LIGHT BRAKE DRAG-may BE BRAKE SWITCH ADJUSTMENT

MODELS: 1989 S/T TRUCKS

Some vehicles may experience a condition of light brake drag while driving. These conditions have been found to be more noticeable on vehides which have an anti-lock brake system.

This may be caused by improper brake switch adjustment. If the brake switch is not adjusted properly, the switch may push on the brake pedal and cause the brake to remain partially applied.

If a vehide exhibits any of the above conditions, perform the following functional brake switch adjustment check:

The following steps should be used to check brake switch adjustment:

Service Procedure:

1. Depress the brake pedal and press the switch in until it is firmly seated in the dip.

Audible "clicks" can be heard as the threaded portion of the switch is pushed through the clip.

2. Pull the brake pedal against the pedal stop until the audible "click" can no longer be heard.

For stop lamp switch adjustments on vehicles repaired under warranty use:

Labor Op: T7945 LaborTime: .2Hr

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.