For 1990-2009 cars

# DELAYED PARK/NEUTRAL TO DRIVE SHIFT ENGAGEMENT

#### MODELS AFFECTED: 1982-1989 RWD DE VILLES AND BROUGHAMS

This bulletin supersedes bulletin T-88-6, Group 7, which should be discarded.

1982-1986 Harsh and/or Delayed Engagement: ----------------------------------------- Some 1982-1986 RWD DeVilles and Broughams with THM 200-4R transmissions built before 1986 Julian Date 115 may experience a condition of harsh and/or delayed park/neutral-to-drive engagement. To repair this condition install a new neutral-to-drive shift package, P/N 8639970.

#### 1986-1989 Delayed Engagement:

Some 1986-1989 Broughams with THM 200-4R transmissions built after 1986 Julian Date 114 and before 1989 Julian Date 237 may experience a condition of delayed park/neutral-to-drive engagement. To repair this condition use the following procedure:

1. Check for proper fluid level.

2. If OK, check the forward clutch and feed circuits for:

Cut or overlapping Teflon seal rings on forward clutch shaft. Cracked or broken forward clutch piston. Cut or rolled forward clutch piston seals. Porosity in the center support.

3. If none of the above are found to be the cause, install a revised forward clutch housing assembly, P/N 8639969.

WARRANTY INFORMATION VEHICLE SERIES Operation Operation Description Number C D E J K V

Direct Clutch, Forward Clutch, K7200 3.5 Intermediate Band-Replace

Inc: Cooler line flush and setting of TV cable. Inc: Check overdrive unit, front unit, and rear unit end play. Add: To recondition 3.0 transmission completely.

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.