6 replies to this topic

[kinetic]

96 850

This is a continuing problem regarding a sound my 850 makes on acceleration at any speed. The car sounds like a tractor, backhoe, grader etc... I have had the muffler checked it's fine, no CEL light, TB and IAC have been cleaned. Thel plugs, and MAF have been replaced. I am at a loss with the solution to this problem. Any ideas would be helpful.

[kinetic]

hmmm interesting-haven't heard that explaination yet. Given your explaination, would the sound be at or forward of the gear shift? The sound I hear eminates from just under the console where the the tranny meets at the engine compartment.

[kenk]

check the flex joint, could be the metal piece has come loose, maybe manifold seals?

[Flyby]

If this is an exhaust sound, and not a mechanical sound, no big deal. I know you had the muffler checked, but if the sound is coming from under your console, you need to have the whole exhaust checked. Get it up on a lift and look for black spots on your exhaust. Another way my buddy found out he had a leak was feeling around on the floor. When he found a hotspot, he knew there was a hole on the non-visible side of the exhaust.
It really sounds like you just have a leak in your exhaust, do you remember bottoming out anywhere? Could have knocked your exhaust.

anyway, just my $.02

Nat

[kinetic]

I dont'recall any bottoming out-I did notice the gruff engine sound after my Indie replaced the bottom rear engine mount- could he have dislodged the exhaust components from the engine?

[96DTM850]

rod knock??? spun a bearing??? that'll be all bad.