2007 Cadillac Escalade ESV Mass Air Flow Sensor

You need to remove the air cleaner outlet duct and inspect the Throttle Body bore and the throttle plate for deposits. You will need to open the throttle plate to inspect all surfaces. Then you can clean the throttle body bore and the throttle plate using a clean shop towel with GM Top Engine Cleaner, P/N 1052626, or AC-Delco Carburetor Tune-Up Conditioner, P/N X66-P, or an equivalent product and install the air cleaner outlet duct.

You need to disconnect the engine wiring harness electrical connector from the mass airflow (MAF)/intake air temperature (IAT) sensor, loosen the air cleaner housing screws, lift the air cleaner housing cover and remove the Air Filter element.

You need to install the MAP Sensor and the MAP sensor retainer, connect the engine harness wiring electrical connector to the MAP sensor and install the intake manifold sight shield.