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1999 Pontiac Montana 3.4L Harsh Up Shift
Posted to GM Transmission on 6/11/2008 3 Replies

Good day people. I have this 1999 Pont. Montana that will have a very, very harsh up shift intermittently. This condition will happen once or twis in every two weeks. This condition was there before the transmission was rebuild. When it happens it will keep sl...

3 Replies Received (View Replies)

  Related Documents & Media  1999 Pontiac Montana

 
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Montana

VIN 1GMDX03E4X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedHarsh Up Shift
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Montana

VIN 1GMDX03E4X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedHarsh Up Shift