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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Buick Park Avenue car and truck
repair procedures including Buick engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your 1991 Buick Park Avenue automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1991 Buick Park Avenue
- 1991 Buick Park Avenue 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L
- 1991 Buick Park Avenue Ultra 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L
- 1991 Buick Park Avenue Ultra 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:1
BRAKE SERVICE PROCEDURES FOR 1991 Buick Park Avenue AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Buick Park Avenue cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> 1991 Bonneville, DeVille, Eighty Eight, Fleetwood, LeSabre, Ninety Eight & Park Avenue (Treves Type) -> SYSTEM COMPONENTS -> ELECTRONIC BRAKE CONTROL MODULE (EBCM) -> WHEEL SPEED SENSORS
Vehicle: 1991 Buick Park Avenue Ultra 3.8 V6 GAS
ELECTRONIC BRAKE CONTROL MODULE (EBCM)
The EBCM is a small control computer located under the trim panel on the lefthand side of passenger compartment on wagon models, and on the lefthand efficiency. Specific conditions causing illumination are the parking brake not fully released, low brake fluid and Bulb Test or Start positions of the ignition switch.
ELECTRONIC BRAKE CONTROL MODULE (EBCM)
The Electronic Brake Control Module (EBCM), is mounted in the passenger compartment and monitors the speed of each wheel and the electrical status of ...
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BRAKE SERVICE PROCEDURES FOR 1991 Buick Park Avenue AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Buick Park Avenue cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Type 5 -> REMOVAL
Vehicle: 1991 Buick Park Avenue 3.8 V6 GAS
- Raise and support vehicle.
- Mark relationship of wheel to axle flange, then remove wheel and tire assembly.
- Mark relationship of brake drum to axle flange, then remove drum.If brake drum is difficult to remove, back off parking brake cable adjustment, remove inspection hole plug from backing plate, insert screwdriver through hole and press in to push parking brake lever off stop.
- Using suitable tool, rem...
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BRAKE SERVICE PROCEDURES FOR 1991 Buick Park Avenue AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Buick Park Avenue cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> TESTING PROPORTIONING VALVE
Vehicle: 1991 Buick Park Avenue Ultra 3.8 V6 GAS
When a premature rear wheel slide is obtained on a brake application, it usually is an indication that the fluid pressure to the rear wheels is above the 50% reduction ratio for the rear line pressure and that malfunction has occurred within the proportioning valve.
To test the valve, install gauge set shown in Fig. in brake line between master cylinder and proportioning valve, and at outpu...
CLICK HERE TO GET FULL ACCESS TO 1991 Buick Park Avenue BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Buick Park Avenue AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Buick Park Avenue cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> TOYOTA/GM SINGLE DIAPHRAGM TYPE -> ADJUSTMENTS -> Assembly -> Booster Pushrod -> Brake Pedal -> Brakes Drag -> Brakes Grab -> Disassembly -> Hard Pedal/Brakes Inefficient -> Low Or Spongy Brake Pedal -> OVERHAUL -> TROUBLESHOOTING
Vehicle: 1991 Buick Park Avenue Ultra 3.8 V6 GAS
ADJUSTMENTS
Brake Pedal
- With engine running and brake pedal in rest position, measure distance between face of pedal and floor mat.
- If distance is not 5.79-6.18 inches, adjust pedal height as follows:
- Remove left lower instrument panel trim section and air duct.
- Loosen stop lamp switch sufficiently to gain clearance for pedal adjustment.
- Loosen locknut and rotate pedal pushrod as needed to obtain specified pedal height, then tighten locknut.
- Adjust position of brake light switch so that plunger lightly contacts pedal stopper and brake lamps are off when pedal is release...
CLICK HERE TO GET FULL ACCESS TO 1991 Buick Park Avenue BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Buick Park Avenue AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Buick Park Avenue cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> GIRLOCK SINGLE DIAPHRAGM TYPE -> Assembly -> Brakes Grab -> Brakes Slow To Release Or Drag -> Brakes Slow To Respond -> DESCRIPTION -> Disassembly -> Excessive Pedal Effort -> OVERHAUL -> TROUBLESHOOTING
Vehicle: 1991 Buick Park Avenue 3.8 V6 GAS
DESCRIPTION
This booster is a single diaphragm, vacuum suspended unit with a lightweight cast alloy housing,Fig. . Vacuum is applied to the front and rear housings. When the brake pedal is released, negative pressure is equalized on both sides of the diaphragm and power piston assembly. Spring tension holds the piston at the rest position. When the brakes are applied, the atmospheric port in the power piston is opened. Negative pressure in the front chamber pulls the diaphragm and vacuum piston assembly, reaction disc and output rod forward. Pressure on the master c...
CLICK HERE TO GET FULL ACCESS TO 1991 Buick Park Avenue BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Buick Park Avenue AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Buick Park Avenue cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Type 5 -> INSTALLATION
Vehicle: 1991 Buick Park Avenue 3.8 V6 GAS
- Press adjuster pin and spring washer into shoe and lining so that pin projects .275-.283 inch from the side on which the adjuster actuator is installed.
- Install adjuster shoe and lining, to front of vehicle on left side or to rear of vehicle on right side.
- Install parking brake lever on shoe and lining with spring washer, pin and retaining ring. Install spring washer with concave side against parking brake lever.
- Attach adjuster shoe and lining to remaining shoe with lower return spring.
- Install both shoes on backing plate, securing with hold-down pins and springs.
- Install adjuster actu...
CLICK HERE TO GET FULL ACCESS TO 1991 Buick Park Avenue BRAKE SERVICE PROCEDURES
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