intermittent automatic trans problem


Asked by Mar 06, 2017 at 06:23 AM about the 2005 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

My 2005 Buick Le sabre sometimes does a "jerk" when accelerating from stop.
  Manual shifting to # 1 ( low ) position prevents this from happening. No codes are set on the CPU .  After the occasional jerk, all shifting, including downshift work great.  Four different trans repair shops are unable to diagnose the problem.  The car has 90, 000 miles on the odometer. Trans has proper amount of fluid.  This has been happening about 7 months, a few weeks after I purchased the car with 74,500 miles on odometer. This jerk has happened as much as 12 times during a 50 mile trip and no jerk for as much as 3 - 4 weeks time.  If accelerating very very slow from stop it does not jerk.     Last fall it was driven on a 1150 mile round trip vacation and only jerked  3 ( three ) times.  Am I the only Buick owner to have ever had this strange problem ?
thanks: Ted P.

2 Answers


My old Park Avenue did this, replaced the shift solenoids and it went away, it is a rather difficult job and with 90K on the tranny it is possible that they may find other internal damage when it is opened up. So just be prepared for bad news when they start. It just seems odd to me that the shops could not find the problem, this is a fairly common problem.

1 of 1 people found this helpful.

My Buick le Sabre had the same problem. It was a loose ground wire.

2 of 2 people found this helpful.

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