TrailBlazer 4WD L6-4.2L (2007)
Knock Sensor: Locations
Engine Controls Component Views
Lower Left Side of the Engine
1 - Evaporative Emission (EVAP) Canister Purge Solenoid
2 - Starter
3 - Crankshaft Position (CKP) Sensor
4 - Knock Sensor (KS) 2 - Rear
5 - Knock Sensor (KS) 1 - Front
