Mechanics

TRANSMISSION THUMP

2006 Cadillac CTS • 6 cylinder 2WD Automatic • 50,000 miles

I hear a thump when my Cadillac CTS shifts from first to second (automatic). What could be causing this
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Asjmlj
January 18, 2011.



Does it seem to be abnormal? Not knowing the severity of what your hearing, some 1-2 clunk noise was characteristic. You can check the front support bushing on the rear differential, it does split and can cause some extra clunk.

Factoryjack
Jan 31, 2011.