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1999 GMC Sierra 1500 SL 5.3L Mode Selection
Posted to GM HVAC on 10/3/2001 3 Replies

The vehicle actually has a 5.3 L engine. Customer has owned the truck since 5000 miles and this problem just recently happened. We went throught the test proceedures as listed in alldata. Everything pointed to the control module, so we replaced with no improve...

3 Replies Received (View Replies)

  Related Documents & Media  1999 GMC Sierra 1500 SL

 
Message Closed w/Summary

car Vehicle Data

1999 GMC Sierra 1500 SL

VIN 1GTEK19T7X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedMode Selection
ConditionsStuck in Defrost
Message Closed w/Summary

car Vehicle Data

1999 GMC Sierra 1500 SL

VIN 1GTEK19T7X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedMode Selection
ConditionsStuck in Defrost