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2001 Chevrolet Silverado 2500 HD 8.1L 2-3 Upshift
Posted to GM Transmission on 7/23/2008 4 Replies

I have an unusual Allison problem. This only occurs when the customer has his big 5th wheel camper hooked up. When accelerating in either regular drive or tow haul mode it shifts good until it goes to make the 2-3 upshift. At that time it pauses, clunks real b...

4 Replies Received (View Replies)

  Related Documents & Media  2001 Chevrolet Silverado 2500 HD

 
Message Closed w/FIX

car Vehicle Data

2001 Chevrolet Silverado 2500 HD

VIN 1GCHK29G71
Engine8.1 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
Affected2-3 Upshift
ConditionsPauses, Clunks, Defaults to Three
Misc.Allison Transmission
Message Closed w/FIX

car Vehicle Data

2001 Chevrolet Silverado 2500 HD

VIN 1GCHK29G71
Engine8.1 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
Affected2-3 Upshift
ConditionsPauses, Clunks, Defaults to Three
Misc.Allison Transmission