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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 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 2003 Jeep Wrangler automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 Jeep Wrangler
- 2003 Jeep Wrangler Sahara 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 2003 Jeep Wrangler SE 2.4 L4 GAS, CID:148, Fuel Injection, Aspiration:148, Engine VIN:, Desg:1
- 2003 Jeep Wrangler Sport 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 2003 Jeep Wrangler X 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 2003 Jeep Wrangler Rubicon 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
BRAKE SERVICE PROCEDURES FOR 2003 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Jeep Wrangler cars and light trucks from 1990+.
Anti-Lock Brakes -> Jeep -> Diagnosis & Testing -> 2002-04 -> 2005 -> 2005-06 -> 2006 -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Commander -> Connector Pin Identification -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Grand Cherokee -> Liberty -> Wrangler
Vehicle: 2003 Jeep Wrangler Sport 4.0 L6 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to Data Link Connector (DLC) and follow manufacturer's instructions.
Diagnostic Trouble Code Interpretation
Commander
[[table data]]Grand Cherokee
2002-04
[[table data]]2005-06
[[table data]]Liberty
2002-04
[[table data]]2005
[[table data]]2006
[[table data]]Wrangler
[[table data]]Connector Pin Identifica...
[[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]]CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Jeep Wrangler cars and light trucks from 1990+.
Power Brake Units -> Power Brake Unit Service -> Caravan, Town & Country & Voyager -> Cherokee -> Dakota & Durango -> Full Size Pickup -> Full Size Van -> Grand Cherokee -> Hydraulic Booster -> Inline Mount -> Installation -> Liberty -> PT Cruiser -> Removal -> Replacement -> Transverse Mount -> Vacuum Booster -> Wrangler
Vehicle: 2003 Jeep Wrangler X 4.0 L6 GAS
The only serviceable power brake booster components are the vacuum hose and the check valve.. The power brake booster must be serviced as an assembly. If diagnosis indicates a power brake booster fault condition, the unit must be replaced as an assembly.
Replacement
Full Size Pickup
Vacuum Booster
- With engine stopped, pump brake pedal four or five times to deplete power booster vacuum.
- Remove brake lines from master cylinder.
- Remove nuts attaching master cylinder and valves to power brake booster unit studs, then remove master cylinder and valves as an assembly.
- Disconnect vac...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Jeep Wrangler cars and light trucks from 1990+.
Drum Brakes -> Jeep -> Adjustments -> Cherokee & Grand Cherokee -> Parking Brake -> Service Brakes -> Wrangler
Vehicle: 2003 Jeep Wrangler Sahara 4.0 L6 GAS
Service Brakes
- Raise and support vehicle.
- Remove access slot cover at rear of brake support plate.
- Rotate adjuster star wheel while turning wheel and tire until brake locks using a suitable brake adjustment tool.
- Insert a suitable thin tool through adjustment hole and disengage automatic adjuster arm from star wheel, then back off screw approximately one turn.
- Install access slot cover, then lower vehicle and inspect for proper brake operation.
- Drive vehicle in Reverse, make 10-15 firm brake applications with one forward stop between each reverse application to equalize adjustment.
Parking...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Jeep Wrangler cars and light trucks from 1990+.
Disc Brakes -> Cherokee, Grand Cherokee, Liberty & Wrangler -> Brake System Bleed
Vehicle: 2003 Jeep Wrangler X 4.0 L6 GAS
Refer to. "Hydraulic Brak... "
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Jeep Wrangler cars and light trucks from 1990+.
Disc Brakes -> Cherokee, Grand Cherokee, Liberty & Wrangler -> Description
Vehicle: 2003 Jeep Wrangler X 4.0 L6 GAS
The disc brake is of the floating caliper, single piston design. The caliper is fixed by two mounting bolts located in the caliper support bracket, and is positioned over the rotor. It slides on two mounting pins which maintain caliper position relative to rotor and caliper anchor plate. Although...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Jeep Wrangler cars and light trucks from 1990+.
Disc Brakes -> Cherokee, Grand Cherokee, Liberty & Wrangler -> Precautions -> Brake Bleed -> Brake Disc Service -> Brake Lines & Linings -> Brake Roughness -> Caliper Inspection -> General Precautions
Vehicle: 2003 Jeep Wrangler Sahara 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 thickness o...
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