NEW WIRING HARNESS AND PRESSURE SWITCHES

MODELS/YEARS 1990 CUTLASS CIERA, CUTLASS SUPREME, EIGHTY-EIGHT, NINETY-EIGHT, TORONADO EQUIPPED WITH HYDRA-MATIC 4T60 (THM440-T4) TRANSAXLE (RPO-ME9)

BULLETIN COVERS:

The 2nd, 3rd and 4th clutch circuit pressure switches will have "button-headed" wire connectors instead of blade type connectors for easier assembly at the transaxle assembly plant and to reduce the chance of the connectors working loose. This change also requires new wiring harnesses. (See Figures 1, and 2).

DATE OF PRODUCTION CHANGE:

Starting September 6, 1989 (Julian Date 249) some HYDRA-MATIC 4T60 (THM 440-T4) transaxles built using the new pressure switches and wiring harnesses. Beginning in early November, 1989, all models have the new pressure switches and wiring harnesses.

SERVICE PARTS INFORMATION:

Listed below are the service part numbers for the new pressure switches and wiring harnesses.

The new pressure switches and wiring harnesses are available for service.

Model Part Number Description Year Model Usage ----------- ----------- ---- ----------- 12096136 Harness Assembly, Wiring 1990 BHH, BJH, BPH, BWH, LAH, LCH, LMH, LNH, YKH, YLH

12096137 Harness Assembly, Wiring 1990 BAH, BDH, BFH, BMH,

8668271 Clip, Wire Conduit (TCC) 1990 All

8668707 Switch Assembly - Pressure 1990 BAH, BDH, BFH, BHH, (4th Clutch) (N.C.) BJH, BMH, BPH, BWH, LAH, LCH, LMH, LNH, YKH, YLH

8668707 Switch Assembly - Pressure 1990 BAH, BDH, BFH, BHH, (3rd Clutch) (N.C.) BJH, BMH, BPH, BWH, LAH, LCH, LMH, LNH, YKH, YLH

8668707 Switch Assembly - Pressure 1990 BHH, BJH, BPH, BWH, (2nd Clutch) (N.C.) LAH, LCH, LMH, LNH, YKH, YLH

Parts are currently available from GMSPO.

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.