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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Jeep Wagoneer car and truck
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BRAKE SERVICE PROCEDURES FOR 1990 Jeep Wagoneer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Jeep Wagoneer cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, CHRYSLER CORP. -> MASTER CYLINDER -> DIAGONALLY SPLIT SYSTEMS -> FRONT & REAR SPLIT SYSTEMS
Vehicle: 1990 Jeep Wagoneer Limited 4.0 L6 GAS
FRONT & REAR SPLIT SYSTEMS
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 independent hydraulic systems. The fluid displacement of the two master cylinders is proportioned to fulfill the requirements of each of the two independent hydraulic brake systems.
If a failure of a rear (secondary) brake system should occur, initial brake pedal movement causes the unrestricted secondary piston to bottom in the master cylinder bore. Primary...
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BRAKE SERVICE PROCEDURES FOR 1990 Jeep Wagoneer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Jeep Wagoneer cars and light trucks from 1990+.
POWER BRAKE UNITS, CHRYSLER CORP. -> Power Boosters -> DESCRIPTION
Vehicle: 1990 Jeep Wagoneer Limited 4.0 L6 GAS
These units are self contained vacuum hydraulic power braking units. They are the vacuum suspended type which use engine intake manifold vacuum and atmospheric pressure for their power, eliminating the need for a vacuum reservoir. A mechanically operated control valve, integral with the vacuum power diaphragms, controls degree of brake application or release depending on amount of foot pressure applied to valve o...
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BRAKE SERVICE PROCEDURES FOR 1990 Jeep Wagoneer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Jeep Wagoneer cars and light trucks from 1990+.
ANTI-LOCK BRAKE SYSTEM, CHRYSLER CORP. -> Jeep -> DESCRIPTION
Vehicle: 1990 Jeep Wagoneer Limited 4.0 L6 GAS
The anti-lock brake system prevents wheel lock-up by monitoring wheel speed and altering pressure to the wheels. This is accomplished using an anti-lock brake module, power brake hydraulic booster, electric pump, accumulator, three channel modulator and wheel speed sensors.
I...
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BRAKE SERVICE PROCEDURES FOR 1990 Jeep Wagoneer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Jeep Wagoneer cars and light trucks from 1990+.
DRUM BRAKES, CHRYSLER CORP. -> General Information -> GENERAL INSPECTION -> ADJUSTER MECHANISM -> BACKING PLATE -> BRAKE DRUMS -> BRAKE LININGS & SPRINGS -> PARKING BRAKE CABLE
Vehicle: 1990 Jeep Wagoneer Limited 4.0 L6 GAS
BRAKE DRUMS
Any time the brake drums are removed for brake service, the braking surface diameter should be checked with a suitable brake drum micrometer at several points to determine if they are within the safe oversize limit stamped on the brake drum outer surface. If the braking surface diameter exceeds specifications, the drum must be replaced. If the braking surface diameter is within specifications, drums should be cleaned and inspected for cracks, scores, deep grooves, taper, out of round and heat spotting. If drums are cracked or heat spotted, they must be replaced. Mi...
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BRAKE SERVICE PROCEDURES FOR 1990 Jeep Wagoneer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Jeep Wagoneer cars and light trucks from 1990+.
DISC BRAKES, CHRYSLER CORP. -> General Information -> SERVICE PRECAUTIONS -> BLEEDING DISC BRAKES -> BRAKE DISC SERVICE -> BRAKE LINES & LININGS -> BRAKE ROUGHNESS -> GENERAL PRECAUTIONS -> INSPECTION OF CALIPER
Vehicle: 1990 Jeep Wagoneer Limited 4.0 L6 GAS
BRAKE LINES & LININGS
Remove one of the front wheels and inspect the brake disc, caliper and linings. The wheel bearings should be inspected at this time and repacked if necessary.
Do not get any oil or grease on the linings. It is recommended that both front wheel sets be replaced whenever a respective pad is worn or damaged. Inspect and, if necessary, replace rear brake linings also.
If the caliper is cracked or fluid leakage through the casting is evident, it must be replaced as a unit.
BRAKE ROUGHNESS
The most common cause of brake chatter on disc brakes is a variation in thi...
CLICK HERE TO GET FULL ACCESS TO 1990 Jeep Wagoneer BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Jeep Wagoneer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Jeep Wagoneer cars and light trucks from 1990+.
DRUM BRAKES, CHRYSLER CORP. -> Drum Brakes, Jeep -> SERVICE BRAKES, Adjust -> CHEROKEE, COMANCHE & WAGONEER -> EXCEPT CHEROKEE, COMANCHE & WAGONEER
Vehicle: 1990 Jeep Wagoneer Limited 4.0 L6 GAS
CHEROKEE, COMANCHE & WAGONEER
- Raise and support vehicle.
- Remove access slot cover at rear of brake support plate.
- Rotate adjuster screw until wheel locks, then back off screw approximately one turn.
- Install access slot cover, then lower vehicle and check for proper brake operation.
- Drive vehicle in Reverse, making 10 to 15 firm brake applications with one forward stop between each reverse application to equalize adjustment.
EXCEPT CHEROKEE, COMANCHE & WAGONEER
Two different rear drum brake designs are used. They are similar in construction and operation but differ in method of a...
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