Thumping noise from under car when accelerating/shifting
#1
Burning Brakes
Thread Starter
Thumping noise from under car when accelerating/shifting
I just had my rubber-centered clutch replaced on my '87 944S with a Sachs spring-centered clutch. The associated bearings, rear main seal, etc were all replaced at the same time.
Since the replacement, any hard accelleration/decelleration while slipping the clutch (i.e. quick starts, hard upshift or downshift) produces a rapid "thump thump thump" noise from under the car until the clutch is fully engaged...
My thoughts are either:
o bad tranny mount
o torque tube bearings
o Exahust system moving
Any ideas or BDTD?
Thanks,
Since the replacement, any hard accelleration/decelleration while slipping the clutch (i.e. quick starts, hard upshift or downshift) produces a rapid "thump thump thump" noise from under the car until the clutch is fully engaged...
My thoughts are either:
o bad tranny mount
o torque tube bearings
o Exahust system moving
Any ideas or BDTD?
Thanks,
#2
Burning Brakes
Join Date: May 2002
Location: Monterey, MA
Posts: 824
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Check out these two posts - there's some good info in them, just read the symptoms everyone discusses.
Let me know what you learn as I'm currently figuring this out as well!
Links:
<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007711" target="_blank">http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007711</a>
<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007755" target="_blank">http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007755</a>
Let me know what you learn as I'm currently figuring this out as well!
Links:
<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007711" target="_blank">http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007711</a>
<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007755" target="_blank">http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=15&t=007755</a>