HARSH 1-2 SHIFT 125C TRANSMISSION

Some 1983 THM 125C transmission, CC model only, may exhibit harsh 1-2 shifts.

Beginning August 5, 1983 all CC model THM 125 transmissions were produced with a new control valve assembly that has a new 1-2 accumulator valve, spring and bushing. The new 1-2 accumulator valve, spring and bushing will soften the 1-2 shift.

When servicing any 1983 CC model THM 125C transmission for a harsh 1-2 shift condition, order service package number 8653944 which contains:

1 - Valve, 1-2 Accumulator 1 - Spring, 1-2 Accumulator Valve 1 - Bushing, 1-2 Accumulator Valve

Refer to your service manual for the proper disassembly and reassembly of the 1-2 accumulator valve train.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.