2008 Cadillac STS TSB 10137776

Cadillac TSB #01-07-30-042H

2008 Cadillac STS

TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

Summary
This information was created to inform the technician that the 2-3 upshift and the 3-2 downshift clunk is caused by the releasing of the 2-4 band and application of the 3-4 clutch assembly during an upshift. Also during a 3-2 downshift, the releasing of the 3-4 clutch during the application of the 2-4 band, can cause torque reversal down the output shaft creating a clunk. This is a normal condition.

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Date Published
JAN 14, 2014
NHTSA TSB #
10137776
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