How to service the Throttle Position Sensor on a 4.6L (3V) engine on Mercury Mountaineer?

Take out air cleaner outlet pipe, push aside PCV fitting/hoses, discard O-ring, remove TP sensor connector. Turn screws 1-2 1/2 turns by hand and then loosen screws 1-2, then use driver to remove screws and sensor. Install new sensor, arrange tab to hole, tighten to 3 Nm; reconnect, position new O-ring, re-fit PCV fitting, outlet pipe.

How to service the Throttle Position Sensor on Mercury Sable?

Servicing Throttle Position (TP) Sensor requires first loosening the battery ground cable and the electronic connector to the sensor. Unscrew the screws in the TP sensor and remove it. Installation is to undo the steps in order to fix the new or repaired TP sensor.

OEM Mercury Throttle Position Sensor

TPS Switch

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26 Throttle Position Sensors found

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Mercury Throttle Position Sensor Part Number: F2AZ-9B989-AA
$39.67 MSRP: $63.00
You Save: $23.33 (38%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Sensor
- Replaces: F2AZ-9B989-A
Fits the following Mercury Models:
- Grand Marquis | 1992-1994 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Throttle Position Sensor Part Number: 6L2Z-9B989-D
$88.26 MSRP: $145.22
You Save: $56.96 (40%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Pos Sensor; Throttle Sensor; Potentiometer
- Replaces: 3L5Z-9B989-AA, 6L2Z-9B989-B, 6L2Z-9B989-A, DY-1049
Fits the following Mercury Models:
- Grand Marquis | 2005-2011 | GS, GSL, Limited Edition, LS, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Mountaineer | 2004-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Throttle Position Sensor Part Number: F4SZ-9B989-AA
$49.93 MSRP: $82.16
You Save: $32.23 (40%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Pos Sensor; Fuel Injector; Throttle Sensor; Potentiometer; Injector
- Replaces: F4SZ-9B989-A
Fits the following Mercury Models:
- Cougar | 1994-1997 | XR-7 | 8 Cyl 4.6 L GAS
- Grand Marquis | 1995-2004 | GS, LS, LSE | 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
- Mountaineer | 1998-2003 | Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
- Sable | 1996-2002 | G, GS, LS, LS Premium | 6 Cyl 3.0 L GAS
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Mercury Throttle Position Sensor Part Number: F57Z-9B989-A
$38.41 MSRP: $61.00
You Save: $22.59 (38%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Sensor
Fits the following Mercury Models:
- Mountaineer | 1998-2000 | Base | 6 Cyl 4.0 L GAS
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Mercury Throttle Position Sensor Part Number: F3DZ-9B989-BA
$38.95 MSRP: $53.88
You Save: $14.93 (28%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Pos Sensor; Throttle Sensor
- Replaces: F3DZ-9B989-B
Fits the following Mercury Models:
- Sable | 1993-1995 | GS, LS, LTS | 6 Cyl 3.0 L GAS
- Topaz | 1993-1994 | GS | 6 Cyl 3.0 L GAS
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Mercury Throttle Position Sensor Part Number: F2SZ-9B989-BA
$17.65 MSRP: $24.42
You Save: $6.77 (28%)
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Product Specifications
- Other Name: Potentiometer - Engine; Potentiometer
Fits the following Mercury Models:
- Cougar | 1994-1995 | XR-7 | 6 Cyl 3.8 L GAS
- Sable | 1993-1995 | GS, LS | 6 Cyl 3.8 L GAS
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Mercury Throttle Position Sensor Part Number: F3CZ-9B989-BA
$42.92 MSRP: $58.41
You Save: $15.49 (27%)
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Product Specifications
- Other Name: Potentiometer - Engine
Fits the following Mercury Models:
- Tracer | 1991-1996 | Base, Trio | 4 Cyl 1.9 L GAS
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Mercury Throttle Position Sensor Part Number: F33Z9B989AA
$34.69 MSRP: $47.21
You Save: $12.52 (27%)
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Product Specifications
- Other Name: Potentiometer - Engine
Fits the following Mercury Models:
- Topaz | 1993-1994 | GS | 4 Cyl 2.3 L GAS
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Mercury Throttle Position Sensor Part Number: E6PZ9B989A
$25.93 MSRP: $35.29
You Save: $9.36 (27%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle
Fits the following Mercury Models:
- Sable | 1986 | GS | 4 Cyl 2.5 L GAS
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Mercury Throttle Position Sensor Part Number: E8DZ9B989A
$23.57 MSRP: $32.07
You Save: $8.50 (27%)
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Product Specifications
- Other Name: Potentiometer - Engine
Fits the following Mercury Models:
- Colony Park | 1990-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1990-1991 | GS, LS | 8 Cyl 5.0 L GAS
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Mercury Throttle Position Sensor Part Number: F1DZ9B989AB
$31.52 MSRP: $42.89
You Save: $11.37 (27%)
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Product Specifications
- Other Name: Potentiometer - Engine Throttle
Fits the following Mercury Models:
- Topaz | 1992 | GS, LS, LTS, Sport | 4 Cyl 2.3 L GAS
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Mercury Throttle Position Sensor Part Number: F4ZZ-9B989-A
$37.51 MSRP: $58.55
You Save: $21.04 (36%)
Product Specifications
- Other Name: Potentiometer - Engine Throttle; Potentiometer
Fits the following Mercury Models:
- Cougar | 1996-1997 | XR-7 | 6 Cyl 3.8 L GAS
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Mercury Throttle Position Sensor Part Number: F2DZ-9B989-BA
$33.20 MSRP: $51.82
You Save: $18.62 (36%)
Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Pos Sensor
- Replaces: F2DZ-9B989-B
Fits the following Mercury Models:
- Sable | 1992 | GS, LS | 6 Cyl 3.0 L GAS
- Topaz | 1992 | GS, LTS, Sport, XR5 | 6 Cyl 3.0 L GAS
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Mercury Throttle Position Sensor Part Number: 1F5Z-9B989-AA
Product Specifications
- Other Name: Potentiometer - Engine Throttle; Throttle Pos Sensor
- Replaces: F6XZ-9B989-BA
Fits the following Mercury Models:
- Villager | 1996-2002 | Base, Estate, GS, LS, Nautica, Sport | 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
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Mercury Throttle Position Sensor Part Number: F2SZ-9B989-CA
Product Specifications
- Other Name: Potentiometer - Engine; Potentiometer
Fits the following Mercury Models:
- Cougar | 1994-1995 | XR-7 | 6 Cyl 3.8 L GAS
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Mercury Throttle Position Sensor Part Number: E3PZ9B989A
Product Specifications
- Other Name: Sensor - Throttle Position
Fits the following Mercury Models:
- Cougar | 1984 | XR-7 | 4 Cyl 2.3 L GAS
- Grand Marquis | 1984-1985 | Base, Colony Park, LS | 8 Cyl 5.0 L GAS
- Marquis | 1984 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG
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Mercury Throttle Position Sensor Part Number: E5FZ9B989C
Product Specifications
- Other Name: Emission Part
Fits the following Mercury Models:
- Capri | 1984-1985 | GS, RS Turbo | 4 Cyl 2.3 L GAS
- Cougar | 1984 | Base, LS | 8 Cyl 5.0 L GAS
- Lynx | 1984-1985 | Base, GL, GS, L, LS, LTS, RS, XR3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
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Mercury Throttle Position Sensor Part Number: E6FZ9B989A
Product Specifications
- Other Name: Potentiometer - Engine; Potentiometer - Engine Throttle
Fits the following Mercury Models:
- Lynx | 1986 | Base, GS, L, XR3 | 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
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Mercury Throttle Position Sensor Part Number: E7AZ-9B989-AA
Product Specifications
- Other Name: Potentiometer - Engine; Throttle Pos Sensor; Potentiometer
Fits the following Mercury Models:
- Cougar | 1988-1993 | LS, XR-7 | 6 Cyl 3.8 L GAS
- Sable | 1988-1992 | GS, LS | 6 Cyl 3.8 L GAS
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Mercury Throttle Position Sensor Part Number: E8AZ9B989A
Product Specifications
- Other Name: Potentiometer - Engine Throttle
Fits the following Mercury Models:
- Colony Park | 1989 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1989 | GS, LS | 8 Cyl 5.0 L GAS

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Mercury Throttle Position Sensor Parts and Q&A

Throttle Position Sensor
6L2Z-9B989-D
Q: How to service the Throttle Position Sensor on a 4.6L (3V) engine on Mercury Mountaineer?
A: Take out air cleaner outlet pipe, push aside PCV fitting/hoses, discard O-ring, remove TP sensor connector. Turn screws 1-2 1/2 turns by hand and then loosen screws 1-2, then use driver to remove screws and sensor. Install new sensor, arrange tab to hole, tighten to 3 Nm; reconnect, position new O-ring, re-fit PCV fitting, outlet pipe.
Throttle Position Sensor
F5RZ-9B989-BA
Q: How to service the Throttle Position Sensor on Mercury Sable?
A: Servicing Throttle Position (TP) Sensor requires first loosening the battery ground cable and the electronic connector to the sensor. Unscrew the screws in the TP sensor and remove it. Installation is to undo the steps in order to fix the new or repaired TP sensor.