Regal V6-231 3.8L Turbo VIN 7 FI (1986)
Brake Proportioning/Combination Valve: All Technical Service Bulletins
Recall - Brake Combination Valve Replacement
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
