1993 CHEVROLET K3500 PICKUP, 4L80-E

By: Steve Smith On: 04/19/14

5 comments

Vehicle

1993 CHEVROLET K3500 PICKUP, 4L80-E

Vehicle Information

185000 Miles
7.4L L
8
Automatic
4 X 4
Other

Problem Information

No TCC apply
always
did not overhaul
Diagnostics indicate failed ECM. I have replaced the ECM Twice and Installed a new prom.
39 and 68

Problem

ECM is not grounding tcc circuit when commanded.
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Vehicle Data
1993 CHEVROLET K3500 PICKUP

Mileage 185000 Miles
Engine 7.4L L
Trans Automatic
Trans Type 4L80-E
Drive 4 X 4
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