрын
Lean conditions are, too much unaccounted air that the engine cannot account for since it is going passed the mass airflow sensor. a stuck injector, a faulty pressure regulator valve, a weak or clogged fuel pump, or fuel filter. Well, how does the engine know it is running lean to throw these codes you may ask? Primary and secondary 02 sensors. Primary 02 sensors are the control freaks behind the mass airflow sensors that say "Woah, too much gas, let's tame that." or "Hey bub, you have literally no gas coming out of you what's the deal?" Also, a computer may think that a misfire is cause of a lean or rich condition, and that code may be set also. For instance, I had plug #1 on my mk3 aba undone while the wife cranked, I didn't realize that the starter blew off a piece of it's housing, but when I did correct that, the engine started without cylinder 1, as I hurriedly placed the boot on the plug and it began to run fine, a simple boot unplug can set a misfire/lean condition code. As a good rule of thumb, I look at codes and look at the problem, then think around the problem too.
@marcusnaval5376
@marcusnaval5376 6 жыл бұрын
Is it the same as for a 98 A4 quattro 1.8t and will this cause misfire symptoms? Thanks
@CraigE415
@CraigE415 6 жыл бұрын
Related question but not about a car, I'm having issues with a motorcycle and a constant flow of fuel from the fuel pump. So my question is... when there is no power to fuel pump is fuel still meant to flow through (but not at the same volume as when power is on)?
@dnfwme
@dnfwme 4 жыл бұрын
Hi I have 2006 230 sport and it has been very reliable car. I have all of its scheduled maintenance. Recently it started giving p2187 and p2189 codes. No other code and rough idling . On increased speeds it runs normal.
@darrennewell4
@darrennewell4 Күн бұрын
Did you find what was wrong with it?
@jeremywestwood3769
@jeremywestwood3769 6 жыл бұрын
Is it normal that fuel pump doesnt prime? But car runs. Fuel gauge on the dash acts weird just went to gas station before gas lights up instead it adds up fuel my gas light pops up. My fuel pressure reg is new. How can i rule out if fuel pump or fuel sender (passenger side) is the problem? Both parts are pricey so i need to know which part is the prob. I dont know if my fuel pump is prob cause car runs means fuel pump is pumping but doesnt prime. Correct me if im wrong if i use fuel pressure test its only the fuel pressure regulator il be testing not the fuel pump or the sender.thank you.
@danielgarza8031
@danielgarza8031 6 жыл бұрын
i have p0171 and p0174, on a chevy malibu maxx 05, 3.5L my fuel pump pressure reading is 22 PSI. what's the normal pressure for this car.
@mentaldan666
@mentaldan666 7 жыл бұрын
I have nothing relevant to the video to say. Just wanted to say we love and appreciate ya. Haha
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
Thanks dude!!!! :)
@cfmechanic
@cfmechanic 6 жыл бұрын
HumbleMechanic very good video. My sniper efi fuel pump went from a normal buzzing sound to a squeaking sound does this indicate a possible failure. Car will not idle and also dies with foot on gas pedal
@bac4998
@bac4998 6 жыл бұрын
Same here.
@cfmechanic
@cfmechanic 6 жыл бұрын
BAC I found the power wire a oil loose on the pump. I snugged up the connector and now all is good. Have not changed the pump or had any more strange noises hope this helps
@The_realArcher
@The_realArcher 3 жыл бұрын
I have a 07 mazda 3 2.0 liter. replaced may parts including the fuel pump. I found out he pump is rated at 29 GPH but didnt think anything of it. Ever since I replaced it , at WOT the car revs and hardly accelerates. Auto trans. However I can "roll into the gas slowly" but you still notice a lack of power/acceleration. no CEL however it did show a system lean for a few days. Can this be caused by low fuel pressure? Pumps on other sites and O reillys have pumps for 46GPH at least for my car. I have nofuel filter, its in the tank. Thank you for any info..
@danielsunday2958
@danielsunday2958 7 жыл бұрын
Hi Charles, many thanks for all the help. I've been getting this error code (P0171) very often recently. This usually occurs after the engine fails to idle but goes off except I throttle it a little. Whenever i brake, the engine goes off as I can't brake and throttle at the same time. The car stalled last night on my way home after a hard day's work and whenever I tried to start, it will fire up, idle poorly (@ about 200-300 RPM) and goes off the moment my leg touches the throttle. I had to tow it home. I suspect the fuel pump after watching this video. What do you think? Thanks in anticipation of your response.
@asdfqwerty271
@asdfqwerty271 5 жыл бұрын
Did you ever figure this out? My ram 1500 is doing the same thing
@hrishikeshkarale9928
@hrishikeshkarale9928 3 жыл бұрын
@HumbleMechanic I have a 08 passat wagon and the car loses power for a millisecond at abt 5500rpm. No check engine light. I read somewhere the the problem is the fuel filter and pump, is that really it?
@jayvee1411
@jayvee1411 4 жыл бұрын
Hey brother in have a 2012 cc 2.0 turbo gas I have a p2293 code with no start. Gonna replace low pressure fuel pump and control module. But I see alot of aftermarket pump without canister. Do you know if I need it or can I just drop pump in and do a inline fuel filter?
@sollykhan2385
@sollykhan2385 Жыл бұрын
The Title for this Platform is def a Misnomer, Charles YOU'RE the Best, we get the gist of your 'character display' to be non egotistic, or overly self aggrandizing, but hey C'mon Man, give yourself a small Pat on the Back, at least for the integrity of the best knowledge that can be put out for the ignorant/ clueless Masses , Be Blessed Man, Well done, and why is there only 204 comments, and only 145K views ? should have had 4 Billion, by Now!! 🙂😇😎👍
@virgocompany
@virgocompany 4 жыл бұрын
I have an 2001 chevy monte carlo ss im not sure if I have a fuel pump problem but my car studder or stalls when turning my gas hand is 3/4 full any ideas 💡
@nightmaremike1092
@nightmaremike1092 4 жыл бұрын
My brother crank no start on honda civic 2001 timing belt was on time. my question is. Are you supposed to hear the fuel pump working before you start the car ? Bc if thats the case i dont. Lol any recommendations
@mesmaayan
@mesmaayan 6 жыл бұрын
I get the P0171 on my Audi A4 2.0T. Have changed everything they have told me and nothing. Besides the fuel pump, could it be as simple as an old or dirty fuel filter? Someone told me what you said at the beginning. "A system lean can also be low fuel flow"
@kainhall
@kainhall 7 жыл бұрын
had a 3.8 v6 powered 1997 Buick le saber have a bad fuel pump you would fire it up, stick it in gear..... and it would "chug"......like you tried to start out in 3rd gear on a standard trans the pump had enough pressure to run great once it got past the first 30 seconds of chug chug chug.....
@abdallahmoussa1983
@abdallahmoussa1983 3 жыл бұрын
Hello bro. I have an mk7r stage 3, built engine, new stage 3 turbo. The dyno showing i am running lean. AFR is 14 on boost while it should be 12. I cannot figure out where is the problem? Can you advice me? No air leak after many inspections. New low pressure fuel pump and nee high pressure fuel pump. What could be the problem?
@SnwBrdFrvr
@SnwBrdFrvr 3 жыл бұрын
I have a 2006 pontiac vibe 1zzfe that the tach bounces between 600-900 constantly when at a stop. And occasionally even when driving it will feel like it's going to stall out and I get a o171 code. I did intake gasket and a new maf sensor. Cleaned the throttle body and out a new gasket in that. I'm wondering now if it might be a fuel pump. Cars only got 40 like thousand miles on it. Oh it also shakes quite it bit when it idles. Maybe that's motor mounts?
@michellemull3059
@michellemull3059 4 жыл бұрын
Please advise if I unblock my turbo salnoid I have p0243 and if I plug it in I have p0171 any advice, AUDI A4 B8 1.8 TSI
@jerbrent
@jerbrent 6 жыл бұрын
I have an o4 Passat, after I bought it had to have the head done. Tested block, which dealership told me was cracked. Replacing hoses, clamps ,water pump impeller, ect for a total of 1950.00. I asked about the headlights being low, he said the adjuster was broken. He said it would be 200 each for lights?? I bought a new set for $125, took him back to install, was $180.00 Labor. It started running ruff , He said he replaced 2 connectors, and 2 coils.Rewrapped the wiring harness to the coils. And replaced the air aspirator.Which I can't find on any parts list. That was $645.00. Within a couple of weeks the car was running worse than before. I replaced all 4 coils, I couldn't tell which ones he had changed. Ran perfect after that. I went to the shop, windows were white washed, and business gone. It started not starting on the first try. Some times I will turn key completely off, then it would start. I changed the in-line fuel filter. Some what better, but at times it still takes 4 key on, off, and on before it will start.Once it is running it sounds fine. I checked all the fuses, they tore it down to the block and put it back together, I shouldn't be having all theses problems. Starting is still taking as least 2 on and off. Now I am doing the brakes. Break Fault light came on. I now have close to 7,000.00 in a car I bought a year ago. Any idea what the starting problem might be? I am going to change the fuel pump. Car fax said it has been replaced once before. And I put nothing but premium gas in it..I was referred to the mechanic because he only did foreign cars. I had taken it to the guy that referred me, to have 2 keys programmed . Got it back, was told it had a coolant leak in the 3rd cylinder, and his Bill for two keys and a report was $225.00
@outlawperformanceandcustom229
@outlawperformanceandcustom229 6 жыл бұрын
Love your videos and they have helped me out so much but my car has me stupped....... I have a 1998 bmw 318i and I recently got 3 codes MAF performance code, IAC performance code and Sm Evap leak. The MAF is good and the IAC is new when I clear the codes it will be good for a couple days then they come back. I pulled the plugs and they were white same with the o2 also I already checked for vacuum leaks none found my readings on my scanner says my short term fuel at idle is -2 and long tetm is at 0......1/2 throttle short term is 10.5 long term is at 0 etc.....no matter what my short term never getts above 13.2 and long term does nothing......Completely stumped and help would be awsome.
@michellemull3059
@michellemull3059 4 жыл бұрын
I had 3 codes on my Audi A4 Sedan B8 1.8TSI p2293 and p0243 I did change the high pressure feul pump and turbo Solenoid all codes gone but now having new code P0171 any advice the car drive but not 100% full power any advice please
@scottb7835
@scottb7835 7 жыл бұрын
Help! I keep getting a P1135 heater circuit code. I put a new Toyota A/F sensor, new Denso oxygen sensor, new Walker cat, precat is stock, no exhaust leaks. While vehicle is moving, no codes. When sitting in traffic at a stoplight, P1135 appears. I clear it on the spot, and continue driving, the code comes back again when I stop moving. 2001 4runner, 200K. Any input appreciated!
@simonrawle7885
@simonrawle7885 7 жыл бұрын
for the intake leak a basic scan tool showing rpm and a tin of brake clean may be your friend . dont know who much money brake clean has saved me in the past
@BulliKid
@BulliKid 5 жыл бұрын
My fuel pumps buzzing like crazy is that normal? It’s a bigger walbro
@turbochargedcoupe
@turbochargedcoupe 7 жыл бұрын
Im having an awful fuel trim issue which is running slightly lean on idle and very rich on partial. Would it be a boost leak? As i have stalling issue when starting a warm engine.
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+turbochargedcoupe that is pretty much a classic boost leak. Or a bad MAF.
@zadivv
@zadivv 7 жыл бұрын
Hi humble mechanic I love your videos I have a question though I took my car to the mechanic right the dealership that has a code for low fuel pressure it's a P310B and the dealership just wanted to change that in tank fuel pump and the control module I have the check engine light comes on comes on for like 5 miles and then disappears for 300 miles and then comes back on and on and off on and off I didn't notice any problems while driving the car the car doesn't struggle to start however in the morning, like starts a little bit takes a little bit longer to start that one is already warmed up I think because my driveway is in a hat on a hill or something like that it takes like three to 4 seconds to start however it takes less to start one of the car is already warm and vice versa I don't know is it's not something that I can my cat describe but it starts right up that's what I know and I'm thinking it might be a clogged fuel filter however I have the VR six and basically the fuel filter and the pump are kind of the same price from the dealership so I'm wondering if I have the code what could it be I already changed all the sensors and they said that the sensors read correctly so if the sensors read correctly means that the control module is working fine and I just want to know what the heck is going on I will really really really appreciate if you respond
@canadapainter658
@canadapainter658 5 жыл бұрын
QUESTION; does a fuel-pump need to emerged in the fuel completely to get cooled or just the to make sure it sucks up gas 100% FUEL from the end of fuel-pump pipe.
@mikebyrd2979
@mikebyrd2979 6 жыл бұрын
Have a 1993 fprd bronco the fuel pump keeps running when key is on changed fuel regulator no difference wont crank
@iliketomoveit83
@iliketomoveit83 2 жыл бұрын
Please advise, I have 2014 touareg v8 fsi with 59000 km and I can't really know when I should replace my fuel filter I can't find any sure answer
@vunit8213
@vunit8213 Жыл бұрын
I can’t get anyone to answer this question so I figured I test my luck here, I’m having shaky engine in a 2013 sierra 2500HD with the 6.0 vortec… bought it from auction and it’s a flat bed that was used for hauling cattle…all that being said I did a basic tune up and a whole bunch of tests… new plugs, compression test, noid test (all injector plugs) , spark test (all 8 cylinders) fuel pressure test that registers a little shaky between 40-60psi but then stays at 60 psi even at wide open throttle, changed transmission fluid and filter, oil & filter, air filter, cleaned MAF, and tested to see if cats were clogged by removing top upstream 02 sensors but still ran like shit maybe a bit worse, and replaced one 02 sensor that probably didn’t need replaced….I noticed it hesitates the worst between 500-1000 rpm when I barely tap the accelerator it seems to want to bog out and almost sounds like it’s going to backfire in the exhaust and in the intake, when I give it gas in park the throttle is a bit delayed and when I hold rpm’s at a certain level and hold the gas pedal steadily the rpm’s will slowly start to fall even though I haven’t moved my foot at all…I also cleaned throttle body carbon buildup but with no results… I do here an slight rattle in the exhaust downstream after the cat. I’m not getting no white/ blue/ black smoke from exhaust and no bubbles in coolant and no milky buildup or sludge under oil fill cap or dipstick… my gut feeling from the day I brought it home was fuel pump or clogged exhaust however after doing the fuel pressure test I’m not confident about spending $500 on a new pump quite yet… I scanned it a few times and deleted old codes and the ones that keep coming back are the P300 and the 02 related codes only! Bank 1 and bank 2 sensor one and 2 so I’m thinking it’s most likely not the sensors but something causing the sensors to notify the ECM. All that being said I put my ear next to the fuel pump after taking off the cap and I can hear a mechanical ticking noise that speeds up as I accelerate and after i accelerate past a certain rpm it stops making the noise… I know certain components can fail under a load however if the gauge is reading 60 psi even under load does that mean it’s not the fuel pump? Any advice is appreciated and thank you for takthe time to read all this.
@massoudahmadi1127
@massoudahmadi1127 6 жыл бұрын
Hi I Have a Toyota highlander 2.7 engine, the recent problem that have with it, when I drive specially on the higher places it not claiming right and it's not speeding the speed is going lo Lower from 75 to 40 I change all the spark plugs but still have the same issue, and when I accelerate I hear king of clicking sound on the front passenger side, please let me know if I have a bad fuel pump or a bad transmission?
@HumbleMechanic
@HumbleMechanic 6 жыл бұрын
tough to say. Bad fuel pumps are usually dead. Any fault codes/check engine lights?
@Eurospec73
@Eurospec73 3 жыл бұрын
Hello Charles great video on this fuel pump, good point if people pay a big diagnostic fee they're entitled to know what was done and what wasn't. My question is I believe my fuel pump has been going for a while it takes sometimes 5 or 6 cranks to start and other times once it does start it wants to die unless I keep pressing on the gas pedal and I have to keep my foot on the gas pedal at 2000 RPMs for 2 minutes when I first start it and then gradually ease my foot off the gas pedal and then it levels out, if I don't it will die! Do you think that could be the fuel pump?
@Eurospec73
@Eurospec73 3 жыл бұрын
Oh yeah and I did do a fuel pump pressure test a couple months ago during the summer this is on my Corrado SLC VR6 12 valve and I got about 42 LB of pressure they say between 40 and 45 is normal does that sound about right for what I got?
@HumbleMechanic
@HumbleMechanic 3 жыл бұрын
It could. It could be other things too. Based on your reading the psi is good
@Eurospec73
@Eurospec73 3 жыл бұрын
@@HumbleMechanic good point I'm glad you brought that up about the PSI reading I did do a fuel pressure test and I got 45 PSI at the fuel rail. My only other guess is do you think somehow or another antifreeze could be getting mixed in with the oil causing an uneven air fuel ratio mixture?
@edgarcastrolee
@edgarcastrolee 4 жыл бұрын
I'm having a issue with p0300 and p0316 replaced coils and plugs and crank sensor it's a 2015 mustang EcoBoost
@7lampsministries471
@7lampsministries471 5 жыл бұрын
Hello Mr Charles My name is Mark, thank you for your youtube channel, i have a v6 Cayenne 2004 with a vw vr6 engine, i have a code that keeps coming up, which is p2177 and p2179. I have changed both fuel pumps Maf has been cleaned What else do you think it might be sir?
@Jimenez1904g
@Jimenez1904g 7 ай бұрын
What should a 1.8t 20th fuel pump be reading in ohms? Mine is reading 00.8
@jacobpina5789
@jacobpina5789 4 жыл бұрын
I have a 2002 bmw 325i with 212k miles!!! No check engine by the way previously had all 2 banks running very lean very low power codes were p1071 p1074 and fuel cut off I change the fuel pump and ignition coil runs like new
@artdogg50
@artdogg50 4 жыл бұрын
By fuel cut off you mean the car stopped running and wouldn't start?
@TheTaker31
@TheTaker31 5 жыл бұрын
Just replaced the whole fuel pump on my 98 mustang GT (V8) and it's loud. Has a loud humming/whining sound while car is running. Is this normal?
@webrtywebrtyhebrtyhebrty899
@webrtywebrtyhebrtyhebrty899 5 жыл бұрын
its absolutely normal. Because the pump is new you can now actually hear the pump working, when you idle. Over time when its getting older its getting less noisy.
@MikeWillTech
@MikeWillTech 7 жыл бұрын
I have a 02 Passat (B5.5) with the 1.8T it has some troubles starting every once and a while. Could that be the fuel pump? P.S Love the videos, cant wait for more white wookie
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
Possible. I have found that they usually just die dead on that car. Check faults and see if you have a crank position sensor G28 fault.
@MikeWillTech
@MikeWillTech 7 жыл бұрын
The only fault that i know i have is the secondary air pump. The electrical connector broke off it. Although, I just have a cheapo OBDii reader. Thanks for the input! I'll be excited for more Passat videos! Not enough good quality ones out there.
@jayabalakrishnan1902
@jayabalakrishnan1902 4 жыл бұрын
I have one doubt... i have polo 1.2 petrol.. its fuel pressure is 2.8 bar.... its getting fault p1701 fuel trim bank 1 lean. I replaced new pump and o2 sensor... but its getting fuel pump pressure is 2.8 bar only.... can you tell me the reason about it
@jayabalakrishnan1902
@jayabalakrishnan1902 4 жыл бұрын
I taken the fuel pressure from fuel pump, i mean before the fuel filter. pls give me a reason soon
@ThaHammieJaassee
@ThaHammieJaassee 7 жыл бұрын
I have a question... do you know a websites that sells engine mounts for a 1987 mk2 gti for a vr6 engine swap? If so can you link it to me? 😊
@HumbleMechanic
@HumbleMechanic 7 жыл бұрын
+Klaxz _ not sure off hand. How did you do the swap?
@sarahguin6277
@sarahguin6277 3 жыл бұрын
My 02 mazda b3000 V6 is running lean. Shakes will idling. Engine light is on. But when I drive it. It starts flashing.
@ahmadph3577
@ahmadph3577 5 жыл бұрын
my car dosent runs as usual i have loos power is its fule pump problem ?
@Limeayy
@Limeayy 7 жыл бұрын
I would believe so.
@victoralvarado2314
@victoralvarado2314 4 жыл бұрын
I have an 06 beetle with a 2.5l. having problems with car. Came up with p0171 system lean. Took it to a VW dealer and they told me that it could be the fuel pump relay. Can this cause the car to stall and run rough? Car does start fine.
@HumbleMechanic
@HumbleMechanic 4 жыл бұрын
I’d be looking more at the pump. Lots of things I’ve seen on that engine cause p0171
@victoralvarado2314
@victoralvarado2314 4 жыл бұрын
@@HumbleMechanic thank you. Do you know where the relay is located in the 06 beetle? I was going to have it done at a VW dealership but they wanted almost $300 to work on it. I will appreciate your help. Thank you
@joes.7536
@joes.7536 4 жыл бұрын
My stock fuel filter became clogged at exactly 148,000 miles. B5 1.8t.
@rankgts3962
@rankgts3962 4 жыл бұрын
Hello, i have altima 2014 and my code is P0171 with engine and rpm shaking could any one help please what is the problem?
@tiffanie3153
@tiffanie3153 3 жыл бұрын
Did you figure out the issue?
@motowingsadventures
@motowingsadventures 5 жыл бұрын
I can confirm first hand that this is defenitly a possibility. I had a Lean condition on my Touareg T1. First did a smoke test for intake leak. Nothing, then tested the fuel pumps one by one. Touareg has 2. If the secondary pump was also running no Lean condition. But When only the Main pump was running Lean condition fuel trim values were 25+ on Both banks. First changed fuel filter. Didn't help then changed the Main pump and this solved my Lean condition.
@rivmchl
@rivmchl 5 жыл бұрын
@mmlinx I have a T1 Touareg and it starts fine and revs up no problem idling. When accelerating, it looses power, almost like I'm not pressing the gas pedal. I have lean codes p0171 and p0174. Do you think it's my pumps? Thank you!
@timklein3962
@timklein3962 4 жыл бұрын
Have a really weird drivability problem; 2013 Rio; start the car and it misses and has low power and no rpms; shut it off; re start; problem gone; runs fine; and this is literally every 2nd-3rd time you re start; corrects itself; has GDI so 2 fuel pumps here; what gives ???
@JamesWestPhotography
@JamesWestPhotography 6 жыл бұрын
Will a bad fuel pump cause missfires on a 07 GTI?
@godfreywright1968
@godfreywright1968 3 жыл бұрын
my vw t5 transporter 2008 starts up fine but ounces warm it will start to run rough and cut out while driving
@kainhall
@kainhall 7 жыл бұрын
evap small leak along with lean condition.......my 99 buick century had that (it has no IAC) turned out to be that the hose for the "evap purge soliniod...... the vavle on the engine that allows the EVAP gas into the intake.....fell off put the hose back on...... and then the valve sat their and clicked.... sounded like a bad valve stuck on a new purge soliniod..... same issue.....click click click drove around like that for 3 months....and then it started to run REALLY bad popped the hood........heard "WOOOOOOOOSSSHHHH" ok, ive got a vacume leak somewhere turned out, that replacement valve hammered it self apart (bosch brand)...... and about a 3/8s sized hole just open to the atmosphere.... stuck the original GM valve back on......hasnt ever clicked again.... i dont get it.....
@richardtheart1584
@richardtheart1584 4 жыл бұрын
Hi I love your videos I was wondering if the King of golf could help me I have a golf velocity 2.0 I advance the timing the car jerks when I retard the timing the car has no low in power I have a brand new fuel pump and when I unplug the map sensor the jerking stops I don't wanna spend any unnecessary money the engine is a Ady I'm not sure what is the specifications on spark plugs could it be the spark plugs causing the jerking and also I am not sure where the vacuum line should connect for my fuel regulator it's connected to the hose coming from the inside of a car but that hose is not making any suction or pressure please please please please help me . Thank you love your videos keep up the good work
@Pfsif
@Pfsif 7 жыл бұрын
Wouldn't there be oil on the floor if the valve cover gasket was loose?
@andrewszekely6547
@andrewszekely6547 2 жыл бұрын
Excellent question!
@oneg35
@oneg35 2 жыл бұрын
i have an 04 infiniti g35 have a running lean code on bank 1 p0171 car shut off with power still on idle fluctuates checked air leak & maf could it be fuel pump never changed has 155k miles please help thanks in advance 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏
@oneg35
@oneg35 2 жыл бұрын
btw can’t pass smog due to code p0171
@lutherkling79
@lutherkling79 6 жыл бұрын
03 BMW codes p0171 bank one lean and p0175 bank two rich. Do you have any ideas please.
@MotorHeadTech
@MotorHeadTech 6 жыл бұрын
So i ran e85 in my stage 2 2013 audi a4 many times long ago & recently i ran e85 again & now i get a p12a2 error & i think i could just be a sensor issue but im unsure help
@todaysproducts3681
@todaysproducts3681 2 жыл бұрын
My 2010 370z . I have the mechanic guy change a new fuel pump. But the issue is every time I fuel got to haft tank. I only can drive 50 mile it won't go any faster unless I have to fill up the full tank
@ericcarroll9643
@ericcarroll9643 3 жыл бұрын
I have a 1997 Toyota Kerala sometimes it will run and sometimes it will not run will that be my fuel pump I put a new fuel pump regulator on it
@DavidJames-ev9qo
@DavidJames-ev9qo 2 жыл бұрын
I just bought a 2017 volvo xc90 (50k miles). I have p0171 with 0% stft and idle but at speed it jumps to over 50%. The fuel Guage looks like it's going down faster than normal too. Anyone?
@matthew1992ya
@matthew1992ya 5 жыл бұрын
Leaking valve cover causing lean codes that's a first for me
@HumbleMechanic
@HumbleMechanic 5 жыл бұрын
Yeah it’s crazy how some new cars behave
@andrewszekely6547
@andrewszekely6547 2 жыл бұрын
I have a 2001 Audi A4 quattro 1.8T. I have an intermittent P0171 lean code for about two years. Driving small distances doesn't usually trigger a P0171 code but when I drive on the freeway (in Hungary) at 120 km/h (at gear five) (and maybe uphill) I not just get a P0171 lean code but the check engine light comes on! When this happens I stop at the next gas station and delete the error code. Most of the time the check engine light does not come back (on the freeway) but the P0171 lean code does come back! I have replaced the fuel filter, cleaned the fuel injectors and the MAF sensor. The odometer shows about 76000 miles. To my best knowledge the odometer was not tempered! The oil is leaking somewhere , I am about to replace the valve cover gasket, half-moon gasket, etc. I was surprised to hear that the valve cover gasket leak can cause lean condition!
@crystrezerex2life
@crystrezerex2life Жыл бұрын
Can a bad fuel pump....cause a lean condition on only one bank, or is it more likely that it would cause it on both banks?
@lanceduvall8807
@lanceduvall8807 5 жыл бұрын
I have a p0171 code and changed every sensor associated with it(some twice), ive checked for vac leaks and still have the code. Im fixing to change fuel pump, done spent several hundred and still cant pass emissions. But to pull out my hair!
@dtrahan2530
@dtrahan2530 4 жыл бұрын
I'm having the exact same issue!!!
@TekMan05
@TekMan05 4 жыл бұрын
Ever figure it out?
@Nick102195
@Nick102195 3 жыл бұрын
Did you find the fix?
@phalangrikharwanlang7933
@phalangrikharwanlang7933 3 жыл бұрын
My car rpm could not go beyond 5000 rpm.. What is the problem?
@bekimcolaku5258
@bekimcolaku5258 3 жыл бұрын
I have a 2004 Toyota Camry with 175,000 mi when I try to start it in the morning it's very hesitant and when I'm driving the car with air condition on there's little power is that the fuel pump ⛽
@lilkillBeats
@lilkillBeats 3 жыл бұрын
I'm having trouble with highway speeds between 55 -75 my car jerks and hesitate and sputters until I pull over and do normal speeds 30-45 it's okay but 55-75 it's not okay I have changed everything but the fuel pump I mean everything pressure regulator, maf sensor ,iac valve, position sensor, new throttle body, new air filter, new fuel filter, new cam sensor, new crank, new knock sensor, new egr valve, new plugs and wires, Twice new coils, twice, still no change in and (transmission is good) (Catalytic converter is clean and not clogged as well) I mean this car will not run highway speeds right I need help car is 2003 Chevy Malibu 152,000????????????????
@abdouallahuniverse5689
@abdouallahuniverse5689 8 ай бұрын
but most of newer car they have filter on the fuel.pump.asssembly, and the mechanic is not going to get a headache trying to disassemble fuel pump assembly to just change fuel filter, a lot of work, and if the.pump is the problem, the mechanic has to change the pump again by removing the whole assembly, more work. if the filter is.outside, that easy to change and see if the problem solved,
@TEAZYJ54
@TEAZYJ54 6 жыл бұрын
I have an 07 Jetta GLI. My car will start and drive fine. I can drive all over and have zero issues. Then on occasion if I run into a store or park my car. When I go to start my car again it cranks but won’t turn over. I can hear my fuel pump turn on the first time I try and start. I hear the clicks from my sensors. I had a coil pack go out and I replaced all 4. All of this started out of know where with no signs. I want to replace valve cover, fuel pump, fuel filter, and upgrade my coil packs. Anyone ever dealt with this or have any ideas? I’m serious if it’s just my fuel filter being clogged. It’s been a long while since I’ve replaced it. If I can just purchase a filter that’d be much better obviously. Just want some advice if anyone’s dealt with this situation I’m having. I’ve been driving my old Mercedes I’ve had for years that’s paid for. I want to get my Jetta back on the road as my daily driver.
@pandamanrodriguez9060
@pandamanrodriguez9060 7 жыл бұрын
Thoughts on the new VW I.D buzz? From a customer viewpoint and a technician (maintenance and parts) viewpoint too
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