CAMPAIGN:BRAKE PEDAL TRAVEL INCORRECT B/P BRACKET

Models/Years 1984 88 Models with Hydroboost Brakes

Condition

General Motors has determined that a defect which relates to motor vehicle safety exists in some early production 1984 Oldsmobile 88 models equipped with Hydroboost brake systems. The vehicles have been assembled with an incorrect brake pedal bracket. This causes the brake pedal to be located in a lower than normal position. This could prevent sufficient pedal travel to fully apply the brakes if a loss of brake fluid were to occur in either half of the dual brake system. Loss of full brake capability at a time when minimum stopping distance is required could result in a vehicle crash without prior warning.

Vehicles Involved

Involved are certain early production 1984 Oldsmobile 88 models equipped with Hydroboost brake system from the start of production through the following serial number.

Assembly Plant Serial Number -------------- ------------- Detroit E9709271

Dealer Action

To reduce the possibility of this occurring on vehicles involved, the brake pedal bracket is to be replaced.

Dealers are to service all vehicles subject to this campaign at no charge to the owner, regardless of mileage, age of vehicle, or ownership, from this time forward.

Whenever a vehicle subject to this campaign is taken into your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.

Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.

Service Procedure

To replace the brake pedal bracket use the following procedure and refer to the instructions in Figure 1 for torque specifications and proper assembly of the components.

1. Install seat and fender covers.

2. Disconnect negative battery cables.

3. Remove sound insulator (hush panel) under left side of instrument panel.

4. Disconnect the parking brake release cable along with the ashtray light bulb assembly and then remove lower I.P. trim panel.

5. Remove the lower steering column trim cover.

6. Disconnect the brake light and cruise control switches (if equipped).

7. Remove the four (4) brake pedal bracket nuts and disconnect the wiring harness retaining clip attached to the bracket.

8. Remove the steering column bolts and lower the steering column to gain access to upper part of brake pedal bracket.

Note: Care should be taken so as not to damage the shift indicator cable when lowering the steering column. Disconnect the cable if required.

9. Remove upper steering column bracket bolt and slide bracket out of the way.

10. Remove the upper brake pedal bracket bolt and disconnect the Hydroboost push rod from the brake pedal.

11. With bracket removed disconnect brake pedal and install brake pedal in new bracket, part number 1262965.

12. To install the new brake pedal bracket reverse the steps in this procedure.

Note: When installing the brake light switch and cruise control switch (if equipped) be sure thye are properly adjusted.

13. Install a campaign identification label on the fan shroud as follows:

Each vehicle modified in accordance with the instructions outlined herein will require a Campaign Identification Label. Each label provides a space to include the Campaign Number, the five (5) digit Dealer Code of the dealer performing the campaign service, and the date vehicle was campaigned. This information may be inserted with a typewriter or ballpoint pen. When installing label, clean the surface of the fan shroud and apply the Campaign Label.

Parts Information

Brake pedal bracket, part number 1262965, is to be obtained from WDDGM. When ordering parts dealers should keep in mind that there are only 139 vehicles involved in this campaign.

To ensure this part will be obtained as soon as possible, it should be ordered from GM Parts (WDDGM) on a C.I.O. order with NO special instruction code, but order on an advise code (2).

Warranty Information

Part Failure Labor Labor Operation Number Code Operation Hours ---------- ------ ---- ---------- -----

Replace brake 1262965 96 V1990 .7 hrs. pedal bracket.

.1 hour for clerical administration may be added to the above operation.

Part will be credited at dealer net, plus 30% dealer handling allowance.

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.