× 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 GMC Sierra 2500 HD SLE 6.0L TCC apply
Posted to GM Transmission on 6/15/2011 15 Replies

Hi Everyone,

This vehicle has the 4L80E and came in with code 1870: Trans component slippage. I test drove the vehicle and the trans shifts properly with no slippage but the TCC doesn't apply. My scanner indicates the TCC PWM duty cycle climbs when TCC should...

15 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 2500 HD SLE

VIN 1GTHK29U91
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedTCC Apply
ConditionsNo Lockup
Misc.No TCC Apply
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 2500 HD SLE

VIN 1GTHK29U91
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedTCC Apply
ConditionsNo Lockup
Misc.No TCC Apply