ACCEL. PEDAL BUZZ/VIBRATION RESECURE ACCELERATOR CABLE

Model and Year: 1990 W CAR WITH 3.1L (VIN CODE T) ENGINE

Some 1990 "W" cars with 3.1L engines may exhibit an accelerator pedal buzz/vibration condition. This buzz/vibration will be felt through the driver's foot and will be most noticeable while accelerating at higher engine speeds.

The buzz/vibration is due to engine vibrations being transmitted from the accelerator cable support bracket to the accelerator cable and back through to the pedal. To repair this condition, it will be necessary to remove the accelerator cable from its support bracket and resecure it outside of the support bracket, per the following figures and instructions.

1. Remove support bracket cover.

2. Remove T.V. and accelerator cables from support bracket.

3. Reinstall T.V. cable in its original position in the bracket and reinstall the bracket cover.

4. Using (2) black plastic tie-wraps secure the accelerator cable to the T.V. cable at the two locations shown in Figure # 2. Clip excess length off tie-wraps.

5. Check routing of accelerator and T.V. cables to ensure that there is ample clearance between the cables and the throttle linkage. The accelerator cable must be routed on the outboard side of the heater hose (reference the attached figures) to ensure proper clearance.

CAUTION:

Throttle cable interference with the throttle linkage during vehicle operation could result in loss of accelerator control.

Labor Operation Number: T1572

Labor Time: 0.2 Hours

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.