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2001 GMC Sierra 2500 HD SL 8.1L Valve body
Posted to GM Transmission on 7/5/2004 4 Replies

This truck has very low mileage and is driven to and from work(approx. 7 mile) daily. Upon initial start-up, no problem. After the engine gets to operating temp though, if re-started, a loud clunk is noticed in the valve body of the Allison 1000 trans. No DTC'...

4 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Sierra 2500 HD SL

 
Message Closed w/Summary

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GTHK29G91
Engine8.1 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
AffectedValve Body
ConditionsNoise
Message Closed w/Summary

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GTHK29G91
Engine8.1 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
AffectedValve Body
ConditionsNoise