How to troubleshoot the Mass Airflow (MAF) sensor on Ford Explorer Sport Trac?

Before you blame the sensor for driveability problems, check for wiring issues when troubleshooting the MAF sensor. A hot-wire element is used by the MAF sensor to measure air mass and then it converts it into a voltage signal for the PCM. Faulty MAF sensors can make a car surge or stall in its tracks. To evaluate, measure the voltage from B+ to ground terminal which would be above 10 volts. Consider checking the signal and ground terminals for voltage at idle as well as increased rpm. Apply an ohmmeter to verify broken circuitry in between. Verify that your voltage readings are correct before going any further with your investigation into the wiring harness. In removing the air intake duct, disconnecting the connector, and replacing assembly without separating plastic body from metal ducts is how to replace MAF sensors.

Genuine Ford Explorer Sport Trac Mass Air Flow Sensor

MAF Sensor Meter

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Ford Explorer Sport Trac Sensor Assembly
Part Number: 3L3Z-12B579-BA
$139.11 MSRP: $229.93
You Save: $90.82 (40%)
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Product Specifications
- Other Name: Sensor Assy
- Manufacturer Note: 4.6L, Police
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Explorer Sport Trac Sensor Assembly
Part Number: 1L2Z-12B579-BARM
Product Specifications
- Other Name: Sensor Assy
- Replaced by: 1L2Z-12B579-ARM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2005 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, Four-Wheel Drive, Left Hand Drive, Two-Wheel Drive
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Ford Explorer Sport Trac Sensor Assembly
Part Number: XF2Z-12B579-ABRM
Product Specifications
- Other Name: Sensor Assy
- Manufacturer Note: Exchange Part (Re-Manufactured)
- Replaced by: 1L2Z-12B579-ARM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, Four-Wheel Drive, Left Hand Drive, Two-Wheel Drive

Ford Explorer Sport Trac Mass Air Flow Sensor Parts Questions & Experts Answers

Sensor Assembly
XF2Z-12B579-ABRM
Q: How to troubleshoot the Mass Airflow (MAF) sensor on Ford Explorer Sport Trac?
A: Before you blame the sensor for driveability problems, check for wiring issues when troubleshooting the MAF sensor. A hot-wire element is used by the MAF sensor to measure air mass and then it converts it into a voltage signal for the PCM. Faulty MAF sensors can make a car surge or stall in its tracks. To evaluate, measure the voltage from B+ to ground terminal which would be above 10 volts. Consider checking the signal and ground terminals for voltage at idle as well as increased rpm. Apply an ohmmeter to verify broken circuitry in between. Verify that your voltage readings are correct before going any further with your investigation into the wiring harness. In removing the air intake duct, disconnecting the connector, and replacing assembly without separating plastic body from metal ducts is how to replace MAF sensors.