Most videos just show how to replace each part but don't show how it's all connected. I've replaced my gas cap twice and was about to replace my purge valve. Now I can look at everything and make sure there's no visible problems. Much appreciated 🙏

With such a good video like this, I saved me thousands of dollars going to the dealer / shop. Greatly appreciated.

This is by far the most complete video on the small evap leak that I've seen so far. I was thinking I might fix this myself cheaply but not so sure I can fix it OR that it will be cheap. At least I know a few more things I can look at, but I may have to take this in since I really don't have the time, tools, or inclination to fix this myself. I did buy a new gas cap and that did shut this off for a little while then it came right back on. I did not notice if there was any rust build-up there so I will check that now.

Usually I severely dislike 1A auto but this guy and Sue are the best and they legitimize the channel. In my humble opinion lol

Would an EVAP leak cause hard starting?

Good video. You are a good teacher!

My dealer wants to replace the entire assembly when just the cracked hose you showed is chewed up....what's a good replacement for that rigid contoured hose?? I'm not paying 1000 dollars for 10inches of bad hose.

Your videos have helped me to move forward in my automotive career and I greatly appreciate the content.

Thank you for the video, beautifully done, and good info pushed out Suggestion is to make sure that you check the rubber hoses around the Purge Valve, especially if your car is older as the rubber gets hard and begins to crack. If you have a vacuum gauge, test out the purge valve on the exit side NOT the intake side where the fumes come in, test to see if the output portion of the valve hold vacuum if it doesn't then that is part of the problem, buy a new OEM valve, avoid aftermarket ones for the long haul. I am going through this on a 2008 Lexus ES350, working the issue through, but can't easily get to the canister in the back as it is buried and not easily to access without a real lift which I don't have. Thank you

How do I know if it's the purge solenoid under the hood or the vent/whole canister assembly? I'm just guessing and don't have a high level scan tool.

I’m curious is the code for an evap canister the same as the code for anything else including a gas cap problem?

I greetings. I have 2010 dodge charger code 0455 . Did smoke test, saw leak at the canister. Better known as the " fuel vapor leak detection pump filter". Strange but true.

Hi very informative video. I have a 2016 Corolla with strong fuel smell coming from AC vents first 1-2 min after being started in morning, then clear normal air and no engine codes. Any idea of what could be my issue?

On my 2003 4.3L GMC Sierra I replaced both purge valves (front and rear) and after putting a smoke machine on the system there where no leaks BUT I still get the P0442 / P0449 codes??? I am going to try replacing the charcoal canister next.

Also don’t buy aftermarket fuel caps. Use oem parts. Thank me later 😎

Thank you

Thank you!

Help me understand this: If the engine is off, the vent is open? Does that mean the gas tank is venting into atmosphere? Is there a one way valve in the vent line to keep this from happening? I don't smell gas fumes wnen wandering about the car so I assume the gas fumes in the tank are not escaping even on a hot day. Am I correct in assuming the round canister next to the vent valve is some kind of filter? How much pressure can build up in the gas tank? I know, too many questions.

Good stuff 🤙🏽

Had that on my HHR the cap was bad. Replaced and it's fine

Thank You 😊

Thank you bud

Thank you. Grae video..👏👏

My hose going to canister vent was cracked and loose I just exchanged it with new one hopefully 🙏 that solved my evap leak. and that check engine light stays off.

Getting Evap code and also check fuel fill. I put $6000 last year ( 3 catalytic converters, purge something’s, sensors etc). My problem is I don’t have a fuel cap it is capless. I have cleaned the nozzle which works for a while then boom warning light comes on again.

Not that simple. Many different evap systems. I had a po444,po456,po448 and po447. Fixed the 1st 2. The 2nd 2 cost me plenty

I have a p0446 on 2001 chevy tahoe. I changed purge valve, ventilator valve, and gas cap. Check engine light came back on. Only thing I haven't done is the charcoal canister.

I have a 2011 b200 mercedes and i got the p0441 purge control valve jamming /stiff open not sure where it is can ya help a brother out

I have suburban 2007 flex with p0171/p0174. It came after p0175 and the injectors changed. The alcohol was 50% and the fuel trim was reset, and it dropped to 3-4% but now it missfire, cant drive, barely idle .Then the other two code came. The new maf, fuel pump, throttle, new ignition cables. Smoke test for leak showed nothing. What can it be?? Evap? Map? Fuel pressure?

Thanks ❤

I change the vent solenoid and the canister vent and the check engine still on?

Replaced all of those and still getting a check engine light but now with no gas cap issue 😫 any ideas? No obvious line brakes no filler neck deformity.

I have a 2003 Honda Odyssey EXL with a P1457 EVAP code. It says (canister area). I have replaced the charcoal canister and charcoal canister vent solenoid and bought a new oem gas cap. If you could help me eith this, that would be awesome.

Help:I just changed my fuel pump , I got a tighten fuel cap after then a check emission system after . Any idea why?

I heard over filling the gas tank on my forerunner can Cars and evap system problem is that correct?

Try doing a purge valve on 2019 escape 1.5 eco boost

I'm getting a p0440 for EVAP system but I'm also feeling the engine jolting a bit off and on. I don't think you should feel anything from an EVAP problem. Where should I start?

I got EVAP leak and incorrect purge flow Do I need a new tank? Is it possible to change at home?

My mechanic is saying to change the esim and that it’s a common thing with dodges. But no one mentions the esim in any videos pertaining to small evap leaks

Hi I tested the sensor, it works very well but does not work on the car, I tested the wires the first has 12 volts and the second o volt, how do I know where the wire is cut

Can a Evap leak cause P0172 and P0175. It’s fuel trim to rich in bank one and two!

P0455 in my 2K Dodge Dakota, 2nd gas cap and replaced evap solenoid. At my wits end!

I have a buzzing noise but is coming from the upper Window rear side driver seat. it does it without me turning the engine on or putting in no key. even when i close the door and is not running then like about 2 minutes or less it turns off. i also press my door lock with my hand and the buzzing came back.

2000 pontiac firebird 3.8l base I tried to get fuel but it would not put any in I tried n 2 different pumps. Twice on the first one and twice on the next one.

Nice

Problem is it is NOT showing the 3rd vacuum line going to the Purge on Fords, all the way to 2008. Not the bigger diameter plastic line carrying the fumes into the manifold, the small diameter plastic line the supplies vacuum from throttle body to the purge valve. Not one so-called expert has answered this, though on one site the author said it was needed for a Ford Purge to operate. I had a big vacuum leak/P0171 mechanic knocked the line off at the TB, I found it/fixed it. I had ZERO EVAP-related codes during the 2 weeks the vacuum line was disconnected, so what exactly is this vacuum line for? During the time it was off, I had all the usual things a vacuum leak would exhibit. Fuel trims way too high, high idle, then low rough idle, stalling, and low downstream O2 sensor readings. Also the P0171 would come back after I cleared it. I suspect it is used to generate vacuum for the EVAP bleed-up rate test. That test is not run very often by ECU, but someone with a scanner can do it, and watch the bleed-up rate.

I have a strong gas oddor under the hood of my 03 jeep Grand Cherokee. I discovered, by mistake, that when I disconnected the purge valve hose ( to charcoal canister) the gas smell goes away? When I hook it back up like normal, gas smell returns instantly? Anyone have any idea what’s happening here

Can an EVAP code be caused by a cat code such as a 0420?

What may cause blow back in the gas system when one goes to fill up at the pump? This is the trouble I am having on my 2006 F250 SuperDuty.

I just had my alternator replaced and a thermostat sensor but now I have a p0443 code. My friend who replaced the alternator and sensor said the check engine light will turn off in a few days after driving is this true?

Hi I have a 2000 Chevy Impala. I am getting this code: P1441. "EVAP. System Flow During Non-Purge." I already replaced the Purge Solenoid and the Canister Solenoid and the check engine light with the same code again. Is it possible the the gas cap can produce the P1441 code?. Thank you so much. Hope you will respond to me.

I get ch engine w/ evap icon no code? Whats up with that

What about a 2005 mazda 3 small evap leak

Code on my 2017 Chrysler Pacifica is P0456 with this problem this make and model doesn't come with a gas cap not sure if this could be the problem or not?

What would P00456 be for ?

😢 I don't know where else to go. NO mechanic could figure out my problem. I know this the only place that has the answer. I have 98 4runner with 140k, which I gave my son to use. Recently, the car shutter around 50 mph, it feels like it's searching for gear (going up and down shifting) but I know it's not a transmission issue. Only a few think that I can detect, the tranfercase has a front drive shaft seal leak, probably half of the fuild is gone. And the other was a recent front brake pad change. Clicking sound is heard on driverside drive axle spinning it, car shakes around 60-70 after brake change. PLEASE can someone give me some pointer on where to look. Thx u.

Where those all small leaks or was the fuel cap the only one? Mine says EVAP system leak detected (very small leak). Could it be under the car or is that a large leak? Thanks

I'm getting a blinking Monitor icon, "EV", yellow LED indicator light, No DTC's presently stored in code reader's memory. Also, NO Engine light is presently showing on dashboard. I'm not a 100-mile guy at age 75, so it takes me a while to travel around town (don't travel) until a cycle is reached. It's been since May when a part was changed, and codes cleared.

Have issues with p0448

What about for capless gas tanks?

Can anyone tell me why my vehicle takes at least 2 tries before it starts up? Sometimes it takes me 10 minutes to get it to turn on. Ive changed sensors and starter is good.

Does that apply to an 08 Ram 2500 5.7 hemi? I'll be driving & the engine will sputter then even back out, then check engine light comes on & voltage light starts flashing. I pull over cut it off for a bit & start it back up, voltage light goes off, but check engine light stays on. Code says evap system, already got new gas caps.

I keep getting a 443 2000 Durango 5.9L say the circuit is where I should look tested to pcm and keep getting the same code. Replaced the purge valve 4 times still same problem smell gas on cold start

Why the 2003 ford ranger 3.0 v6 hast two purge valves?

I have smoke coming out of the canister vent valve exhaust is that it's not even hose looks like electrical flex conduit connected to it.

Can you do a tutorial on 2011 Nissan rogue AWD krom EVAP Large leak

My truck is a 2018 with no gas cap so how do i check??

I would like you to make a video with a Nissan versa sv 2017 to do the same thing for me to learn

Would it cause my truck to stall out

put marvel mystery oil in my tank evap code went away after a month.cleaned gas cap and filler neck also.

I replace the gas cap. Too many times. Didn't work but I don't have to buy any of this stuff. It's clearly visible on where the leak is between the fuel filler neck, what the gas caps at and the axle hose that goes from the fuel tank to the fuel filler door. It's obvious. There is a leak at the field filler neck right behind the fuel filter door. Clearly visible because it's loose and wobbly. I don't think it has to do with it being cracked or anything. I did replace the fuel pump and I had to remove the fuel filler hose in order to drop the gas tank and get to the fuel pump so I think I'm either yanked on it too hard and loosened it up to where it wobbles.

I have a question I have a similar problem, but the code is P0440. What does that mean?

Could the P0455 code be expensive??

i got chevy trailblazer 2004 4.2L ext LS Rear Wheel drive code P0420?

There is no Gas Cap in my Chrysler Pacifica and I have P04ED and P04EF errors :-/

Some times evap canister valve needs to replacement 😁

I still don't understand how the system works. I do appreciate your info on leaks, but I am still in the dark.

I did a smoke test and smoke is coming from above the fuel tank

I have a small/large evap leak after getting my fuel pump replaced😔

1:55 my god, look at that rust.

Thanks for sharing this video, question every time I start the engine I can smell a very strong gas odor that last about 1 minute. I don’t have any codes or drivability issues but the gas odor is there every time I start my 07 honda pilot. Do you have any ideas what could cause this? Thank you!

So can the vent valve cause you to smell gas in the car if it's gone bad?

So I have a 2000 Toyota Corolla 2015 and it’s throwing a code for P4020 I’d had that code come up before but it was specific and it was the sensor that is underneath the hood so I guess that’s the downstream I’ve recently replaced my purge sensor, and the brand new one is doing the same thing as the old I almost think that I had an evap Code at some point And a few years ago, I replaced the charcoal canister and both sensors I had some issues were we found hoses that needed replacing for the vacuum one of them wasn’t done, but the other two were the one going into the PCV valve, which was replaced, valve which was also replaced What brought us to realize that there were some issues and it wasn’t only the check engine light, but it was the car that was bucking I can basically not give it any gas or any pressure on the gas pedal without it. Ugh and fucking. Recently watched a video where the guy said if you get a P for 020. Don’t think you can replace the sensors and that that will fix the problem. You most likely need a new catalytic converter. I’m not in position to replace any of it is a big issue because I use my car to make money so having difficulty using it is making things almost impossible Wondered if you had any advice Also, in the last 6 to 8 months, I’ve had to replace all the spark plugs, and all of the coils Alternator went and battery All of that’s been done and still having drivability issues

I'm getting code poA31 06 H3 no chk engine light on

Sooo my car doesn't have a gas cap, is that not normal?

What if you don't have a gas cap

He SAID LARGE OR SMALL Leaks ITS NOT FOR ALL LEAKS DONT GET ON HIM. YES IT CAN BE OTHET LEAKS. NOR THAT Simple...

Keep the bg music. But lower the levels.

Looks like it just needs the hose replaced

Audio is too low....

Holy rust

I've always read that if you fill your gas tank all the way to the opening on the neck, this could cause issues with the evap system as well. True or false?

Is this an expensive fix?

First

Uuugghhhh all i see is money 💰 flying out the window, 😢

Fuel pressure sensor. Bad information in, bad information out.

Lose the music. It makes it hard to understand you.

Get an EV, this all goes away!

2009 kia sportage , code p0455 , and i can hear bubbling in the tank when i take the cap off and every time that i fill up with fuel i have to crank several times to start the engine but only after adding fuel ,, got any ideas ?