HARSH SHIFT-POSSIBLE INCORRECT TRANS. INSTALLED AT FACTORY. Chevrolet Celebrity 1987

For 1990-2009 cars

# HARSH SHIFT-POSSIBLE INCORRECT TRANS. INSTALLED AT FACTORY

#### Bulletin Covers:

Harsh shifts in a 1987 2.8 litre fuel-injected Standard Pontiac 6000 or Pontiac 6000 L/E may be caused by the installation of a 7CBH model transaxle (instead of a 7CAH model transaxle) at the vehicle assembly plant. (Refer to Figure 1).

DATE OF CHANGE:

1987 vehicles built prior to December 1, 1986 may be equipped with a 7CBH transaxlie which is calibrated for firmer shifts and used in the SE and STE models only.

#### SERVICE ACTION:

After verifying the vehicle and engine application as described above, replace the 7CBH model transaxle with a 7CAH model transaxle.

SERVICE PARTS INFORMATION:

A 1987 THM 440-T4 Transaxle Assembly, 7CAH model, is available from General Motors Service Parts by ordering part #8662023 (7CAH).

SERVICE MANUAL REFERENCE:

Refer to the appropriate 1987 Service Manual On-Car Service Section (Section 7Al), for transaxle replacement information.

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.