Having problems with your 1994 Chevrolet C2500 ?

Unkown 4l60e installed code 1860?

\015 Installed used tranny, works great but engine light is on, code 1860 and hard shift on all gears including reverse, mechanic says that this tranny has a shift kit installed. is this possible? i still have warranty on it but do not know if this is true? or if tranny is going bad. mechanic said that torque converter was/look new. 1996 4x4 5.7 suburban\015 Posted / edited by AnonymousUser on : 02-12-2019

Answers :

PO-1860 IS TORQUE CONVERTER CLUTCH PULSE WIDTH MODULATOR SOLENOID CIRCUIT.WHAT ITS SAYING THAT TCC SOLENOID IS DAMAGE OR IT HAS FAIL.SOLENOID IS OPEN NOT WORKING.
Try to adjust the clutch.
Repair Help & Product Troubleshooting for 1994 Chevrolet C2500

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