How to Service the MAP Sensor on Mercury Milan?

Disconnection of the electrical connector from the MAP sensor should be the first procedure in servicing the MAP sensor. Pull out the sensor by removing its screw first followed by disconnecting its electrical connector. A proper installation of the new sensor requires tight torque settings at 3 Nm (27 lb-in). The MAP sensor O-ring must receive cleaning engine oil during its installation process. The service ends with reversing all steps to complete the installation of new components.

How to service the MAP Sensor on Mercury Mariner?

The Manifold Absolute Pressure (MAP) sensor service requires placing the vehicle on a hoist in neutral position. The first step involves disconnecting the MAP sensor electrical connector before unscrewing the MAP sensor with the help of KD Tool #58181 or a Lisle T25 Torx Bit. The new sensor should get tightened to 3 Nm following installation. Engine oil should be used to lubricate the MAP sensor O-ring seal before applying the reverse steps for installation.

OEM Mercury MAP Sensor

Manifold Air Pressure Sensor

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Mercury M.A.P. Sensor Part Number: 1S7Z-9F479-AD
$76.02 MSRP: $125.09
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Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; Manifold Sensor; Map Sensor; Sensor; Pressure Sensor
- Replaces: 1S7Z-9F479-AA, 4S4Z-9F479-AA, CX-1976, 1S7Z-9F479-AC, CX-2559
Fits the following Mercury Models:
- Mariner | 2005-2011 | Base, Convenience, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- Milan | 2006-2011 | Base, Hybrid, Premier | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Map Sensor Part Number: F8XZ-9F479-AB
$132.90 MSRP: $180.85
You Save: $47.95 (27%)
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Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; Pressure Sensor
Fits the following Mercury Models:
- Villager | 1999-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
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Mercury M.A.P. Sensor, Passenger Side Part Number: AU2Z-9F479-A
$61.77 MSRP: $101.64
You Save: $39.87 (40%)
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Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; Manifold Sensor; Pressure Sensor; Map Sensor; Sensor
- Position: Passenger Side
- Replaces: E7FZ-9F479-A
Fits the following Mercury Models:
- Colony Park | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1984-1991 | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
- Marquis | 1985-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS
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Mercury Map Sensor Part Number: E7DZ9F479A
$69.21 MSRP: $94.19
You Save: $24.98 (27%)
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Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; Pressure Sensor
Fits the following Mercury Models:
- Colony Park | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
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Mercury M.A.P. Sensor, Passenger Side Part Number: E6FZ-9F479-A
Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; Pressure Sensor; MAP Sensor
- Position: Passenger Side
Fits the following Mercury Models:
- Grand Marquis | 1984-1986 | Base, Colony Park, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
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Mercury M.A.P. Sensor Part Number: 6E5Z-9F479-BA
Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; MAP Sensor; Pressure Sensor
- Replaces: 6E5Z-9F942-BA
Fits the following Mercury Models:
- Mariner | 2009-2011 | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Milan | 2006-2011 | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Map Sensor Part Number: 5L8Z-9F479-AA
Product Specifications
- Other Name: Sensor Assembly; Manifold Absolute Pressure Sensor; Pressure Sensor
Fits the following Mercury Models:
- Mariner | 2008 | Base, Premier | 6 Cyl 3.0 L GAS

Mercury MAP Sensor

If you own Mercury and want to keep it in top shape, choosing OEM MAP Sensor is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Mercury MAP Sensor at some of the affordable online prices without cutting quality. Every OEM Mercury part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Mercury MAP Sensor is an intake pressure sensor that adjusts the fuel supply in real time to provide cleaner power. Mercury combined brisk acceleration with a smooth ride, gave flashy looks to cabin-quieting road noise, plush seats, and kept the dashboards simple, donned the name of the Roman messenger with pride, launched Cougars and Grand Marquis that could give you value with real comfort, and as the market changed it gave suspensions and insulation a makeover making it both fun and sensible. Mercury had already demonstrated that you could drive a mid-size car and feel luxurious without draining wallets and this formed the foundation of a reputation of cars that suck up miles in silence, turn corners with control, and traverse ten years of commute without a lot of trouble. In that school of thought, the new MAP Sensor in Mercury engines transforms manifold vacuum into clear voltage that is decoded immediately, ensuring injector pulse width and ignition timing remain constant to real airflow, cutting down misfires, enhancing throttle snap, and increasing mpg when the car is cruising at sea level or making the climb to the mountain apex. In both naturally aspirated and turbo engine designs, the MAP Sensor maintains a tight calibration by avoiding heat soak and vibration, therefore the signal remains constant and the engine computer never shifts into either rich or lean that robs power. A well-maintained MAP Sensor thus implies a smoother idle, faster start, and cleaner tailpipe each and every day.

Mercury MAP Sensor Parts and Q&A

M.A.P. Sensor
1S7Z-9F479-AD
Q: How to Service the MAP Sensor on Mercury Milan?
A:
Disconnection of the electrical connector from the MAP sensor should be the first procedure in servicing the MAP sensor. Pull out the sensor by removing its screw first followed by disconnecting its electrical connector. A proper installation of the new sensor requires tight torque settings at 3 Nm (27 lb-in). The MAP sensor O-ring must receive cleaning engine oil during its installation process. The service ends with reversing all steps to complete the installation of new components.
M.A.P. Sensor
6E5Z-9F479-BA
Q: How to service the MAP Sensor on Mercury Mariner?
A:
The Manifold Absolute Pressure (MAP) sensor service requires placing the vehicle on a hoist in neutral position. The first step involves disconnecting the MAP sensor electrical connector before unscrewing the MAP sensor with the help of KD Tool #58181 or a Lisle T25 Torx Bit. The new sensor should get tightened to 3 Nm following installation. Engine oil should be used to lubricate the MAP sensor O-ring seal before applying the reverse steps for installation.