exhaust leak

[98MitzuGST]

i can smell exhaust with the windows down when i get into boost, does anyone have a good trick to find and exhaust leak?

 

[blizz99]

When the car is cold, plug up the muffler and have someone start the car while you're in front of the vehicle looking for the leak.

You can also try seafoaming the car and have someone giving it gas while you're looking for the leak.

 

[awesome]

If u have the stock downpipe I can almost guarantee the leak is there

 

[98MitzuGST]

no its a full greddy exhaust but thanks i will try the method of pluging the tail pipe n checking thanks

 

[BogusSVO]

When the exhaust pipe is cold.. look for soot tracks at all the joints.

 

[JackStieben]

How loud does it sound? Do you have a wideband?
Common exhaust leaks, for me anyways, is:

• downpipe to o2 housing
• exhaust manifold to head

It can also be where the turbos hot side connects to the o2 or even the turbo to manifold. If you do have a wideband and your numbers are fine, it's possible the bolts holding the downpipe to the rest of the exhaust or any other connecting bolts are loose/gone. Just make sure all the bolts holding the exhaust system together are nice and tight. Worse case scenario is that there's a crack somewhere.

 

[98MitzuGST]

i have a wideband but its downstream not on the elbow, im going to try the seafoam thing tomorow and see where it is coming from, will post results

 

[Archer Fabrications]

dales soot idea works very well

 

[98MitzuGST]

oh i missed the soot comment, ill do that before i go get seafoam, i just really havent dug into it yet and i still have my heat shield on so i cant see until i take it apart, will keep posted

 

[Archer Fabrications]

Dont seafoam... Lol

 

[o0GuitarKid0o]

Dont seafoam... Lol

+1 baaaaaad idea to sea foam alright , i bought a bottle haven't even used it cause to many horror storeys to late to return so I just use it to clean stuff haha my brothers crank sensor went after he sea foamed his cavileir could be a coincidence but there's really no need for seam foam

 

[o0GuitarKid0o]

You can easily tell when you have a leak buy the soot around were the leak is you just have to safely go under neith the car on jack stands or what ever and just look and feel I used some exaust stuff to fix mine still attached to this day

Check your flex pipe also

 

[98MitzuGST]

yea i have access to a lift at my work so ill just pop it in tomorrow

 

[JackStieben]

It might be a good idea to also clean off your exhaust system and then run it to look for fresh soot. I don't know what the roads and weather are like up in Michigan right now, but I'm sure it isn't the nicest.

 

[98MitzuGST]

roads are fairly dry right now but it is michigan so it could be back to snow and ice tomorrow