For 1990-2009 cars

# STEERING WHEEL VIBRATION AT IDLE DAMPNER MAY REPAIR P/N

STEERING WHEEL VIBRATION

#### VEHICLES AFFECTED: 1987 CALAIS WITH 2.5L ENGINES (L68-VIN U), ------------------ AUTOMATIC TRANSAXLE BASE OR UPLEVEL STRG WHEEL (NOT LEATHER WRAPPED SPORT STRG WHEEL)

Some customers may comment about steering wheel vibration while the vehicle is in gear, stopped, with the engine operating at idle speed (example: stop- ped at a traffic light).

This condition may be addressed by installing a steering wheel dampener, part number 22535703, and a longer horn lead, part number 9769448, as follows:

1. Disconnect the negative battery cable.

2. Remove the two (2) screws which retain the steering wheel horn pad.

3. Disengage the horn pad from the steering wheel (the horn lead will still be connected).

4. Disconnect the horn lead from the cam tower (in the column assembly) and from the horn pad. Remove the horn pad assembly.

5. Remove the retainer and steering wheel nut from the steering shaft.

6. Position the dampener assembly on the steering shaft, install the steering wheel nut, and tighten to 41 Nm (30 lbs. ft. ). Reinstall the steering wheel nut retainer (Notice: This retainer MUST be reinstalled). See Figure 1

#### NOTICE: Before reinstalling the horn pad, a portion of the plastic reinforcing ridges on the backside of the horn pad must be removed, as shown in Figure 1. This can be accomplished using a small rotary grinder or other suitable tool.

7. Connect the new (longer) horn lead to the steering pad, and then to the cam tower in the column assembly.

8. Position the horn pad to the steering wheel and install the 2 screws to secure the pad.

9. Connect the negative battery cable and check for proper horn function.

This dampener is now standard on 1988 Cutlass Calais models equipped with 4- cylinder engines and automatic transaxles (except vehicles equipped with leather-wrapped sport wheel).

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.