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1999 GMC K3500 Sierra SL 7.4L 2nd Gear
Posted to GM Transmission on 12/20/2011 7 Replies

truck will start off in first and shift fine for about 5 min then it looses controll of the epc solnoid it drops off to 0 percent and 0 amps on my scanner . it then starts shifting hard and neuturals out in 2nd causing it to down shift into 1st again . if you ...

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  Related Documents & Media  1999 GMC K3500 Sierra SL

 
Message Closed w/Summary

car Vehicle Data

1999 GMC K3500 Sierra SL

VIN 1GDJK34J8X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
Affected2nd Gear
ConditionsDown Shifts to First
Misc.Flat Bed
Message Closed w/Summary

car Vehicle Data

1999 GMC K3500 Sierra SL

VIN 1GDJK34J8X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
Affected2nd Gear
ConditionsDown Shifts to First
Misc.Flat Bed