2004 Buick Lesabre Transmission jumps

Tiny
KERMIITT
  • MEMBER
  • 2004 BUICK LESABRE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 139,000 MILES
When starting out going into first and second sometimes it shifts hard. It seems to do it after it warms up
Sunday, February 28th, 2010 AT 8:13 PM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Might be a shift solenoid issue, like it is getting sticky or something to that effect. You can try having the PCM scanned for trans codes, they wont always set a light if the trans is still working ie; shifting. Some GM trannies needed valve-body updates that had to do with harsh shifting, you might want to call a local trans shop and ask them about it.
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Tuesday, March 2nd, 2010 AT 8:29 AM

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