Standard Ignition MAS0138 mass air flow sensor for the 1999-2001 Ford F-150 V8 4.6L, the 1999-2003 F-150 V8 5.4L, the 2003 F-150 V8 4.6L and other vehicles measures the air entering the engine and reports it to the ECU. The ECU uses that reading to balance the air/fuel ratio.
- 100% computer-tested so the ECU receives accurate airflow readings under hard engine conditions
- Hybrid technology for reliable electronic circuitry
- No moving parts in the sensor for wear-free sensor life
- Complete assembly with the housing included
Quick facts
- Part: Standard Ignition MAS0138 mass air flow sensor
- Fits: the 1999-2001 Ford F-150 V8 4.6L, the 1999-2003 F-150 V8 5.4L, the 2003 F-150 V8 4.6L and other vehicles
- Material: Plastic
- Condition: New
A rough idle, hesitation or a check engine light can mean the sensor is failing. A clogged air filter, a cracked intake duct or a vacuum leak can be behind those signs too, so find the cause before you buy a new sensor.
Fits
This mass air flow sensor also fits the 1999 Ford F-250 V8 4.6L or 5.4L and the 1998-1999 Ford Taurus V8 3.4L, along with a wide range of other Ford and Lincoln models. It is a direct-fit OE replacement tested to OE specifications. Each engine takes one sensor, and this listing is one sensor.
Specifications
Fit and size
- Quantity per vehicle: 1
- Attachment: bolt on, 4 bolt holes
- Connector: 1 rectangular female connector
- Terminals: 4 male blade terminals
Build and materials
- Construction: complete assembly, housing included
- Material: Plastic
- Condition: New
- Country of origin: Thailand
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is the MAS0138 a Ford F-150 mass air flow sensor for the 1999-2003 V8 5.4L?
Yes. Standard Ignition MAS0138 fits the 1999-2003 Ford F-150 V8 5.4L, the 1999-2001 F-150 V8 4.6L and the 2003 F-150 V8 4.6L. Look up your own vehicle in the "Vehicles it fits" section.
How does this mass air flow sensor mount, and what connector does it have?
Standard Ignition MAS0138 bolts on through 4 bolt holes. It has one rectangular female connector with four male blade terminals.
Does the Standard Ignition MAS0138 have moving parts that wear out?
No. The sensor has no moving parts, which gives it a wear-free sensor life, and hybrid technology supports its electronic circuitry.
What material is this mass air flow sensor made of, and where is it made?
The material is plastic, and the country of origin is Thailand. The assembly includes its housing.
How is this mass air flow sensor tested?
Each sensor is 100% computer-tested so the ECU gets accurate airflow readings under hard engine conditions. It is also tested to OE specifications.
