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1997 GMC C3500 Sierra SL 7.4L Lock Up Convertor
Posted to GM Transmission on 1/14/2004 8 Replies

No convertor lockup,scan data duty cycle stays at 0%. If you command lock up with TECH2 duty cycles from 0 to 97% and engine rpm drops. All scan data, including TPS appears normal and there are no codes. Note: Odometer only increments .9 for every milemarker. ...

8 Replies Received (View Replies)

  Related Documents & Media  1997 GMC C3500 Sierra SL

 
Message Closed w/Summary

car Vehicle Data

1997 GMC C3500 Sierra SL

VIN 1GTHC39J9V
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedLock Up Convertor
ConditionsNo Lockup
Message Closed w/Summary

car Vehicle Data

1997 GMC C3500 Sierra SL

VIN 1GTHC39J9V
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedLock Up Convertor
ConditionsNo Lockup