weird clunk on shutdown

specops_SC

Registered User
when i turn off my car i hear a knocking sound coming from the engine. almost like something getting hit. it does it cold or warm. i havent noticed any vibrations when it does it. the car got new motor mounts about a year ago and i doubt they're going out. i just want to know if this is something that could be a problem later on.
 
I'll bet it's the supercharger.

Or more specifically, the nose-drive-to-gear-fingers have some free-play and when the engine stops it rocks back a bit and you hear a short, single, knock. My XR7 has done that for well over 100,000 miles and so far no issues with the supercharger.
 
yeah, thats pretty much what mine does.

digitalchaos:
the motor mounts were replaced with stock mounts by the previous owner and had a shop do the work. the engine is pretty smooth though. no significant vibration.

i'll double check the supercharger thing, but im pretty sure thats it. thanks guys..
 
Back
Top