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 MANUALSCHEVROLET2002AVALANCHE 1500 2WD V8-5.3L VIN TREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORSERVICE AND REPAIR
2002 Chevrolet Avalanche 1500 2WD V8-5.3L VIN T
Throttle Position Sensor: Service and Repair
2002 Chevrolet Avalanche 1500 2WD V8-5.3L VIN TSECTION Service and Repair
REMOVAL PROCEDURE
CAUTION: Refer to the Battery Disconnect Caution in Service Precautions.
NOTE: The TP sensor is an electrical component. Do not soak the TP sensor in any liquid cleaner or solvent as damage may result.
IMPORTANT: If the vehicle is equipped with electronic throttle control (ETC) the throttle position (TP) sensor is NOT serviceable. The throttle body and TP sensor MUST be serviced as a complete assembly.
1. Disconnect the negative battery cable.
2. Remove the generator.
3. Disconnect the throttle position TP sensor electrical connector.
4. Remove the TP sensor attaching screws (5).
5. Remove the TP sensor (6).
6. Remove the TP sensor O-ring seal (7).
INSTALLATION PROCEDURE
1. Install the TP sensor O-ring seal (7) on the TP sensor (6).
2. Install the TP sensor on the throttle body with the throttle valve in the closed position. Verify the TP sensor lever lines up with the TP sensor drive lever on the throttle shaft.
NOTE: Refer to the Fastener Notice in Service Precautions.
3. Install the TP sensor attaching screws (5).
Tighten
Tighten the screws to 2 N.m (18 lb in).
4. Connect the TP sensor electrical connector.
5. Install the generator.
6. Connect the negative battery cable.
CAUTION: Refer to the Battery Disconnect Caution in Service Precautions.
NOTE: The TP sensor is an electrical component. Do not soak the TP sensor in any liquid cleaner or solvent as damage may result.
IMPORTANT: If the vehicle is equipped with electronic throttle control (ETC) the throttle position (TP) sensor is NOT serviceable. The throttle body and TP sensor MUST be serviced as a complete assembly.
1. Disconnect the negative battery cable.
2. Remove the generator.
3. Disconnect the throttle position TP sensor electrical connector.
4. Remove the TP sensor attaching screws (5).
5. Remove the TP sensor (6).
6. Remove the TP sensor O-ring seal (7).
INSTALLATION PROCEDURE
1. Install the TP sensor O-ring seal (7) on the TP sensor (6).
2. Install the TP sensor on the throttle body with the throttle valve in the closed position. Verify the TP sensor lever lines up with the TP sensor drive lever on the throttle shaft.
NOTE: Refer to the Fastener Notice in Service Precautions.
3. Install the TP sensor attaching screws (5).
Tighten
Tighten the screws to 2 N.m (18 lb in).
4. Connect the TP sensor electrical connector.
5. Install the generator.
6. Connect the negative battery cable.
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.