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Home >> Hummer >> 2008 >> H3 V8-5.3L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Knock Sensor >> Service and Repair >> Knock Sensor 1 Replacement

Knock Sensor 1 Replacement

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Knock Sensor 1 Replacement

Removal Procedure





1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .
2. Disconnect the engine wiring harness electrical connector (2) from the knock sensor (1).




3. Remove the knock sensor bolt (739) and sensor (718).



Installation Procedure






Notice: Refer to Fastener Notice (Fastener Notice) .

1. Position the knock sensor (718) to the engine block and install the bolt (739).

Tighten the bolt to 20 N.m (15 lb ft).





2. Connect the engine wiring harness electrical connector (2) to the knock sensor (1).
3. Lower the vehicle.