a few months ago I noticed a "roaring" noise when I would drive in rain. came from front right side of car('92 240 sedan). I have new Michelin tires and that's not the source. Just had my wheel bearing checked and he said it was "tight." Friday I started having a more intense noise. I had my exhaust checked and found two holes in muffler..replaced. Now after the car drives for about a mile I am getting a "roaring" noise that seems to be coming from right front of car. Also, when I rev the motor sometimes it backfires and there is a knocking that seems to be hitting under the driver's side that I can feel. Very strange.It does not occur when I first crank the car but becomes worse after a mile or so. Sounds like a hole in muffler but I know it can be. I've looked under hood and car but can't find anything out of the ordinary. Sorry for the long post. Any suggestions? thanks. JB
engine or exhaust..roaring noise
Jan 09, 2005
3 Replies
"JLB @hotmail.com>" a few months ago I noticed a "roaring" noise when I would drive in rain.
Feel around the exhaust manifold when you first start the car, do it when it's cold and be careful as it gets hot surprisingly quickly. The idea is to feel for exhaust leaking around the gaskets or through a crack in the manifold.
A method I have used is to connect a shop vacuum backward (so it blows air at low pressure) to the tailpipe and feel for the air coming out. Mike F pointed out there is a potential for getting dirt in the exhaust - could be bad for catalysts and other sensitive stuff - so be sure the vac is empty and let it exhaust the residual dust into the air for a minute before connecting it.
Mike
thanks for the information! JB "JLB @hotmail.com>" a few months ago I noticed a "roaring" noise when I would drive in rain.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required