For 1990-2009 cars

# SQUAWK/MOAN NOISE DURING VISCOUS CONVERTER CLUTCH APPLY

#### SUBJECT: SQUAWK/MOAN NOISE DURING VISCOUS CONVERTER CLUTCH (VCC) APPLY

#### MODELS AFFECTED: 1991-1992 DE VILLES AND FLEETWOODS

This bulletin supersedes Service bulletin T-91-101 which should be discarded. This bulletin is being revised to include new parts and service procedures.

Some 1991-1992 DeVilles and Fleetwoods may experience a momentary squawk/moan noise when the VCC is applied.

This condition may be caused by a ground out of the transaxle cooler pipes at the cooler pipe clips where they attach to the lower tie bar.

To repair this condition install isolation kit, P/N 25614724. The isolation kit consists of two rubber grommets, two metal clips, and two screws.

To install the isolation kit use the following procedure:

1. Raise vehicle to gain access to cooler pipe clips attached to lower tie bar.

2. Unlatch both clips to release cooler pipes.

3. Remove clip attaching screws and clips.

4. Attach rubber grommets to cooler pipes in the same location as original clips.

5. Install metal clips over rubber grommets. Refer to Figure 1.

6. Attach clips to tie bar with screws provided in the kit. Torque to 5-7 Nm (4-5 lbs. ft.).

7. Lower vehicle.

Parts are currently available from GMSPO.

For warranty purposes use Labor Operation T5224 at.3 hour.

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.