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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Pontiac Lemans car and truck
repair procedures including Pontiac 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 Pontiac Lemans automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1991 Pontiac Lemans
- 1991 Pontiac Lemans LE 1.6 L4 GAS, CC:1588, CID:98, Fuel Injection, Aspiration:98, Engine VIN:, Desg:6
- 1991 Pontiac Lemans LE Aerocoupe 1.6 L4 GAS, CC:1588, CID:98, Fuel Injection, Aspiration:98, Engine VIN:, Desg:6
- 1991 Pontiac Lemans Value Leader 1.6 L4 GAS, CC:1588, CID:98, Fuel Injection, Aspiration:98, Engine VIN:, Desg:6
BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Lemans AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Pontiac Lemans cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Type 3 -> INSTALLATION
Vehicle: 1991 Pontiac Lemans Value Leader 1.6 L4 GAS
- Lubricate backing plate at points shown,Fig. .
- Connect parking brake lever to parking brake cable.
- Ensure parking brake cable is properly routed, then install shoes and lining to backing plate with hold-down spring, washer and pin.
- Position adjuster shoe and lining and lower return spring against backing plate. Ensure spring is properly positioned under anchor plate.
- Install hold-down spring, washer and...
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BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Lemans AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Pontiac Lemans cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> MASTER CYLINDER REPLACEMENT
Vehicle: 1991 Pontiac Lemans LE 1.6 L4 GAS
- Disconnect wire connector from brake warning pressure switch.
- Disconnect brake lines fro...
CLICK HERE TO GET FULL ACCESS TO 1991 Pontiac Lemans BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Lemans AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Pontiac Lemans cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> SYSTEM SERVICE -> BLEEDING BRAKES -> Flushing Hydraulic System -> Manual Bleeding -> Pressure Bleeding -> Wheel Bleeding Sequence
Vehicle: 1991 Pontiac Lemans Value Leader 1.6 L4 GAS
BLEEDING BRAKES
Manual Bleeding
Pressure bleeding is recommended for all hydraulic systems. However, if a pressure bleeder is unavailable, use the following procedure.Brake fluid damages painted surfaces. Immediately clean any spilled fluid.
- Remove vacuum reserve by pumping brakes several times with engine off.
- Fill master cylinder reservoir with clean brake fluid. Check fluid level often during bleeding procedure; do not let reservoir fall below half full.
- If necessary, bleed master cylinder as follows:
- Disconnect master cylinder forward brake line connection until fluid flows from re...
CLICK HERE TO GET FULL ACCESS TO 1991 Pontiac Lemans BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Lemans AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Pontiac Lemans cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> BRAKE SHOES, LININGS & CALIPERS
Vehicle: 1991 Pontiac Lemans LE 1.6 L4 GAS
Remove wheels and inspect brake disc, caliper and linings. The wheel bearings should be inspected at this time and repacked if necessary. Do not get any grease on the linings.
Do not replace individual pads or replace pads on one wheel of an axle set alone, as braking performance will be adversely affected.
If a visual inspection does not ade...
CLICK HERE TO GET FULL ACCESS TO 1991 Pontiac Lemans BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Lemans AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Pontiac Lemans cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> SYSTEM OPERATION -> Diagonally Split System -> DUAL MASTER CYLINDER -> Front & Rear Split System
Vehicle: 1991 Pontiac Lemans Value Leader 1.6 L4 GAS
DUAL MASTER CYLINDER
Front & Rear Split System
When the brake pedal is depressed, both the primary (front brake) and the secondary (rear brake) master cylinder pistons are moved simultaneously to exert hydraulic fluid pressure on their respective systems,Figs. and .
If the rear (secondary) brake system fails, initial brake pedal movement will cause the unrestricted secondary piston to bottom in the master cylinder bore. Primary piston movement will displace hydraulic fluid in the primary section of the master cylinder to actuate the front brake system.
If the front (primary) brak...
CLICK HERE TO GET FULL ACCESS TO 1991 Pontiac Lemans BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Lemans AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Pontiac Lemans cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Type 3 -> INSPECTION
Vehicle: 1991 Pontiac Lemans Value Leader 1.6 L4 GAS
- If any parts are of doubtful strength or quality due to heat discoloration, or are worn, replace them.
- Inspect wheel cylinder dust boots for signs of excessive wear or damage.
- Inspect adjusting screw for smooth operation over full length.
- Clean adjusting screw components in denatured alcohol.
- Apply suitable lubricant to adjuster screw threads, inside diameter of socket and socket face. Adequate lubrication is achieved when a continuous bead of l...
CLICK HERE TO GET FULL ACCESS TO 1991 Pontiac Lemans BRAKE SERVICE PROCEDURES
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