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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Pontiac Aztek car and truck
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procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Aztek AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Aztek cars and light trucks from 1990+.
Hydraulic Brake Systems -> Adjustments -> Height Sensing Proportioning Valve
Vehicle: 2003 Pontiac Aztek 3.4 V6 GAS
Height Sensing Proportioning Valve
The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be inspected if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.
- Raise and support vehicle, leave wheels on and allow axle to hang freely.
- Remove lever retaining nut and disconnect lever from valve shaft,. Fig. .
- Rotate valve shaft to permit installation of correct adjustment gauge,. Fig. , ensure D shaped hol...
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Aztek AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Aztek cars and light trucks from 1990+.
Anti-Lock Brakes -> Bosch 5.3 & 8.0 -> System Service -> ABS Automated Bleed -> Brake Pressure Modulator Valve (BPMV) -> Brake System Bleed -> Component Replacement -> Electronic Brake Control Module (EBCM) -> Hydraulic Brake System Bleeding -> Manual -> Pressure -> Wheel Speed Sensor
Vehicle: 2003 Pontiac Aztek 3.4 V6 GAS
Brake System Bleed
ABS Automated Bleed
In most circumstances a base brake bleed is all that is required for most component replacements (such as wheel cylinders, calipers, brake tubes, and master cylinder) except for BPMV replacement.
The following automated ABS bleed procedure is required when one of the following occur: Manual bleeding at the wheel cylinders does not achieve the desired pedal height or feel. Brake Pressure Modulator Valve replacement (BPMV). Extreme loss of brake fluid has occurred. Air ingestion is suspected.
If none of the above conditions apply use standard blee...
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Aztek AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Aztek cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2003 Pontiac Aztek 3.4 V6 GAS
Hard Pedal
- Internal vacuum leak.
- Faulty control valve.
- Broken or damaged hydraulic brake lines.
- Collapsed or damaged vacuum hose.
- Plugged or loose vacuum fitting.
- Bad stud welds on front or rear housing on power head.
- Faulty booster diaphragm.
- Restricted air filter element.
- Worn or distorted reaction plate or levers.
- Cracked or broken pow...
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Aztek AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Aztek cars and light trucks from 1990+.
Drum Brakes -> Inspection -> Adjuster Mechanism -> Backing Plate -> Brake Drums -> Brake Linings & Springs -> General System -> Parking Brake Cable
Vehicle: 2003 Pontiac Aztek 3.4 V6 GAS
General System
- Inspect components for damage or unusual wear. Replace as required.
- Inspect backing plate mounting bolts and ensure they are tight.
- Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement. Slight amount of fluid is always present and is considered normal, acting as lubricant for cylinder pistons.
- Inspect adjuster screw operation. If satisfactory, lightly lubricate adjusting screw and washer with suitable brake lube. If operation is unsatisfactory, replace.
- Clean rust and dirt from shoe contact surfaces on backing plate using fi...
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Aztek AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Aztek cars and light trucks from 1990+.
Anti-Lock Brakes -> Bosch 5.3 & 8.0 -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Aztek & Rendezvous -> Clearing Diagnostic Trouble Codes -> Connector Pin Identification -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Equinox, Torrent & Vue -> Hummer H2 -> Intermittents & Poor Connections -> Symptom Tests -> Temperature Vs. Resistance
Vehicle: 2003 Pontiac Aztek 3.4 V6 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to Data Link Connector (DLC) and follow manufacturers instructions.
Diagnostic Trouble Code Interpretation
Aztek & Rendezvous
[[table data]]Equinox, Torrent & Vue
[[table data]]Hummer H2
[[table data]]Connector Pin Identification
Refer to Figs. through for connector pin identifications.
Diagnostic Tests
Aztek & Rendezvous
[[table data]]Equinox, Torrent & Vue
[[table data]]Hummer H2
[[table data]]Symptom Tests
Aztek & Rendezvous
[[table data]]Equinox, Torrent & Vue
[[table data]]Hummer H2
[[table data]]Temperature Vs. Resistance
Refer to Fig. for temperature vs. resistance values.
Intermittents & Poor Connections
Most Intermittents ar...
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Aztek AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Aztek cars and light trucks from 1990+.
Disc Brakes -> Delco Single Piston Sliding Caliper -> Description
Vehicle: 2003 Pontiac Aztek 3.4 V6 GAS
The caliper assembly slides on its mounting surfaces,. Fig. . Upon brake application, hydraulic pressure against the piston forces the inboard pad against the inboar...
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