How to adjust and replace the Neutral Safety Switch on the Mercury Grand Marquis?

This procedure applies to 1992 models with the AODE transmission and all 1993 and later models. The Transmission Range (TR) sensor, located at the manual lever on the transmission, serves as an information sensor for the powertrain control module (PCM), preventing the engine from starting in any gear other than Park or Neutral and activating the back-up lights when the shift lever is in Reverse. To adjust the sensor, follow the transmission shift control cable adjustment and ensure a distinct "click" is felt when selecting each gear. If the engine starts in any position other than Park or Neutral, the TR sensor may be out of adjustment or defective; a functional check should be performed to verify its operation. For vehicles with air suspension, deactivate the system before raising the vehicle securely on jackstands. To check the sensor, turn the ignition to On, place the shift lever in Reverse, and verify the back-up lights. If the lights come on but the engine starts in the wrong gears, the sensor may be defective. If the lights do not come on, detach the shift cable, loosen the sensor retaining bolts, and adjust the sensor until the lights activate, then tighten the bolts and reattach the cable. If the back-up lights and circuit are functioning but the sensor still does not work, it may need replacement. For replacement, deactivate the air suspension system, raise the vehicle on jackstands, unplug the electrical connector from the TR sensor, detach the shift cable, remove the manual lever, and take out the TR sensor retaining bolts before removing the sensor itself. Installation is the reverse of removal, ensuring the sensor retaining screws are tightened securely. Finally, lower the vehicle and reactivate the air suspension system if applicable.

OEM Mercury Neutral Safety Switch

Transmission Neutral Safety Switch

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

16 Neutral Safety Switches found

View related parts
Mercury Neutral Safety Switch Part Number: 6L8Z-7F293-AA
$59.89 MSRP: $98.55
You Save: $38.66 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Manual Lever Position; Range Sensor; Sensor - Manual Lever Position - Mlps
- Replaces: YL8Z-7F293-AA
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base, S, V6 | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- Mariner | 2005-2008 | 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
View related parts
Mercury Range Sensor Part Number: 6E5Z-7F293-A
$80.36 MSRP: $134.91
You Save: $54.55 (41%)
ADD TO CART
Product Specifications
- Other Name: Sensor - Manual Lever Position; Sensor - Manual Lever Position - Mlps
Fits the following Mercury Models:
- Milan | 2006-2009 | Base, Premier | 4 Cyl 2.3 L GAS
View related parts
Mercury Range Sensor Part Number: 5L2Z-7F293-AA
$54.66 MSRP: $91.60
You Save: $36.94 (41%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Manual Lever Position; Neutral Safety Switch; Sensor - Manual Lever Position - Mlps
- Replaces: 1L2Z-7F293-AA
Fits the following Mercury Models:
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
View related parts
Mercury Range Sensor Part Number: F6CZ-7A247-AA
$91.88 MSRP: $125.03
You Save: $33.15 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly
- Manufacturer Note: #FBO2 21444-A, 2.0L
Fits the following Mercury Models:
- Tracer | 1991-1999 | Base, GS, LS, LTS, Trio | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: YF5Z7A247AA
$14.23 MSRP: $19.69
You Save: $5.46 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch - Neutral Sensing
Fits the following Mercury Models:
- Villager | 1999-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: F6XZ-7A247-AA
$22.20 MSRP: $30.71
You Save: $8.51 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch Assembly - Starter; Switch Assembly - Starter Inhibitor
- Manufacturer Note: 31918,80x02, BEFORE 5/96
- Replaces: F3XY-7A247-A
Fits the following Mercury Models:
- Villager | 1993-1996 | GS, LS, Nautica | 6 Cyl 3.0 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: F5DZ-7F293-BA
Product Specifications
- Other Name: Sensor - Manual Lever Position; Range Sensor; Sensor - Manual Lever Position - Mlps
- Manufacturer Note: Analog type , 8 pin, AFTER 9/26/96
- Replaces: F5DZ-7F293-AA
Fits the following Mercury Models:
- Sable | 1992-1997 | G, GS, LS, LTS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: D6RY-7A247-B
Product Specifications
- Other Name: Switch Assembly - Starter; Back Up Light Switch; Range Sensor; Back-Up Switch; Switch Assembly - Starter Inhibitor
Fits the following Mercury Models:
- Capri | 1984-1986 | 5.0, GS, RS, RS Turbo | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Colony Park | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Cougar | 1984-1991 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 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
View More
View related parts
Mercury Neutral Safety Switch Part Number: F7LZ-7F293-AB
$57.48 MSRP: $91.27
You Save: $33.79 (38%)
Product Specifications
- Other Name: Sensor - Manual Lever Position; Transmission Range Sensor; Transmiss Range Sensor; Range Sensor; Back-Up & Neutral Safety Switch; Sensor - Manual Lever Position - Mlps
- Replaces: F7LZ-7F293-AA
Fits the following Mercury Models:
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: E1FZ-7A247-A
Product Specifications
- Other Name: Switch - Neutral Sensing
Fits the following Mercury Models:
- Sable | 1986-1991 | GS, LS | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 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, 6 Cyl 3.0 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: F8DZ-7F293-AD
$74.31 MSRP: $118.00
You Save: $43.69 (38%)
Product Specifications
- Other Name: Sensor - Manual Lever Position; Range Sensor; Sensor - Manual Lever Position - Mlps
- Replaces: F8DZ-7F293-AB, F8DZ-7F293-AC
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
- Sable | 1998-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: F8AZ-7F293-AA
$69.62 MSRP: $110.55
You Save: $40.93 (38%)
Product Specifications
- Other Name: Sensor - Manual Lever Position; Range Sensor; Sensor - Manual Lever Position - Mlps
- Manufacturer Note: Digital TRS, FROM 11/10/97
Fits the following Mercury Models:
- Grand Marquis | 1998-2011 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: FOVY-7A247-A
Product Specifications
- Other Name: Switch - Neutral Sensing; Back Up Light Switch; Range Sensor; Back-Up Switch
- Manufacturer Note: 4 PRONG CONN.
Fits the following Mercury Models:
- Cougar | 1992-1997 | LS, XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
- Grand Marquis | 1992-1997 | GS, LS | 8 Cyl 4.6 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: F6XZ7A247BA
Product Specifications
- Other Name: Switch - Neutral Sensing
Fits the following Mercury Models:
- Villager | 1997-1998 | GS, LS, Nautica | 6 Cyl 3.0 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: E8DZ-7A247-A
Product Specifications
- Other Name: Switch - Neutral Sensing
Fits the following Mercury Models:
- Sable | 1987-1991 | GS, LS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
View related parts
Mercury Neutral Safety Switch Part Number: E2DZ-7A247-A
Product Specifications
- Other Name: Switch - Neutral Sensing; Back Up Light Switch; Back-Up Switch
- Manufacturer Note: TRANS:C5 *SW-1745, replaces E27P 7A247-AA
Fits the following Mercury Models:
- Capri | 1984-1986 | 5.0, GS, RS, RS Turbo | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Cougar | 1984-1986 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS

Mercury Neutral Safety Switch

If you own Mercury and want to keep it in top shape, choosing OEM Neutral Safety Switch 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 Neutral Safety Switch 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 Neutral Safety Switch will not start the engine unless the item is firmly in park or neutral. Mercury succeeded by mixing the comfortable ride with the curbs that swivel heads without empty pockets. Mercury interiors reduced road noise by a significant margin allowing families to converse rather than scream. Mercury cabins remained spacious, which was an advantage that allowed long drives to seem shorter. Mercury continued to release comfort tweaks despite the changing preferences of the market over the decades. Showrooms were marketing the use of the mid-sized that offered a balance of smooth suspension, clean styling, and strong value to those buyers interested in no-nonsense traveling. The drivers liked the fact that the marque struck a balance between spirited V8s and easy steering that allowed them to easily perform maneuvers in the parking lot. Neutral Safety Switch is placed on the transmission lever and only allows a flow of current when the lever is facing either park or neutral. Neutral Safety Switch prevents unexpected lurches when igniting and prevents passengers against driveway accidents. Neutral Safety Switch is also applied in relaying the data to the reverse light circuit to ensure that the bulbs switch on precisely when required. The Neutral Safety Switch is capable of enduring years of heat and vibration due to heavyweight connections and closed enclosures.

Mercury Neutral Safety Switch Parts and Q&A

Neutral Safety Switch
FOVY-7A247-A
Q: How to adjust and replace the Neutral Safety Switch on the Mercury Grand Marquis?
A:
This procedure applies to 1992 models with the AODE transmission and all 1993 and later models. The Transmission Range (TR) sensor, located at the manual lever on the transmission, serves as an information sensor for the powertrain control module (PCM), preventing the engine from starting in any gear other than Park or Neutral and activating the back-up lights when the shift lever is in Reverse. To adjust the sensor, follow the transmission shift control cable adjustment and ensure a distinct "click" is felt when selecting each gear. If the engine starts in any position other than Park or Neutral, the TR sensor may be out of adjustment or defective; a functional check should be performed to verify its operation. For vehicles with air suspension, deactivate the system before raising the vehicle securely on jackstands. To check the sensor, turn the ignition to On, place the shift lever in Reverse, and verify the back-up lights. If the lights come on but the engine starts in the wrong gears, the sensor may be defective. If the lights do not come on, detach the shift cable, loosen the sensor retaining bolts, and adjust the sensor until the lights activate, then tighten the bolts and reattach the cable. If the back-up lights and circuit are functioning but the sensor still does not work, it may need replacement. For replacement, deactivate the air suspension system, raise the vehicle on jackstands, unplug the electrical connector from the TR sensor, detach the shift cable, remove the manual lever, and take out the TR sensor retaining bolts before removing the sensor itself. Installation is the reverse of removal, ensuring the sensor retaining screws are tightened securely. Finally, lower the vehicle and reactivate the air suspension system if applicable.