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 MANUALSCHEVROLET2004AVALANCHE 2500 2WD V8-8.1L VIN GREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSKNOCK SENSORSERVICE AND REPAIRKNOCK SENSOR (KS) 2 REPLACEMENT
2004 Chevrolet Avalanche 2500 2WD V8-8.1L VIN G
Knock Sensor (KS) 2 Replacement
2004 Chevrolet Avalanche 2500 2WD V8-8.1L VIN GSECTION Knock Sensor (KS) 2 Replacement
KNOCK SENSOR (KS) 2 REPLACEMENT
REMOVAL PROCEDURE
1. Drain the cooling system/engine block. Refer to Draining and Filling Cooling System in Cooling System.
2. Disconnect the knock sensor electrical connector (3).
3. Remove the knock sensor.
INSTALLATION PROCEDURE
1. Install the knock sensor.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the sensor to 20 N.m (15 lb ft).
2. Connect the knock sensor electrical connector (3).
3. Fill the cooling system/engine block. Refer to Draining and Filling Cooling System in Cooling System.
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.