Ford F6UZ-12B579-YRM
Mass Air Flow Sensor

Service of the MAF sensor starts with disconnecting the battery ground cable. The MAF sensor detachment requires disconnecting the air cleaner and duct assembly followed by releasing its four tabs. The MAF sensor requires removal after disconnecting the connector and removing its attached nuts. Following the removal steps in reverse order will install the mass air flow sensor without damaging its calibrated hot wire sensing element or housing to avoid sensor failure.

Service of the Mass Air Flow (MAF) Sensor begins with disconnecting the battery ground cable. The MAF sensor works as one calibrated unit where separate repair of its hot wire sensing element and instrument housing is not possible resulting in sensor failure whenever the sensing element gets damaged within the housing. Service of the Mass Air Flow (MAF) Sensor starts with disconnecting the engine control sensor wiring from the Intake Air Temperature (IAT) sensor followed by removing the crankcase ventilation tube from the air cleaner outlet tube. First remove the Engine Air Cleaner (ACL) together with the engine air cleaner cover before disconnecting the MAF sensor electrical connector. The last step involves removing the nuts retaining the MAF sensor to the inner cover. Execute the reverse process for reinstallation while checking that the MAF sensor cover performs correctly to secure the sensor from damage.

The service procedure for the Mass Air Flow (MAF) sensor starts with disconnecting the battery ground cable. The MAF sensor functions as a unified unit because its sensing element resides inside the housing therefore full replacement of the assembly is required to prevent sensor failure. The engine control sensor wiring needs to be disconnected from the Intake Air Temperature (IAT) sensor before removing the crankcase ventilation tube from the air cleaner outlet tube. After disconnecting the electrical connector use the following order to remove the engine Air Cleaner (ACL) and engine air cleaner cover as well as the MAF sensor. Taking the MAF sensor out of the inner cover requires the removal of its securing nuts last as a step. When installing the MAF sensor cover users should reverse the removal steps while ensuring the correct indexing of MAF sensor parts to avoid sensor damage.

Begin by disconnecting the Intake Air Temperature (IAT) sensor, breather hose, and vacuum hose.

Carefully release the four tabs to detach the MAF sensor, then disconnect its connector.

Disconnect the connector and remove the MAF sensor by taking off the nuts.