For 1990-2009 cars

# LOW BRAKE PEDAL DURING BRAKING (NEW PARTS MAY REPAIR -P/N)

BRAKE PEDAL FEEL

#### VEHICLES AFFECTED: 1985-88 "C" CARLINES (BASE BRAKES ONLY) ------------------ 1986-88 "H" CARLINES (BASE BRAKES ONLY)

A production change has been made to the brake master cylinder, pedal, and brake pads, to address brake pedal feel. If comments are received concerning the height of the brake pedal during braking, the following should be checked:

1. Excessive Brake Lining wear.

2. Rear brake, parking brake adjustment.

3. Brake fluid level.

4. Brake system bleed.

If these items are satisfactory, the following can be done to address brake pedal feel.

Install the following (1985-86 "C" Cars; 1986 "H" Cars)

1. Brake Master Cylinder, Part Number 18011049 (less proportioning valves).

2. Jumper harness, Part Number 18011052.

3. Brake Pedal, Part Number 25533603.

4. Brake pads, Part Number 18010357 (on vehicles that have not had these pads previously installed).

Install the following: (1987 "C" and "H" Cars)

1. Brake Pedal, Part Number 25533603.

On 1988 "C" and "H" Cars built prior to the following VIN, install Brake Pedal Part Number as indicated:

Buick "H" JH439295 Buick "C" J1619455

Willow Run Pontiac "H" JW225240 Olds "H" JW317683

Wentzville Olds "H" J1820286 Olds "C" J1308850

Orion Olds "C" J4308021 Cad "C" J4223769

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.