OEM Ford Excursion Mass Air Flow Sensor

Ford Excursion Mass Air Flow Sensor Parts Questions & Experts Answers

• Mass Air Flow Sensor
  YC2Z-12B579-BBRM
  Q: How to Service and Repair the Mass Air Flow Sensor on Ford Excursion?

  A: Begin any repair process on the Mass Air Flow (MAF) Sensor by disconnecting the battery ground cable. After opening the engine air cleaner you should disconnect the electrical connector which connects to the MAP sensor. Untighten the air cleaner clamp then divide the air cleaner into inlet and outlet parts yet maintain the MAF sensing elements intact to avoid failure. The MAP sensor along with its body receives calibration and repair as a unified unit. To proceed you must first disconnect the MAF assembly yet keep the MAF sensor electrical connection detached and use the nuts to split the MAF sensor away from the MAF sensor plate. When putting back these components keep the engine air cleaner housing grommet fully seated to stop unmetered air from entering the engine. The alignment notch should guide alignment of the engine air cleaner's inlet and outlet areas while checking that wires do not get trapped behind the MAF sensor before reinstalling and tilting the electrical connector upward.