BUZZ FELT IN ACC. PEDAL NEW SPACER PLATE P/N

VEHICLES AFFECTED: 1985-86 THM 125C Transmissions

A 1985 or 1986 THM 125C transaxle built prior to october 29, 1985 (Julian date 302) in Windsor, or prior to December 9, 1985 (Julian date 343) in Ypsilanti, may exhibit a throttle valve buzz condition. Refer to the following list for model/year applications. All of the models listed are 2.8L engine applications. Refer to Figure 1 for transaxle identification information.

Beginning on the listed dates, a new valve body to case cover spacer plate was introduced to eliminate the buzz by reducing the diameter of the 1-2 accumulator valve feedback orifice.

To correct a throttle valve buzz condition for models built before these dates, replace the original valve body to case cover spacer plate with the new spacer plate (P/N 8660569).

Models: 1985: CD, CE, CJ, CK, CL, CT, CX, CU, HS, HV

1986: CDC, CJC, CSC, CTC, CUC, CXC

Refer to appropriate Service Manual for removal and installation procedures.

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.