Recall - Brake Combination Valve Replacement: Overview

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Model Year: 1987

Bulletin No.: 87-C-13

File in Group: 5

Number: 14

Date: July, '90


SUBJECT:
POWERMASTER BRAKE SYSTEM

MODELS AFFECTED:
1985 REGAL 3.8L TURBO (ENGINE VIN CODE 9)
AND RPO LM9 BRAKES 1986 - 1987 REGAL 3.8L TURBO (ENGINE VIN CODE 7)
1986 LESABRE AND ELECTRA ESTATE WAGON


General Motors has determined that certain 1985, 1986, and 1987 Regals and 1986 LeSabre and Electra Estate Wagons with Powermaster brake systems were built with combination valves and pressure switches which may become faulty. If left uncorrected, these vehicles may experience a "hard brake pedal" or "increased brake pedal travel". These conditions may be caused by a Cast Iron combination valve (Estate Wagon models only) allowing air to enter the brake system or by a pressure switch on the Powermaster Brake Assembly leaking brake fluid.

To prevent either of the above conditions from occurring, vehicles will be inspected and those Estate Wagons equipped with the Cast Iron combination valve will receive a new Brass combination valve. Also, pressure switches will be inspected and replaced, if necessary.

VEHICLES INVOLVED

Involved are certain 1985, 1986 and 1987 Regal 3.8L Turbo Engine Coupes and 1986 LeSabre and Electra Estate Wagons with Powermaster brake system built within the following VIN breakpoints.
THROUGH AND
YEAR MODEL PLANT FROM INCLUDING

1985 Regal Turbo Coupe Pontiac FP400004 FP427709
1986 Regal Turbo Coupe Pontiac GP201039 GP459261
1986 Estate Wagon Fairfax GX400001 GX418126
1987 Regal Turbo Coupe Pontiac HP400001 HP465289