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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Ford Focus car and truck
repair procedures including Ford 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 Ford Focus automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 Ford Focus
- 2003 Ford Focus SE 2.0 L4 GAS, CC:1989, CID:121, Fuel Injection, Aspiration:121, Engine VIN:, Desg:3
- 2003 Ford Focus SE 2.0 L4 GAS, CC:1989, CID:122, Fuel Injection, Aspiration:122, Engine VIN:, Desg:P
- 2003 Ford Focus SE 2.3 L4 GAS, CID:140, Fuel Injection, Aspiration:140, Engine VIN:, Desg:Z
- 2003 Ford Focus ZTS 2.0 L4 GAS, CC:1989, CID:121, Fuel Injection, Aspiration:121, Engine VIN:, Desg:3
- 2003 Ford Focus ZTS 2.3 L4 GAS, CID:140, Fuel Injection, Aspiration:140, Engine VIN:, Desg:Z
- 2003 Ford Focus ZX3 2.0 L4 GAS, CC:1989, CID:121, Fuel Injection, Aspiration:121, Engine VIN:, Desg:3
- 2003 Ford Focus ZX3 2.3 L4 GAS, CID:140, Fuel Injection, Aspiration:140, Engine VIN:, Desg:Z
- 2003 Ford Focus LX 2.0 L4 GAS, CC:1989, CID:122, Fuel Injection, Aspiration:122, Engine VIN:, Desg:P
- 2003 Ford Focus LX 2.3 L4 GAS, CID:140, Fuel Injection, Aspiration:140, Engine VIN:, Desg:Z
- 2003 Ford Focus SVT 2.0 L4 GAS, CC:1989, CID:122, Fuel Injection, Aspiration:122, Engine VIN:, Desg:5
- 2003 Ford Focus ZTW 2.0 L4 GAS, CC:1989, CID:121, Fuel Injection, Aspiration:121, Engine VIN:, Desg:3
- 2003 Ford Focus ZTW 2.3 L4 GAS, CID:140, Fuel Injection, Aspiration:140, Engine VIN:, Desg:Z
- 2003 Ford Focus ZX5 2.0 L4 GAS, CC:1989, CID:121, Fuel Injection, Aspiration:121, Engine VIN:, Desg:3
- 2003 Ford Focus ZX5 2.3 L4 GAS, CID:140, Fuel Injection, Aspiration:140, Engine VIN:, Desg:Z
BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Ford Focus cars and light trucks from 1990+.
Anti-lock Brakes -> Focus -> Troubleshooting -> Inspection & Verification -> Symptom Chart
Vehicle: 2003 Ford Focus ZX5 2.0 L4 GAS
Inspection & Verification
- Verify ABS system concern by applying brakes under various driving conditions.
- Perform a visual inspection of brake system for signs of mechanical or electrical damage.
- Inspect the following for mechanical faults:
- Low brake fluid.
- Wheel speed sensors.
- Anti-lock brake system sensor indicators.
- Base brake system.
- Wheel bearings.
- Inspect the following for mechanical faults:
- Fuses and fusible links.
- ABS warning indicator lamp.
- Red brake warning indicator lamp.
- Wiring harness.
- Loose, corroded or damaged connectors.
- If a fault is found during visual inspection, repair as ne...
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BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Ford Focus cars and light trucks from 1990+.
Disc Brakes -> Rear Disc & Parking Brakes -> Rotor Replacement -> Continental, Cougar, Mustang, Sable & Taurus -> Contour & Mystique -> Crown Victoria, Grand Marquis, Marauder & Town Car -> Escort, Tracer & ZX2 -> Installation -> LS & Thunderbird -> Removal
Vehicle: 2003 Ford Focus SVT 2.0 L4 GAS
Continental, Cougar, Mustang, Sable & Taurus
Removal
- Remove rear disc brake caliper assembly as outlined under "Caliper Service." Do not disconnect flexible hose unless caliper requires service. Support caliper with wire or tie strap so flexible hose is not stretched or twisted.
- Remove rear disc support bracket to wheel knuckle bolts, then the rear disc support bracket and brake shoes and linings.
- Remove two nuts, then the rotor from rear hub.
Installation
- If installing new rotor, remove protective coating from rotor with suitable carburetor cleaner.
- Lubricate rear hub pilot diameter w...
CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Ford Focus cars and light trucks from 1990+.
Disc Brakes -> Front Disc Brakes -> Tightening Specifications
Vehicle: 2003 Ford Focus SE 2.0 L4 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Ford Focus cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Brake Distribution Valve & Switch -> Brake Warning Light Systems -> Combination Valve -> Description -> Failure Warning Switch -> Metering Valve -> Proportioner Or Pressure Control Valve -> Proportioning Valve & Switch -> Testing -> Testing Warning Light Systems
Vehicle: 2003 Ford Focus ZTW 2.0 L4 GAS
This system operates on the same principles as conventional front and rear split systems using primary and secondary master cylinders moving simultaneously to exert hydraulic pressure on their respective systems, Fig. .
The hydraulic brake lines on this system, however, have been diagonally split front to rear (left front to right rear and right front to left rear) in place of separate lines to the front and rear wheels.
In the event of a system failure this would cause the remaining good system to do all the braking on one front wheel and the opposite rear wheel, thus maintaining 50%...
CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Ford Focus cars and light trucks from 1990+.
Hydraulic Brake Systems -> Brake System Bleed -> System Priming -> Wheel Bleeding Sequence
Vehicle: 2003 Ford Focus SE 2.0 L4 GAS
Pressure bleeding is recommended for all hydraulic brake systems. Ensure all dirt and contaminants are removed from master cylinder area prior to removing reservoir cap.
To prevent air from the pressure tank getting into the lines, do not shake the tank while air is being added to the tank or after it has been pressurized. Set the tank in the required location, bring the air hose to the tank, and do not move it during the bleeding operation. The tank should be kept at least one-third full.
On vehicles equipped with disc brakes and master cylinders without proportioners or press...
CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Ford Focus cars and light trucks from 1990+.
Disc Brakes -> Rear Disc & Parking Brakes -> Brake Pad Service -> Continental, Cougar, Mustang, Sable & Taurus -> Contour & Mystique -> Crown Victoria, Grand Marquis, Marauder & Town Car -> Escort, Tracer & ZX2 -> Installation -> LS & Thunderbird -> Removal -> Replacement
Vehicle: 2003 Ford Focus SE 2.0 L4 GAS
On models with anti-lock brakes, the brake system power booster must be depressurized before disconnecting any hydraulic lines or fittings. Depressurize the system by pumping the brake pedal a minimum of 25 times with the ignition in the Off position.
After performing any service work, obtain a firm brake pedal before moving the vehicle.
Continental, Cougar, Mustang, Sable & Taurus
Removal
On models with air suspension, turn service switch Off before beginning repairs.
- Raise and support rear of vehicle, then remove wheel and tire assembly.
- Remove brake hose bracket to shock unit bra...
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