I changed my plugs and knocked that hose loose and couldn't find the reason for the service engine light until I saw this video, thank you for the help.

Thanks a million!!! Spent about an hour looking at other videos before I saw yours. Went outside and...BOOM...instantly found it. Rough idle in my 2000 Expedition with 4.6L engine. Replaced and running smooth as new again. Thanks again for this simple, quick and easy fix. Part number for my whole PCV valve hose assembly with new valve, insulation and big rubber boot for manifold end was : XL3Z-6C324-HA. NOTE: the location on the 4.6L is nearly identical to that of 5.4L

I cleaned the throttle body inside and out. didnt fix my rough idle. I replaced the two electric parts on the throttle body assembly still rough idle. After watching about 50 videos a came across yours. WOW I looked, felt and there it was the fitting was just like the one in your hand broke into. Replaced it with new and runs perfect brakes are working great now since i have a vacumm on the system runs perfect. Thanks this was the best video of all. No body else mentioned this hose ever.

THE video for 1997-2003 5.4 + 4.6 owners... This is the first thing to check + replace. What is ironic, downright evil is the symptoms mimic a bad ISC, and like me, I changed the ISC not realizing I was literally on top of the problem!!! THanx man, straightforward and helpful video.

Stumbled across this video while researching my own vacuumm leak. Spot on for diagnosis. 2 months of my time fixed on just over a minute. Great info.

Thank you so much man, it's late as hell and I jumped out of my bed and found the leak immediately

Found and fixed, I sprayer water at the back of the manifold and the truck bogged. I was able to reach around the intake with a wrench and pry the hose off. Slipped the new one on and she's running right. Thanks for the vid bro.

Had this same issue with my 2003 f150 4.6. Watched the video, and I thought, there is no way it can be that. So... after the video I walked outside and checked, and low and behold, my IAC hose was broken. Replaced the elbow and placed a clamp on it to hold it still and the truck runs like new. Totally fixed my issue. Thanks for the awesome fix. Saved me a trip to the shop.

A thanks boss ive been killing myself trying to find the issue an you took me right to it all that money spent an it was jus rubber ......you are the man !!!

Thank you SO MUCH for this video. Found the issue immediately. Good thing about the E series is that you can pull the firewall panel off and the problem is right in front of you. Highly reccommend others to check this FIRST. 1997 E250 5.4 130,000 miles.

Soon as i get home from work going straight to my truck and look right there hope it doesn't rain on me thank you man. Very helpful video

You doing the lords work ole son!

In my opinion, Homie you are GOATED for this vid. The amount of frustration and hose replacements, pcv valve, idle control sensor, mass air flow sensor, throttle body tinkering, only to see that Fonky, yes FONKY, ass hose connector broken 🤦🏿‍♂️

The hard plastic PCV valve hose has rubber elbows on both ends. The one on the back, near firewall is Dorman 46036. The front one that goes on valve cover is Dorman 46022. O'Reilly's had them in store.

You just fixed my 99 f150 w/390k miles. Thank you!

Thanks for posting this.....I have loud audible vacuum leak with exactly the same symptoms. Headed to the parts store!

I wanted to thanks you for this video. This wasn’t my problem, but it did inspire me to check the hoses and one of them was bad indeed.

Thank you very much. This fixed my problem after replacing all plugs and coils and o2 sensors. 👍🏻👍🏻👍🏻

I was ready to replace my intake manifold. Thought it was cracked. Thanks man.

I just got one of these for $1100 us and you just helped me fix it it runs perfect now

Dude Thank you so much! I went looking and sure as shit it was cracked wide open. Great video.

Thank you thank you thank I wish I could buy you a case of beer you have no idea how much this helped

Thank you for your input it fixed my truck right on up. Keep all the input come.

Oh man! was I glad i found your video, spot on !!! save me time and money, thank you soooooo much, I will add that i could not find the part a my local stores so i end up buying a hose big enough to fix it ( what i call the mickey mouse method ) but thanks a million!

Thank you very much for your video this was my problem and now the truck runs amazing ! You rock!

Thanks so much for posting this video, it was a great help. Thought that was going to be a huge hose at the back of the Engine that I couldn't reach until I saw your video. 2000 Ford expedition idling up-and-down or loping until this piece was replaced .Thanks again

Just got mine fixed for $7.99. Thanks for the tip. Only difference was my 1997 needed a little bit smaller elbow pvc. Other than that it was exactly where you said it’d be and wasn’t hard at all to remove. Thanks!

Thanks man. you help me solve my problem and saved me from takingv truck to the shop!

Thanks for the video! you could probably make a bit of side cash if you include a link to a good parts search resource in your description. Because I don't know what the part is called. This was super helpful though!

12 bucks 7 years ago now is 27.99 thanks joe and kamala

thanks a lot !! i suggest to write p1131 ford in the video title will help other FORD`s victims to search for it

My symptom on my truck, which was a 5.4 , was that I would cranck it, it would start and immediately die out. It would only stay running if I step on the gas, and it was horrible. My problem was that I was replacing the pcv valve grommet and when I pulled out the pcv valve I accidentally pulled that rubber boot off on the other end of the plastic pipe. It would give me an O2 sensor code or an EGR valve problem.

Thanks i got one at canadian tire just before i called a mechanic i felt the leak and few bucks and a little cutting snd pulling no shake !thanks !

Great video!! Keep on wrenching!!! 👍

Great video! Exactly what was wrong. Thanks!

I had the same thing happening my truck would idle up and down and rough and the darn curved rubber piece was melted halfway. The problem totally went away after I was getting random misfire code, lean on bank 1 or 2, O2 sensor, and cleared them now no coeds are coming up.

thank you so much u save me lots of money was easy to fix it

Wow I would’ve been fixing my truck forever if I hadn’t found this video. I knocked mine loose while doing my plugs. I have a 4.6

Here’s the part number guys I found it. It was extremely hard to find but I see where a lot of people are asking for it and here’s the picture in the part number. 46035 PCV elbow by Dorman

So the same 4.6 in the crown Vic ? I wonder if this is my issue. My crown Vic is running rough man and is sounds a leak but it’s nears after I turn the car off it’s a loud hissing noise.

Mine just chirps when I rev it but it sounds like it’s coming from that area, I’m gonna try this thanks for the post

Thanks Man U fixed my truck lol

you're a legend and a saint and i love you

Bro you just save me at least $200 from Illinois thank you

I cant find the plastic hose that it hooks to on my 2004 expedition...help

Thanks for the video man I appreciate the help👍🏼👍🏼👍🏼

Does anybody know what the name of that part is or the part number itself? Because I went to O'Reilly and they couldn't find it anywhere

What's the piece called that it connects to. The part that goes into the manifold.. I broke it trying to put hose back into it! And a piece fell into intake.

Good short concise video

Thank you so much salt my problem 👍

Anyone got a part number for just that piece?

Could you use a pointer or stick to point to exactly where that hose is.?

Sounds great but what is the piece called?

That might be my issue. I have a p0171 p0174, when I spray carb cleaner around area it idles up. I've sprayed all around the intake and other areas with no affect. Can this cause a p0171 p0174 CEL?

I'm really hoping this is the issue with my 07 5.4 it's been bogging down under load and refuses to go uphill at times

Well same thing with my 97 5.4l expedition so I checked the hose and sure as shit the thing had a whole do I drove to orileys and bought the dorman 46036 pcv hose and I'm about to put it in I will update when I get it on it was $22

Is it the pvc hose that plug in on back of manifold?

Is this situation relate to a 04 ford expedition Eddie Bauer 5.4 v8?

I hope that's the problem I have bro...Is making like air noise leak or something like that...even when I turned off

Man I can’t find it on my 07 4.6L I get this super loud intake sound after driving for an hour... Sounds like a big rig when accelerating... like air rushing in ... Can’t figure it out and can’t find this elbow to check it..

Thanks for video I bought new hose but can t reach behind supercharger on 5.4 to put hose on intake is it safe to block that hose off truck is running fine with it blocked off

Does anyone know where is this located in the 03 ford e250 I’m having rough idle and engine shakes and sounds like a misfire when giving it a little throttle

I couldn't see the part you were holding clearly to get the part number/name or the area where you were shining the light since it was a glare. Could you tell me the part name please?

Please tell me the year make model in this video. I have a 2004 F150 with the 5.4 I can't locate the hose depicted or the fitting anyway.

Is this for the 2005 5.4 3v motor.? My motor looks different than this, so I'm not sure.

Just picked up a 97 5.4 Codes are p0174, p1151, p1131 (bought it to be a beater) sounds like it's got a miss at idle you can hear a vacuum leak and when driving it stumbles at 3k+ rpm unless I very lightly ease into the throttle also the brake pedal is stiff when in park or reverse as soon as I go into drive it pretty much drops to the floor...could all this be cause by the vacuum leak?

I have a 07 Ford F-150 5.4L 4x4. I been found were the rubber 90 goes. I can't find the smaller hose that connects to the rubber 90. I also noticed that when i put freon in the a/c it leaks out of the tube on the fire wall that the rubber 90 goes to. If anyone can help please i need it. Im learning a lot about mechanic work especially on this truck lol.

Hoping this is my issue, banging my head against the wall trying to sort it out.

Curious if this is my problem truck runs with up down idle stumbly misses, has a pretty loud hiss leak sounds from left side. 99 f150 4.6l 4x4

@uglyhp8225 I have a 2002 5.4L Expedition and runs just fine when it’s warm out then when it gets cold out it will idle rough and stall at red lights so I have to put it in park and try keep the engine reved up so I was going to assume this is my problem maybe I replaces the pcv valve and I replaced spark plugs coil packs and boots and still idles rough so I was wondering what that part is called imma try this next and see if this is the issue possibly

what is the part number for that elbow ?

I got the exact same part as u to replace mine, from napa. The large end didnt fit my iac too big

Any chance this (vacuum leak) could be affecting shifting into 4WD (1999 F150 5.4, AT, dash selector switch for 4WD) which is controlled by solenoids/vacuum lines? My 4WD goes in and out of operation frequently, but has gone out and stayed out for over a week now. One previous fix was replacing a crumbled rubber hose connecting vacuum lines near the solenoids on the firewall. Solenoids already replaced. 4WD light not coming on (dash), and I hear a clicking noise behind the selector switch when I move it to 4WD high. But no shift.

Is it the same on an 07 4.6l?

I have a 4.6 06 f150 an I went to turn it on and something popped. It made a popping sound like air was leaking out. Then stopped. But I have poor idle and ac doesnt cool anymore. Air was leaking passenger side right behind intake manifold. Any thoughts?

2003 f150, 4.6 randomly feels like it misfires, checked each coil pak and they are good. Right when the engine starts running like crap I can hear a flutter sound near the air intake area. But then it will fun good. Does this constantly even when driving, like the timing is off for a few seconds No engine codes, already changed fuel filter as well. Thank you

I taped mine up but still failed smog..im gettin one of those tomorrow!

Hey man thank u for the video. I'm having some troubles to find the elbow in my local store could u please give me the oem number of the part to buy it online? Thanks again

Does anybody else's 5.4 burn oil quickly? I have a 2005 5.4 fairlane in Australia (Barra engine), purchased with 30,000 miles but burns through 4 litres of oil every few thousand miles or so. Is this standard or were my oil rings flogged out before I bought it? Cheers

do they make a kit to replace all vacuum hoses? for the 2000 4.6l?

What is the cylinder shaped part to the right of your flashlight that has the hose running from back of the IAC over towards the driver's side and loops back to the front of the throttle body

My 97 f150 4.5 looks nothing like this. Tried looking for that back piece but no luck

Thanks

How many pounds of vac pressure should a 5.4 read at idle? Say, out at the 4WD solenoids?

I see where you show where that other end of the vacuum hose is behind the throttle body, but how in the heck do you get it off and the new one on. Can hardly get my hand in there.

Thank you

I have an 07 ford f150 4.6 and it is sending out 3 codes p2195, p2197,and p0171 and I changed almost everything but I can't find that elbow. Where is the starting point?

My truck doesn’t wanna start with a code p0401, like it starts but dies right away without throttle?

So would this be the case if I am getting a P 2195 / 2197 CODE? I changed my MAF, however it still has the codes? I have a 2004 F150 4.6L (Heritage) Truck

​ @ugly HP I can't find this on my 2005 f150 5.4 3v triton and the part number you listed says it doesn't fit my truck? Do I not have it? lol Truck started idling rough, plugs and coils have 10k miles and cleaned MAF and throttle body.

Will this cause other problems such AC blowing problems we have tried everything else, blower motors resistors and replaced the rubber pieces on the vacuum hose, and still nothing tonight we just found out this also wrong on my Ford expedition, waiting to get that part to put it on, but now my car won't start. Please if anyone can give me some advice on how to do this would appreciate it

Would this cause it not to start after stalling out for around 20 to 30 mins?

I have 03 with 4.6 this hose bad what part number name???

Hey- good info. Where does the other side of that line feed to? PCV? Thanks!

Hat tilted u save my pokets

Mine has a engine coolant line in front of it what does that mean? I pulled it off and antifreeze squirted out

What's the messurement of that piece

What is the Part Called the Rubber part?

Ok so I have 5.4 it’s leaking in that spot I believe. Only problem is I have a lightning. So that line comes up from behind the motor like u said and t’s off to the supercharger and the pcv valve. I can definitely here the hiss of the leak when I move that hose. What does it connect to? Another hose or some other component. It’s tough to tell cuz it’s so far down there and it’s wrapped in heat shield foam? Any advice would be greatly appreciated!!!!

What is that part called?