Operation CHARM: Car repair manuals for everyone.

Knock Sensor

ECM Wiring:




Bottom LH Side Of Engine

Applicable to: 4.3L

Underhood Components:




Bottom LH Side Of Engine

Applicable to: 4.3L California

Underhood Components:




Bottom LH Side Of Engine

Applicable to: 4.3L Except California

Bottom LH Side Of 4.3L:




Bottom LH Side Of Engine

Applicable to: 3L Engine