Service VME - 4T65E Input and Third Pawl Clutch Click Type Noise When Overrunning (Hand Held) - check gear MN3 MN7 M15 M76 operation tick transmission turn

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Transmission Input and Third Pawl Clutch Click Type Noise when Overrunning Hand Held. 2003-2004 Aztek, Bonneville, Lesabre, Park Avenue, Grand Prix, Impala, Monte Carlo, Century, Regal, Rendezvous, Venture, Silhouette, Montana and with 4T65E RPO Codes MN3, MN7, M15, M76 transmissions.

It has been determined that some technicians are replacing the Input and Third Pawl clutch for a clicking noise when servicing the transmission. It is a normal characteristic of a clicking type noise when hand rotating the Input and third pawl clutch# 727, 728 in SI Document ID number 898954. This Input and Third Pawl clutch cannot be disassembled as it has pins that are peened to the race. When diagnosing this pawl clutch on the bench, as the inner race is rotated, you will hear an audible clicking noise. Do not replace the Input and Third Pawl clutch for a click noise, as the noise is not audible when the part is installed in the transmission.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.