Quote:
Originally Posted by JFP in PA
I know you say it goes away with the belt off, but check your heat shields on the exhaust system, we see a lot of cars with strange rattling noise on acceleration that were traced to loose shields, and once secured, the sounds vanish.
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Doesn't sound like loose heat shield sounds that I've heard before, but that doesn't mean it couldn't be that. I suppose the reduced stress on the engine when the belt is removed might give rise to less torque-related movement, less vibration overall, and might account for the sound disappearing? I'll look for a possible culprit in that area, though it could be a challenge since, as I mentioned, it doesn't seem to happen except when the car is moving. (Might be tough to replicate on jack stands!)
If I see anything that has any possibility of being the problem, I'll wedge something in there, take it for a short spin and see if the noise is gone. Thanks!