2007 Chevrolet Impala V8-5.3LFACTORY OEM SERVICE PROCEDURE

Air Flow Meter/Sensor: Service and Repair



Mass Airflow Sensor/Intake Air Temperature Sensor Replacement

Removal Procedure

Factory service manual diagram



1. Remove the air intake duct.
2. Disconnect the mass air flow/intake air temperature (MAF/IAT) sensor electrical connector (2).

Factory service manual diagram



3. Remove the MAF/IAT sensor bolts.
4. Remove the MAF/IAT sensor from the air cleaner housing.
5. Remove the MAF/IAT sensor seal, if necessary.

Installation Procedure

Factory service manual diagram



1. Install the MAF/IAT sensor seal, if necessary.
2. Install the MAF/IAT sensor to the air cleaner housing.

Notice: Refer to Fastener Notice in Service Precautions.

3. Install the MAF/IAT sensor bolts.

Tighten the bolts to 10 N.m (89 lb in).

Factory service manual diagram



4. Connect the MAF/IAT sensor electrical connector (2).
5. Install the air intake duct.

Factory Service Tools

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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.

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