× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2001 Chevrolet Silverado 3500 6.6L shift
Posted to GM Transmission on 3/15/2007 4 Replies

Thanks in advance for any help on this one... I have an Allison equipped K3500 4WD dump truck that won't upshift on its own after it is hot. I can make it upshift with the Tech2. I have been monitoring the ign 1 and ign 0 fuses for power loss per tech bulletin...

4 Replies Received (View Replies)

  Related Documents & Media  2001 Chevrolet Silverado 3500

 
Message Closed w/Summary

car Vehicle Data

2001 Chevrolet Silverado 3500

VIN 1GBJK34161
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFI
AffectedShift
ConditionsNo Upshift
Misc.4WD Dump Body
Message Closed w/Summary

car Vehicle Data

2001 Chevrolet Silverado 3500

VIN 1GBJK34161
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFI
AffectedShift
ConditionsNo Upshift
Misc.4WD Dump Body