Air Temperature Sensor ( Ambient / Intake ): Service and Repair

2005 Chevrolet Blazer 4WD V6-4.3L VIN XSECTION Service and Repair


INTAKE AIR TEMPERATURE (IAT) SENSOR REPLACEMENT

REMOVAL PROCEDURE




1. Disconnect the negative battery cable.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.




2. Disconnect the intake air temperature (IAT) sensor harness connector.
3. Remove the IAT sensor by pulling straight out using a rotating motion.

INSTALLATION PROCEDURE




1. Install the IAT sensor by gently pushing the sensor into the air cleaner outlet duct until seated.




2. Connect the IAT sensor harness connector.
3. Connect the negative battery cable.
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.