Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003MALIBU V6-3.1L VIN JREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORSERVICE AND REPAIR
2003 Chevrolet Malibu V6-3.1L VIN J
Throttle Position Sensor: Service and Repair
2003 Chevrolet Malibu V6-3.1L VIN JSECTION Service and Repair
THROTTLE POSITION (TP) SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Turn OFF the ignition.
2. Remove the air intake duct.
3. Disconnect the TP sensor electrical connector.
4. Remove the 2 TP sensor fasteners.
5. Remove the TP sensor and O-ring.
INSTALLATION PROCEDURE
1. Install the TP sensor O-ring on the TP sensor.
2. Install the TP sensor on the throttle body assembly.
3. Install the 2 TP sensor fasteners, using a thread-locking compound on the screws. Loctite(r) 262, GM P/N #1052624, or equivalent should be used.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the TP sensor attaching screws to 2 N.m (18 lb in).
4. Connect the TP sensor electrical connector.
5. Install the air intake duct.
REMOVAL PROCEDURE
1. Turn OFF the ignition.
2. Remove the air intake duct.
3. Disconnect the TP sensor electrical connector.
4. Remove the 2 TP sensor fasteners.
5. Remove the TP sensor and O-ring.
INSTALLATION PROCEDURE
1. Install the TP sensor O-ring on the TP sensor.
2. Install the TP sensor on the throttle body assembly.
3. Install the 2 TP sensor fasteners, using a thread-locking compound on the screws. Loctite(r) 262, GM P/N #1052624, or equivalent should be used.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the TP sensor attaching screws to 2 N.m (18 lb in).
4. Connect the TP sensor electrical connector.
5. Install the air intake duct.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.