Front Differential problem?
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 1,124
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From: Beaufort, SC
Front Differential problem?
A friend with a 2006 Tiptronic has a mid-pitch noise coming from the front end of his car. The noise gets louder with speed. Wheel bearings have been checked. Is there a way to definitively diagnose a problem with the front diff?
Rocky Mountain High
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Rennlist Member
Joined: Aug 2007
Posts: 19,497
Likes: 2,802
From: Kolorado
That question should be posted on the 997 forum. The 996 utilizes a mechanical AWD system with a viscous coupling. The 997 utilizes a computer controlled, electronic AWD system. I don't know how the 997 differential compares to the 996 differential.
FWIW, my front diff started making noise before it failed. It started as a subtle gear whine and eventually became louder, almost sounding like a slipping belt. Eventually it began to leak just prior to having it rebuilt.
FWIW, my front diff started making noise before it failed. It started as a subtle gear whine and eventually became louder, almost sounding like a slipping belt. Eventually it began to leak just prior to having it rebuilt.
Drifting
Joined: Sep 2001
Posts: 2,467
Likes: 16
From: redmond wa
That question should be posted on the 997 forum. The 996 utilizes a mechanical AWD system with a viscous coupling. The 997 utilizes a computer controlled, electronic AWD system. I don't know how the 997 differential compares to the 996 differential.
FWIW, my front diff started making noise before it failed. It started as a subtle gear whine and eventually became louder, almost sounding like a slipping belt. Eventually it began to leak just prior to having it rebuilt.
FWIW, my front diff started making noise before it failed. It started as a subtle gear whine and eventually became louder, almost sounding like a slipping belt. Eventually it began to leak just prior to having it rebuilt.