Transmission thump

Tiny
ASJMLJ
  • MEMBER
  • 2006 CADILLAC CTS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
I hear a thump when my Cadillac CTS shifts from first to second (automatic). What could be causing this
Tuesday, January 18th, 2011 AT 12:15 AM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
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.
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Monday, January 31st, 2011 AT 4:45 AM

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