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 MANUALSCHEVROLET2004TAHOE 4WD V8-4.8L VIN VREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMKNOCK SENSORSERVICE AND REPAIR
2004 Chevrolet Tahoe 4WD V8-4.8L VIN V
Knock Sensor: Service and Repair
2004 Chevrolet Tahoe 4WD V8-4.8L VIN VSECTION Service and Repair
KNOCK SENSOR (KS) REPLACEMENT
REMOVAL PROCEDURE
1. Remove the intake manifold.
2. Gently pry up the rubber covers.
3. Disconnect the knock sensor electrical connectors.
4. Remove the knock sensors.
INSTALLATION PROCEDURE
1. Install the knock sensors.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the sensor to 20 N.m (15 lb ft).
2. Connect the knock sensor electrical connectors.
3. Push down on the rubber covers.
4. Install the intake manifold.
REMOVAL PROCEDURE
1. Remove the intake manifold.
2. Gently pry up the rubber covers.
3. Disconnect the knock sensor electrical connectors.
4. Remove the knock sensors.
INSTALLATION PROCEDURE
1. Install the knock sensors.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the sensor to 20 N.m (15 lb ft).
2. Connect the knock sensor electrical connectors.
3. Push down on the rubber covers.
4. Install the intake manifold.
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.