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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1999EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORSERVICE AND REPAIR
1999 Chevrolet Express 1 Ton Van V8-5.7L VIN R
Throttle Position Sensor: Service and Repair
1999 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Service and Repair
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Remove the TP sensor harness connector.
4. Remove the TP sensor attaching fasteners.
NOTE: The TP sensor is an electrical component. Do not soak the TP sensor in any liquid cleaner or solvent as damage may result.
5. Remove the TP sensor from the throttle body assembly.
INSTALLATION PROCEDURE
1. With the throttle valve closed, install the TP sensor on the throttle shaft.
Rotate the TP sensor counterclockwise in order to align the mounting holes.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the TP sensor attaching fasteners.
Tighten
Tighten the fasteners to 2.0 N.m (18.0 lb in).
3. Install the TP sensor harness connector.
4. Install the engine cover.
5. Connect the negative battery cable.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Remove the TP sensor harness connector.
4. Remove the TP sensor attaching fasteners.
NOTE: The TP sensor is an electrical component. Do not soak the TP sensor in any liquid cleaner or solvent as damage may result.
5. Remove the TP sensor from the throttle body assembly.
INSTALLATION PROCEDURE
1. With the throttle valve closed, install the TP sensor on the throttle shaft.
Rotate the TP sensor counterclockwise in order to align the mounting holes.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the TP sensor attaching fasteners.
Tighten
Tighten the fasteners to 2.0 N.m (18.0 lb in).
3. Install the TP sensor harness connector.
4. Install the engine cover.
5. Connect the negative battery cable.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.