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View Full Version : Please Help Strange rhytmical noise



jettaudiphile
02-03-2012, 10:09 PM
97 Jetta 2.0
There is a strange slapping or thumping noise coming from the engine bay, to the right of centre. It is not always present. Does not start until I am going at least forty km, and seems to be in sync with the speed of the wheels. Not the engine, as still present when coasting with the engine off. Sometimes, when going a lot faster it diminishes. Could it be a loose harmonic balancer or vibrational damper on the driveshaft? The noise is quite loud and rhytmical, although it may be slower than every wheel rotation.

ChicksFan
23-03-2012, 09:11 AM
Do you have an engine undertray? These can flap if broken or not fixed properly.