strange engine noise

9 messages, Last post on Feb 24, 2009 at 9:46 AM

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#8 of 9 Re: strange engine noise [helpmeplease3] by stephen987 Feb 24, 2009 (9:45 am)
Replying to: helpmeplease3 (Feb 24, 2009 9:29 am) I'd also have someone check the motor mounts.
#9 of 9 Re: strange engine noise [helpmeplease3] by imidazol97 Feb 24, 2009 (9:46 am)
Replying to: helpmeplease3 (Feb 24, 2009 9:29 am) The hot gases escaping around the seal may, may heat up the wall between the passenger compartment and the engine if the leakage is toward that and is great enough. You can feel the leakage with you hand when you move it closer to the connection while motor is running--but it is hot back in there. It's a fairly easy repair for a good mechanic--two bolts that hold the two parts together. Put in the donut which is probably $15-25 at most and maybe less, and bolt it back together. The donut is $7.95 at autozone. It's the exhaust flange seal, if I have my parts straight. You could also have leakage at a crack in the manifold that's bolted onto the motor if it's been damaged. Listening while the motor is running under load will let you locate the source of the sound while the hood's up and someone gently brakes and gives the motor some gas.