How to Address Issues with the Rear Vehicle Speed Sensor on a Mercury Grand Marquis?

Open the fire suppression system and take away the rear seat cushion, and disconnect the rear wheel speed sensor. Switch off electricity prior to lifting of the vehicle. Take out the old sensor and put in the new sensor and re-power the fire suppression system where appropriate.

How to Service and Repair a Vehicle Speed Sensor (VSS) on Mercury Mariner?

To repair the Vehicle Speed Sensor (VSS), lift the vehicle on a hoist with the transmission in neutral. Access the VSS and its electrical connector from the top of the transaxle, then remove the VSS bolt. Disconnect the connector and remove the VSS. To install, follow the removal steps in reverse.

OEM Mercury Vehicle Speed Sensor

VSS

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18 Vehicle Speed Sensors found

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Mercury Speed Sensor Part Number: XF2Z-7H103-AA
$27.40 MSRP: $37.29
You Save: $9.89 (27%)
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Product Specifications
- Other Name: Sensor Assembly - Engine; Vehicle Speed Sensor; Sensor Assembly - Engine Speed
- Manufacturer Note: 3.0L/3.8L
Fits the following Mercury Models:
- Sable | 1996-1999 | G, GS, LS, LS Premium | 6 Cyl 3.0 L GAS
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Mercury Speed Sensor Part Number: XW4Z-7H103-AA
$25.95 MSRP: $41.20
You Save: $15.25 (38%)
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Product Specifications
- Other Name: Sensor Assembly - Engine Speed; Automatic Transmission Speed Sensor; Crankshaft Position Sensor; Vehicle Speed Sensor
Fits the following Mercury Models:
- Mountaineer | 2004-2005 | 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 Vehicle Speed Sensor Part Number: 1S7Z-7M101-KA
$27.83 MSRP: $44.20
You Save: $16.37 (38%)
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Product Specifications
- Other Name: Sensor - Turbine Shaft Speed; Automatic Transmission Speed Sensor; Sensor - Turbine Shaft Speed - Tss
- Replaces: XS7Z-7M101-KA
Fits the following Mercury Models:
- Mariner | 2005-2007 | Base, Convenience, Hybrid, Luxury, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Speed Sensor Part Number: E9LZ-9E731-A
$207.17 MSRP: $344.00
You Save: $136.83 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly - Engine Speed; Vehicle Speed Sensor; Speedometer Sensor; Sensor
- Replaces: E45Y-9E731-A, E6DZ-9E731-D
Fits the following Mercury Models:
- Cougar | 1984-1997 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Grand Marquis | 1992-2005 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
- Marquis | 1984-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG, 6 Cyl 3.8 L GAS
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
- Sable | 1993, 1986-1991 | GS, LS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
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Mercury Speed Sensor Part Number: YF1Z-7H103-AA
$169.23 MSRP: $230.30
You Save: $61.07 (27%)
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Product Specifications
- Other Name: Sensor - Output Shaft; Vehicle Speed Sensor; Sensor - Output Shaft Speed
- Manufacturer Note: Sensor - OSS, 1F2P-C*
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
- Sable | 2000-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Speed Sensor Part Number: E9TZ-9E731-A
$209.58 MSRP: $348.00
You Save: $138.42 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly - Tripminder; Vehicle Speed Sensor; Speed Sensor Assembly
- Replaces: E3AZ-9E731-A, E6DZ-9E731-C
Fits the following Mercury Models:
- Capri | 1984-1986 | GS, RS, RS Turbo | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Cougar | 1991 | LS, XR-7 | 8 Cyl 5.0 L GAS
- Sable | 1986-1995 | GS, LS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
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Mercury Vehicle Speed Sensor Part Number: 6L8Z-7H103-AA
$56.57 MSRP: $94.80
You Save: $38.23 (41%)
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Product Specifications
- Other Name: Sensor Assembly - Engine Speed
- Manufacturer Note: Sensor - Output Shaft Speed
- Replaces: F8RZ-7H103-AA
Fits the following Mercury Models:
- Mariner | 2005-2007 | Base, Convenience, Hybrid, Luxury, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Vehicle Speed Sensor Part Number: 6L3Z-7H103-AA
$50.49 MSRP: $81.45
You Save: $30.96 (39%)
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Product Specifications
- Other Name: Sensor Assembly - Engine Speed; Automatic Transmission Speed Sensor
- Replaces: 3L3Z-7H103-AA
Fits the following Mercury Models:
- Grand Marquis | 2006-2011 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Vehicle Speed Sensor Part Number: F5RZ-9E731-CB
$18.80 MSRP: $26.01
You Save: $7.21 (28%)
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Product Specifications
- Other Name: Sensor Assembly - Tripminder
- Replaces: F5RZ-9E731-CA
Fits the following Mercury Models:
- Mystique | 1995 | Base, GS, GS Spree, LS Young America | 6 Cyl 2.5 L GAS
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Mercury Speed Sensor Part Number: F5RZ-9E731-BD
$36.86 MSRP: $50.99
You Save: $14.13 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly - Speed; Vehicle Speed Sensor
- Replaces: F5RZ-9E731-BC
Fits the following Mercury Models:
- Mystique | 1995-2000 | Base, GS, GS Spree, LS, LS Young America | 6 Cyl 2.5 L GAS
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Mercury Vehicle Speed Sensor Part Number: F1KY-9E731-AB
$51.55 MSRP: $71.31
You Save: $19.76 (28%)
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Product Specifications
- Other Name: Gear - Speedometer
Fits the following Mercury Models:
- Tracer | 1992-1996 | Base, Trio | 4 Cyl 1.9 L GAS
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Mercury Speed Sensor Part Number: F5RZ-9E731-AC
$55.53 MSRP: $76.82
You Save: $21.29 (28%)
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Product Specifications
- Other Name: Sensor Assembly - Speed; Vehicle Speed Sensor
Fits the following Mercury Models:
- Mystique | 1995-2000 | Base, GS, GS Spree, LS, LS Young America | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Vehicle Speed Sensor Part Number: YF5Z-9E731-AA
$85.09 MSRP: $117.71
You Save: $32.62 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly - Trip Meter; Sensor Assembly - Tripminder
- Manufacturer Note: FROM 6/00
Fits the following Mercury Models:
- Villager | 1993-2000 | Base, Estate, GS, LS, Nautica, Sport | 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
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Mercury Vehicle Speed Sensor Part Number: 1F5Z-9E731-AA
$92.19 MSRP: $127.54
You Save: $35.35 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly - Tripminder
Fits the following Mercury Models:
- Villager | 2001-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
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Mercury Vehicle Speed Sensor Part Number: F1KY9E731BA
Product Specifications
- Other Name: Gear - Speedometer
Fits the following Mercury Models:
- Tracer | 1992-1996 | LTS | 4 Cyl 1.8 L GAS
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Mercury Speed Sensor Part Number: E6DZ9E731B
Product Specifications
- Other Name: Sensor Assembly - Speed
Fits the following Mercury Models:
- Sable | 1986 | GS | 4 Cyl 2.5 L GAS
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Mercury Speed Sensor Part Number: E43Z-9E731-A
Product Specifications
- Other Name: Sensor Assembly - Trip Meter; Vehicle Speed Sensor; Sensor Assembly - Tripminder
Fits the following Mercury Models:
- Sable | 1986 | GS | 4 Cyl 2.5 L GAS
- Topaz | 1984-1994 | Base, GS, GS AWD, LS, LS AWD, LTS, LTS AWD, Sport, Sport AWD, XR5, XR5 AWD | 4 Cyl 2.0 L DIESEL, 4 Cyl 2.3 L GAS
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Mercury Speed Sensor Part Number: 94BZ-9E731-AA
Product Specifications
- Other Name: Sensor Assembly - Trip Meter; Vehicle Speed Sensor
Fits the following Mercury Models:
- Mystique | 1995 | Base, GS, GS Spree, LS, LS Young America | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS

Mercury Vehicle Speed Sensor Parts and Q&A

Vehicle Speed Sensor
6L3Z-7H103-AA
Q: How to Address Issues with the Rear Vehicle Speed Sensor on a Mercury Grand Marquis?
A: Open the fire suppression system and take away the rear seat cushion, and disconnect the rear wheel speed sensor. Switch off electricity prior to lifting of the vehicle. Take out the old sensor and put in the new sensor and re-power the fire suppression system where appropriate.
Vehicle Speed Sensor
1S7Z-7M101-KA
Q: How to Service and Repair a Vehicle Speed Sensor (VSS) on Mercury Mariner?
A: To repair the Vehicle Speed Sensor (VSS), lift the vehicle on a hoist with the transmission in neutral. Access the VSS and its electrical connector from the top of the transaxle, then remove the VSS bolt. Disconnect the connector and remove the VSS. To install, follow the removal steps in reverse.