4.2L Engine Sensor Locations

Typical engine data sensor locations for the 4.2L straight six cylinder engine in many GM SUV’s and small trucks.

4,2L engine data sensor locations

  1. Intake Air Temperature Sensor (IAT)
  2. Throttle Body (under air inlet)
  3. Electronic Throttle Control
  4. MAP Sensor
  5. Secondary Air Injection Diverter Valve
  6. Powertrain Control Module (PCM)
  7. Exhaust Cam Actuator Solenoid
  8. Fuel Pressure Regulator
  9. Exhaust Camshaft Position Sensor

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