Mercury Grand Marquis Neutral Safety Switch Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(357)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(357)

Neutral Safety Switch Replacement Service

How much does a Neutral Safety Switch Replacement cost?

On average, the cost for a Mercury Grand Marquis Neutral Safety Switch Replacement is $173 with $78 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercury Grand MarquisV8-4.6LService typeNeutral Safety Switch ReplacementEstimate$284.87Shop/Dealer Price$337.34 - $472.25
1980 Mercury Grand MarquisV8-5.0LService typeNeutral Safety Switch ReplacementEstimate$250.05Shop/Dealer Price$298.83 - $422.64
2009 Mercury Grand MarquisV8-4.6LService typeNeutral Safety Switch ReplacementEstimate$325.35Shop/Dealer Price$392.96 - $573.24
2000 Mercury Grand MarquisV8-4.6LService typeNeutral Safety Switch ReplacementEstimate$325.35Shop/Dealer Price$392.94 - $573.20
1978 Mercury Grand MarquisV8-5.8LService typeNeutral Safety Switch ReplacementEstimate$371.39Shop/Dealer Price$450.52 - $665.35
1984 Mercury Grand MarquisV8-5.8LService typeNeutral Safety Switch ReplacementEstimate$371.39Shop/Dealer Price$450.51 - $665.32
1986 Mercury Grand MarquisV8-5.8LService typeNeutral Safety Switch ReplacementEstimate$261.65Shop/Dealer Price$311.95 - $440.60
1980 Mercury Grand MarquisV8-5.8LService typeNeutral Safety Switch ReplacementEstimate$376.39Shop/Dealer Price$455.74 - $670.74
Show example Mercury Grand Marquis Neutral Safety Switch Replacement prices

What is the Neutral Safety Switch all about?

The neutral safety switch keeps the vehicle from starting when in any gear position other than Park or Neutral. In some vehicles, the switch also monitors gear selection and reverse light feedback data for the vehicle’s computer. Most often mounted to the left-hand side of the transmission, the switch is equipped in vehicles with a transaxle or automatic transmission. Some vehicle neutral safety switches are attached to the shifter mechanism.

Keep in mind:

  • Connected to the starter solenoid, the neutral safety switch completes the starter circuit, allowing the power from the battery to reach the starter only while the gearshift remains in Park or Neutral.
  • The mechanic will check the other systems in your vehicle’s ignition system, such as the starter, battery, and alternator, to make sure those parts are not causing the problem.
  • As a vehicle ages, the neutral safety switch deteriorates.

How it's done:

  • The vehicle is raised and supported on jack stands. The transmission shift lever and cable are removed. The electrical connector is removed from the switch.

  • The neutral safety switch is removed from the transmission. The transmission shaft seal is checked for leaks and replaced as needed.

  • The new neutral safety switch is installed on to the selector shaft and secured while aligning for proper installation alignment.

  • The shift lever and shift cable are reinstalled. The vehicle is checked for proper neutral safety switch operation before the vehicle is lowered off the jack stands.

  • The vehicle is scanned for codes and proper switch indication of gear ranges and road tested for proper operation.

Our recommendation:

Replace a faulty neutral safety switch as soon as possible; otherwise, the vehicle will stop working or suffer engine damage. When the switch does not work properly, the vehicle might jump into gear upon startup. This not only causes damage to the engine itself, but poses a great physical threat to surrounding objects and people. Our expert mechanics will diagnose the neutral safety switch to see if it needs adjustment.

Transmissions that exhibit excessive vibrations cause the switch to go out of alignment over time, which makes vehicle ignition more difficult. When inspecting the neutral safety switch, our expert mechanics check for dirt and grease build-up, moisture, and corrosion. They will also use a test light to confirm a connection through the switch to the starter solenoid.

What common symptoms indicate you may need to replace the Neutral Safety Switch?

  • Engine turns over in any gear, indicating that the neutral safety switch does not work properly and needs replacement
  • Vehicle doesn’t turn over when in Park or Neutral
  • Check Engine Light turns on after ignition

How important is this service?

Replace a faulty neutral safety switch promptly, as driving without a functional switch presents a danger to other drivers, passengers, and those around the vehicle. A faulty neutral safety switch damages the engine, as the vehicle jerks into gear upon startup. The reverse lights could stop working on some vehicles, which creates a safety hazard especially during inclement weather or nighttime.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(357)

Rating Summary
336
12
3
2
4
336
12
3
2
4

Chris

10 years of experience
31 reviews
Chris
10 years of experience
Grand Marquis 2002 - Tie Rod End - Salt Lake City, UT
Doesn't leave work unfinished, in my case he had to go get a part and a specific tool to finish thhe job.

Chris

10 years of experience
31 reviews
Chris
10 years of experience
Grand Marquis 2002 - Brake Pads - Salt Lake City, UT
Very thorough. Nice guy, does good work.

Jason

0 years of experience
417 reviews
Jason
0 years of experience
Grand Marquis 2001 - Air Spring Bag - Phoenix, AZ
came and took care of problem great guy

LAVELL

26 years of experience
129 reviews
LAVELL
26 years of experience
Grand Marquis 2001 - Check Engine Light is on - Oakland, CA
I was pleasantly surprised he was able to show up early. I wish I could figure out what the problem is, but he told me not to worry much and call for an appt if the light comes on again.

Excellent Rating

(357)

Rating Summary
336
12
3
2
4
336
12
3
2
4
Number of Mercury Grand Marquis services completed
3927+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

Child Seat Safety Laws in New Jersey
The The state of New Jersey mandates child seat safety laws in order to ensure that kids are safe when on the road. These rules are in place for the safety of your children, and they are founded in basic...
What are the Car Pool Rules in Hawaii?
Hawaii Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes (https://www.yourmechanic.com/article/top-10-scenic-drives-in-hawaii) are far better known than the state’s freeways. But, as with all states, freeways are an integral part of...
P0245 OBD-II Trouble Code: Turbocharger Wastegate Solenoid A Circuit Low
P0245 P0245 code definition Turbocharger Wastegate Solenoid A Circuit Low What the P0245 code means P0245 is an OBD-II generic code that the engine control module (ECM) detected the turbocharger wastegate solenoid A input circuit low is below specifications, indicating...

antifreeze leaking from under car

Coolant leaks are a common failure point for many vehicles. The most likely cause of a coolant leak is due to one of the heater hoses, radiator hose (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-radiator-hose), water pump (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-water-pump), radiator (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-radiator), or a coolant tank (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-coolant-reservoir). Leaks...

No key detected warning

Hi. It sounds to me like your battery ran out of juice. It's most likely that the battery inside your key died and simply needs replacement. When your battery dies in your key you should be able to start your...

Can I put a 2007 dodge caravan engine in a 2001 Dodge Caravan

There were 4 different engines used in the 2007 Caravan. Looking at an example, namely the 3.3L (VIN "R") that was used in model year 2007, the head and block casting numbers of that engine do not match the engine...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com