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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Jeep Wrangler car and truck
repair procedures including Jeep 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 Jeep Wrangler automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1991 Jeep Wrangler
- 1991 Jeep Wrangler 2.5 L4 GAS, CID:150, Fuel Injection, Aspiration:150, Engine VIN:, Desg:P
- 1991 Jeep Wrangler 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 1991 Jeep Wrangler Islander 2.5 L4 GAS, CID:150, Fuel Injection, Aspiration:150, Engine VIN:, Desg:P
- 1991 Jeep Wrangler Islander 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 1991 Jeep Wrangler S 2.5 L4 GAS, CID:150, Fuel Injection, Aspiration:150, Engine VIN:, Desg:P
- 1991 Jeep Wrangler Sahara 2.5 L4 GAS, CID:150, Fuel Injection, Aspiration:150, Engine VIN:, Desg:P
- 1991 Jeep Wrangler Sahara 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 1991 Jeep Wrangler Renegade 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
BRAKE SERVICE PROCEDURES FOR 1991 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Jeep Wrangler cars and light trucks from 1990+.
DISC BRAKES, CHRYSLER CORP. -> Type 7-Single Piston Sliding Caliper, Jeep -> BRAKE PAD, Replace -> CJ-7, Cherokee, Comanche, Scrambler, Wagoneer & Wrangler -> Grand Wagoneer & J-Series Truck -> Grand Wagoner & J-Series Truck -> INSTALLATION -> REMOVAL
Vehicle: 1991 Jeep Wrangler Renegade 4.0 L6 GAS
REMOVAL
Grand Wagoneer & J-Series Truck
- Unfasten caliper as previously described, leaving brake hose attached to caliper. Suspend caliper from suspension spring. Do not let caliper hang by hydraulic line.
- Remove inboard and outboard brake pads from caliper.
- Remove support spring from inboard pad, noting position of spring for assembly reference.
- Remove sleeves and rubber bushings from mounting bolt bores in caliper mounting ears.
- Clean mounting bolts, bolt core and bushing grooves in caliper mounting ears with suitable solvent. Do not use abrasives to clean or polish the mounting b...
CLICK HERE TO GET FULL ACCESS TO 1991 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Jeep Wrangler cars and light trucks from 1990+.
DRUM BRAKES, CHRYSLER CORP. -> Drum Brakes, Jeep -> SERVICE BRAKES, Adjust -> CHEROKEE, COMANCHE & WAGONEER -> EXCEPT CHEROKEE, COMANCHE & WAGONEER
Vehicle: 1991 Jeep Wrangler Sahara 2.5 L4 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...
CLICK HERE TO GET FULL ACCESS TO 1991 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Jeep Wrangler cars and light trucks from 1990+.
ANTI-LOCK BRAKE SYSTEM, CHRYSLER CORP. -> Jeep -> DIAGNOSIS & TESTING -> ACCESSING FAULT CODES -> DIAGNOSTIC TESTS -> WIRING DIAGRAMS
Vehicle: 1991 Jeep Wrangler Islander 2.5 L4 GAS
ACCESSING FAULT CODES
The Anti-lock brake system will detect faults within the system, when a fault is detected one of two brake indicator lamps located on the instrument panel will illuminate and a fault code will be stored in the control unit memory.
When an indicator light is illuminated, refer to Fig. , for diagnosis of the light display mode and repair as necessary.
The system must be visually inspected for leaks, impro...
[[table data]]CLICK HERE TO GET FULL ACCESS TO 1991 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Jeep Wrangler cars and light trucks from 1990+.
DRUM BRAKES, CHRYSLER CORP. -> Drum Brakes, Jeep -> SERVICE BRAKES, Adjust -> CHEROKEE, COMANCHE & WAGONEER -> EXCEPT CHEROKEE, COMANCHE & WAGONEER
Vehicle: 1991 Jeep Wrangler 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...
CLICK HERE TO GET FULL ACCESS TO 1991 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Jeep Wrangler cars and light trucks from 1990+.
POWER BRAKE UNITS, CHRYSLER CORP. -> Power Boosters -> Power Booster, Replace -> 1990-91 CHEROKEE, COMANCHE & WAGONEER -> CARAVAN, MINI RAM VAN, PLYMOUTH VOYAGER & TOWN & COUNTRY -> DAKOTA -> DODGE & PLYMOUTH FULL SIZE TRUCKS & VANS -> EXCEPT HYDRO-BOOST -> HYDRO-BOOST -> Inline Mount -> JEEP EXCEPT 1990-91 CHEROKEE, COMANCHE & WAGONEER -> RAM RAIDER & RAM 50 -> Transverse Mount
Vehicle: 1991 Jeep Wrangler Islander 4.0 L6 GAS
DODGE & PLYMOUTH FULL SIZE TRUCKS & VANS
EXCEPT HYDRO-BOOST
Transverse Mount
- Disconnect vacuum hose from power booster.
- Remove master cylinder to booster attaching nuts, then the master cylinder.
- Remove booster pushrod to pivot attaching bolts.
- Remove power booster attaching nuts, then the power booster assembly.
- Reverse procedure to install.
Inline Mount
- Disconnect vacuum hose from check valve.
- Remove master cylinder to booster attaching nuts.
- Working from under instrument panel, position a suitable screwdriver between center tang on retainer clip and pin in brake pedal. Rotate scr...
CLICK HERE TO GET FULL ACCESS TO 1991 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Jeep Wrangler cars and light trucks from 1990+.
DISC BRAKES, CHRYSLER CORP. -> Type 7-Single Piston Sliding Caliper, Jeep -> BRAKE PAD, Replace -> CJ-7, Cherokee, Comanche, Scrambler, Wagoneer & Wrangler -> Grand Wagoneer & J-Series Truck -> Grand Wagoner & J-Series Truck -> INSTALLATION -> REMOVAL
Vehicle: 1991 Jeep Wrangler 2.5 L4 GAS
REMOVAL
Grand Wagoneer & J-Series Truck
- Unfasten caliper as previously described, leaving brake hose attached to caliper. Suspend caliper from suspension spring. Do not let caliper hang by hydraulic line.
- Remove inboard and outboard brake pads from caliper.
- Remove support spring from inboard pad, noting position of spring for assembly reference.
- Remove sleeves and rubber bushings from mounting bolt bores in caliper mounting ears.
- Clean mounting bolts, bolt core and bushing grooves in caliper mounting ears with suitable solvent. Do not use abrasives to clean or polish the mounting b...
CLICK HERE TO GET FULL ACCESS TO 1991 Jeep Wrangler BRAKE SERVICE PROCEDURES
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