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2001 GMC Sierra 2500 HD SL 6.6L 2nd to 1st Gear Downshift
Posted to GM Transmission on 10/16/2009 6 Replies

When the truck slows down to almost a complete stop or turns a corner and shifts from 2nd to 1st, it neutrals (flares/slips) and bangs into low gear. The rest of the gears are fine.

Any suggestions?? Thanks, Chuck

6 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 1GTHK29191
Engine6.6 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI
Affected2nd to 1st Gear Downshift
ConditionsBangs
Misc.Allison 1000 Trans
Message Closed w/Summary

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GTHK29191
Engine6.6 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI
Affected2nd to 1st Gear Downshift
ConditionsBangs
Misc.Allison 1000 Trans