Need Help w/ weird sound

[blacknblue2002]

ok...i just got my car back from my friend's garage. He installed some shorty bbk's and some 4.10's for me (not too bad at 400$). Anyways...now my car is making a very irritating noise. The sound seems to come from the driver side around where the header might be, or where it meets up with the midpipe. Still, the sound doesn't exist when the car is in neutral, only when I'm in gear. The sound also gets a lot worse when my engine is working harder (like going up a hill in a high gear). The sound is like a 'whisking' noise that beats like a humming bird almost. Sorry...wish I could exlpain it better . Is this what a header leak sounds like? Or...is this possibly something to do with the new gears?

 

[98blackmagic]

Gear noise would be a wine from the rear-end. Sounds like a possible exhaust leak. I would take it back to him and have him check it out.

 

[blacknblue2002]

Not too sure bout this....but why doesn't the sound show up when the car is in neutral???...if it truely is an exhaust leak it would be a huge hassle narrowing down where it's coming from.

 

[menasci]

Exhaust Leak

 

[streetstang03]

what midpipe do you have on it? its either an exhaust leak or just the sound that o/r xpipes make.

 

[stangGT97]

another vote for exhaust leak. He may have forgotten to put on the header-midpipe gasket. When I had a leak, it only presented itself when the engine was under some sort of load, i.e., in gear, not in neutral

 

[03ghoststang]

im also going to say its an exhaust leak

 

[HoustonGT]

Yup, it an exhaust leak...i freakin hate that sound. I just got a huge leak on the passenger side fixed and now the driver side is leaking. I'm gonna kill someone soon if i can't get rid of it soon

 

[Kilgore Trout]

exhaust leak

 

[blacknblue2002]

Thanks everybody...I'd much rather it be an exhaust leak than a drivetrain problem. I plan on jackin the car up today to swap my wheels back over anyway...hopefully I can find the leak

 

[blacknblue2002]

ok...so I had the local muffler shop put a stethascope to my exhaust and they found a leak. I've unbolted and bolted the midpipe back to the headers like three times and I can't get the leak to fully disapear. Is there any high temperature silicone sealant that anybody out there recommends or is it possible to mess something up using a sealant? comments? suggestions?

 

[HoustonGT]

ok...so I had the local muffler shop put a stethascope to my exhaust and they found a leak. I've unbolted and bolted the midpipe back to the headers like three times and I can't get the leak to fully disapear. Is there any high temperature silicone sealant that anybody out there recommends or is it possible to mess something up using a sealant? comments? suggestions?

Jion thje club. I've installed/uninstalled my x-pipe 3 times and still can't seem to completely get rid of the leak. Its extremely frustrating because it sounds like crap, can affect gas mileage, and robs a bit of power

 

['03GTinFLA]

My exhaust shop used this red stuff. It's been on for about 5 months now and it's working well. The only problem is my leak is coming from the top of the headers and after 3 tries they still haven't fixed it right. I said f it cause I always had to leave it all day and then I had to get a rent-a-car. So I live with it. It only makes the noise under load, not at idle and I notice it the most in 5th went accelerating. I think that's because that's the only time my exhaust isn't drowning out the tick of the leak.
If I were you I would take it back to the guy who put it on, bring new gaskets and a set of LT's if possible. If not just the gaskets and have him give it another try. I guess since he's your friend maybe take a case of beer with you.

 

[blacknblue2002]

[QUOTE='03GTinFLA]

My exhaust shop used this red stuff. It's been on for about 5 months now and it's working well. The only problem is my leak is coming from the top of the headers and after 3 tries they still haven't fixed it right. I said f it cause I always had to leave it all day and then I had to get a rent-a-car. So I live with it. It only makes the noise under load, not at idle and I notice it the most in 5th went accelerating. I think that's because that's the only time my exhaust isn't drowning out the tick of the leak.
If I were you I would take it back to the guy who put it on, bring new gaskets and a set of LT's if possible. If not just the gaskets and have him give it another try. I guess since he's your friend maybe take a case of beer with you.[/QUOTE]

i like the way you think

 

[mijo_latino]

hey HoustonGT, did you happen to use all 4 studs? How did that go?

 

[HoustonGT]

hey HoustonGT, did you happen to use all 4 studs? How did that go?

Yup, i couldnt get the stud out myself so had a shop do it. It seems like there is still a very slight leak on the passenger side but now mainly on the driver's side. I think the gasket might have been either burned up a bith or ruined because of the massive leak i had for a while. I gave it another try in the driveway but still didn't get rid of it. I'm going to try one more time and then give up and live with it