Symptoms of a Bad Intake Manifold Gasket Leaking and when Replacement is Necessary

In this video you will learn symptoms of an intake manifold leaking and causing vacuum leak. You will also know when replacement is needed when it is bad and should be fix. If you hear a hissing sound or experience hard start, no start or stalling it is time to replace it.

Top5autorepairs
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[CJ-ejsk]

Straight up and to the point. No life stories or history of the things that nobody cares about. Just facts that pertain to the point of the video and no wonky footage. Love it! Keep up the great work!

[therenegade]

Tis Guy is a Real mechanic.... and has the real intention to help people.... Thank you Brother.... Happy Thanksgiving...

[Super_Sport_Marc]

Bought a 2005 tahoe from a pretty shady guy almost 2 years ago. Went to drive it home and it cut off and wouldn't stay running. Flash forward a year and i chased down everything related to random misfire that you can think of. Even put high flow cats on it. Found this video and it made perfect sense. The manifold gasket is the only thing i didn't think of. Changed it today. Haven't run it but im confident the gasket was the problem the whole time

[Wildvids]

This makes total sense! P0171 code is popping up and I have hissing sounds, and RPM runs ups.

[TheMarcucio]

Literally just liked and subscribed because you know your stuff. I was getting P0300 and P0405 but the egr is deleted when it was rebuilt. Coils are good spark plug wires are good and new spark plugs installed. Today when I was inspecting with it on I gave it a rev and I could hear air being sucked in somewhere from the front of my intake manifold. The reason why I think you are right is because I’ll have really rough idle when completely stopped and she will miss fire and you can feel it

[doomd]

I've had a vacuum leak for a little while and tried propane on the vac lines with no results, pushed everything right together and nothing. Then one of the guys at work said it's probably the intake gasket. Well, it seems to be the issue, your symptoms match exactly. Keep up these videos. Not enough people know how to fix their vehicles anymore. This is just an issue I haven't had before

[armedblackamericansaba]

I learn everything from this guy he’s the best on youtube

[joelf]

Thank you top 5 auto repair for posting! Here is my experience...on my daughters 1999 Honda CVR she was experiencing a high pitched whistle sound once the SUV got warmed up, most definitely was a vacuum leak somewhere. Process of elimination I was able test all other hoses for vacuum leaks and nope...so the last possible leak had to be the intake manifold gasket failing. It was a pain to get the intake manifold off and even harder to scrape the 25 year old baked on gasket off (surface has to be completely flat for new gasket to seat properly). FYI, drain the radiator fluid first, and use a clean container if you are planning to reuse the fluid, otherwise alot will spill all over when you pull off the intake manifold, and most likly you will get some fluid into the engine itself and you'll then you'll burn white smoke out the tailpipe. The only way to get the radiator fluid out of the engine then is to do a oil change! Also, if you don't seat the new gasket and the manifold on just right when you reinstall it, you'll still have a vacuum leak and a very fast idol, fix that by losening the manifold again and reseating it. Once that's fixed, refill the radiator with fluid and check for any fluid leaks around the manifold and tighten bolts more if needed, if all is done right the whistling should be completely gone

[saidaker]

Thanks sir, we need this type logical explanation .
Not a long lecture, thank you.

[nmartin]

SUPER VIDEO!!! To the point!!!! Helpful even for those of us who aren’t super mechanics!!

[blkjae]

He's definitely on point. I recently bought a 2006 Volvo XC90 4.4L V8 and supposedly they changed the MAF sensor. So I'm guessing it's new. I'm getting a lot of carbon build up and poor power and gas mileage. I'm going to change the MAF sensor and use Sunoco gas. Hopefully this will help a little bit. Next, would be to change the intake gasket to cure the air ratio.

[abdouliejallow]

bro u a star really appreciate for your knowledge and patient

[NJRt]

I have watched hundreds of auto repair youtubers and feel you are the one of the best👍👍👍.
I am fixing a 01 MDX with engine hassle noise when acceleration. There is no DTC code but I suspect the minor vacuum leaks (running lean) somewhere. I used propane gas to check all hoses and vacuum booster and found no leak. So is it possible the manifold gaskets are leaking? May I use propane gas to prove that? Thank you.

[DavidGarcia-rnzj]

Finally a video on this ! Been looking for videos and no one posted, I have a 2001 Camry 4cyl I replaced it but I think I might have not torqued it right, it has a rough idle when cold start, I’m probably gonna replace it again and hope it works

[DIYLifeSkills]

Yup, I hear the clear hissing sounds right at the mating point of intake manifold and engine block.
I had to replace remove the intake manifold to fix the rear valve cover gasket on Toyota 3MZFE engine,
and oil leak is now fixed, but I have a strong hunch that intake manifold (with new gasket) is not sealing air tight.

[fieldsofomagh]

Good to know these symptoms while trying to track down a faulty engine.

[camlobesvtec]

I squirt some crc throttle body cleaner in the area with the engine on. If its leaking you immediately hear the change in idle. Never perform this with a really hot engine for some fire safety. I torqued it a lil more with a new gasket and no more leaky leaky.

[PartyWolf]

I heard a suction sound coming from the bottom or my suv where thats located it might be tat issue but I get no codes and my car smells like pure gasoline and fumes at random times. Car also has hiccups rpm drops and comes back to its steady rpm makes tye car tug or jitter.

[turadura]

My Windstar didn’t have any of these issues except slight oil in coolant reservoir. After taking apart found lower intake gasket was leaking a bit.

[shawnmatthews]

Thank you so much for this valuable information . I definitely need a manifold gasket .