Andy13186

I thought i had an exhaust leak in my H pipe by the catalytic converters because it hissed while cold around there, its like intermittent hissing. louder when my foot is off the clutch, loudest when accellerating when its cold. The sound quiets down and goes away when the car is fully warmed up, but its really annoying and pretty loud hissing that gets ppls attention when its cold.

I took it to an exhaust shop and they checked for leaks with a mechanics stethoscope in my exhaust and the guy didnt find any and said he thought it was coming from the transmission?

He put the end of it(stethosope) in the hole in the bottom of the transmission and thought it was coming from there. What do you guys think it could be? my transmission works fine from what i could tell but what would cause it to hiss when cold?

Andy13186

its near or part of the transmission according to the guy at the exhaust shop.. what part would hiss/whine while cold that is affected by the clutch

JayC

Sounds like the throw-out bearing to me.

Andy13186

might be, i dont know but it hisses every time the car is cold and clutch is up, in gear or in neutral. is it normal for a TOB noise to stop when it gets warmed up?


also how much labor would it cost to get a new one put in?

Andy13186

anyone else have any ideas? im going to take it to a different shop soon and see what they have to say about it


hissing loudest when foot is off the clutch and when the car is cold

Andy13186

last bump

JayC

Have you tried to adjust the clutch?

Andy13186

yea ive pushed that tab and it has readjusted and seems to be in perfect adjustment and have no slip.

Andy13186

still have this hiss.. it always goes away once the car has been running for like 10 mins

jmsjags

my car's been hissing lately too. only does it when i shift the car to neutral to slow down or when i slow down while still in gear. doesn't do it when i accelerate. i'm thinking my throw out bearing might be going bad too so let me know how yours turns out