TCC - Engages at Incorrect Speed
Number: 83-I-23Section: VII
Date: Dec., 1982
Subject: TCC ENGAGES AT INCORRECT SPEED - ALL GAS ENGINES
TO: ALL CHEVROLET DEALERS
If a condition is encountered where the [1][2]torque converter clutch is engaging at the incorrect speed, be sure to check speedometer head magnet field plate for foreign material i.e.: grease, dirt, etc. Foreign material on the drum could change the signal to the ECM resulting in erratic TCC operation.