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Home >> Cadillac >> 2009 >> STS RWD V8-4.4L SC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Air Temperature Sensor ( Ambient / Intake ) >> Service and Repair >> Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
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Mass Airflow Sensor with Intake Air Temperature Sensor Replacement




Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Removal Procedure




1. Remove the front engine compartment sight shield. Refer to Front Compartment Sight Shields Replacement (Front Compartment Sight Shields Replacement).
2. Disconnect the mass air flow (MAF)/intake air temperature (IAT) sensor electrical connector.
3. Remove the MAF/IAT sensor screws.

Caution:
* Handle the MAF sensor carefully.
* Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
* Do not damage the screen located on the air inlet end of the MAF.
* Do not touch the sensing elements.
* Do not allow solvents and lubricants to come in contact with the sensing elements.
* Use a small amount of a soap based solution in order to aid in the installation.

4. Carefully remove the MAF/IAT sensor (1) from the air cleaner housing cover duct.
5. Discard the MAF/IAT sensor gasket.

Installation Procedure





Caution:
* Handle the MAF sensor carefully.
* Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
* Do not damage the screen located on the air inlet end of the MAF.
* Do not touch the sensing elements.
* Do not allow solvents and lubricants to come in contact with the sensing elements.
* Use a small amount of a soap based solution in order to aid in the installation.

1. Install a NEW MAF/IAT sensor gasket.
2. Carefully install the MAF/IAT sensor (1) into the air cleaner housing cover duct.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the MAF/IAT sensor screws and tighten to 4 Nm (35 lb in).
4. Reconnect the MAF/IAT sensor electrical connector.
5. Install the front engine compartment sight shield. Refer to Front Compartment Sight Shields Replacement (Front Compartment Sight Shields Replacement).

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