Walker Products 245-2204 mass air flow sensor for the 2003-2004 Ford Grand Marquis V8 4.6L and other vehicles measures the air entering the engine. The engine computer uses that reading to set the air-fuel ratio.
- Part of the Walker Premium mass air flow sensor line
- Each sensor is programmed and tested for fit, form and function before sale
- Custom-tuned flow characteristics across the full flow spectrum
- Custom-engineered circuit boards and programming
- Calibrations go through 100% production testing and are verified on a vehicle
Quick facts
- Part: Walker Products 245-2204 mass air flow sensor
- Fits: 2003-2004 Ford Grand Marquis V8 4.6L and other vehicles
- Condition: New
A vacuum leak in the intake, a clogged air filter or a faulty throttle body can be behind a rough idle, hesitation, weaker fuel economy or a check engine light, just as a worn sensor can. Find the cause before buying a new sensor. If the mass air flow sensor is the cause, this one replaces it.
Fits
This is a direct-fit replacement for the 2003-2004 Ford Grand Marquis V8 4.6L and the 2003-2004 Mercury Marauder V8 4.6L. This listing is one sensor, and both cars take a single sensor.
Specifications
Fit and size
- Quantity per vehicle: 1
- Terminals: 6 spade terminals
- Connector: 1 male, rectangular
- Mounting holes: 2
Build and materials
- Type: sensor only, housing not included
- Condition: New
- Country of origin: China
In the box
One mass air flow sensor. The housing and mounting hardware are not included, so plan on new fasteners, because the old ones may not be reusable.
Installation notes
- Oils from your hands can damage the sensor, so handle it with care.
- Some vehicle manufacturers recommend replacing the complete housing assembly to keep the connector air tubes clean and protect the sensor.
- The sensor is designed for straightforward installation.
Interchange: 3W3F12B579AA · 3W3Z12B579AARM · 3W7Z12B579AA · MAF0043 · 3W3Z12B579AA
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
3W3F12B579AA, 3W3Z12B579AARM, 3W7Z12B579AA, MAF0043, 3W3Z12B579AA
Frequently Asked Questions
Is this the right mass air flow sensor for the 2003-2004 Ford Grand Marquis V8 4.6L?
Yes. Walker Products 245-2204 fits the 2003-2004 Ford Grand Marquis V8 4.6L and the 2003-2004 Mercury Marauder V8 4.6L, one sensor per car.
Does the Walker 245-2204 mass air flow sensor come with its housing?
No. Walker Products 245-2204 is the sensor only. The housing and mounting hardware are not included, and some vehicle makers recommend replacing the complete housing assembly.
How many terminals does the connector on this mass air flow sensor have?
This mass air flow sensor has six spade terminals in one male, rectangular connector. It also has two mounting holes.
Can rough idle or hesitation mean a mass air flow sensor is worn?
Yes, they can be signs of a worn sensor, and a shop can check its readings with a scan tool.
Does Walker Products 245-2204 replace Ford 3W7Z12B579AA?
Yes. 3W7Z12B579AA is on the interchange list for Walker Products 245-2204, along with 3W3F12B579AA, 3W3Z12B579AARM and MAF0043.
