Mercury Grand Marquis EVP Position Sensor Replacement at your home or office.

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EVP Position Sensor Replacement Service

How much does a EVP Position Sensor Replacement cost?

On average, the cost for a Mercury Grand Marquis EVP Position Sensor Replacement is $199 with $85 for parts and $114 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1982 Mercury Grand MarquisV8-4.2LService typeEVP Position Sensor ReplacementEstimate$307.23Shop/Dealer Price$361.54 - $497.47
1984 Mercury Grand MarquisV8-5.0LService typeEVP Position Sensor ReplacementEstimate$283.23Shop/Dealer Price$337.56 - $473.51
1996 Mercury Grand MarquisV8-4.6LService typeEVP Position Sensor ReplacementEstimate$311.73Shop/Dealer Price$369.06 - $507.26
1977 Mercury Grand MarquisV8-6.6LService typeEVP Position Sensor ReplacementEstimate$283.23Shop/Dealer Price$337.53 - $473.46
1984 Mercury Grand MarquisV8-5.8LService typeEVP Position Sensor ReplacementEstimate$283.23Shop/Dealer Price$337.58 - $473.54
1983 Mercury Grand MarquisV8-5.0LService typeEVP Position Sensor ReplacementEstimate$283.23Shop/Dealer Price$337.56 - $473.50
1995 Mercury Grand MarquisV8-4.6LService typeEVP Position Sensor ReplacementEstimate$319.23Shop/Dealer Price$376.36 - $514.40
1975 Mercury Grand MarquisV8-6.6LService typeEVP Position Sensor ReplacementEstimate$289.23Shop/Dealer Price$343.84 - $480.00
Show example Mercury Grand Marquis EVP Position Sensor Replacement prices

What is the EVP Position Sensor all about?

Vehicle manufacturers have been improving methods of controlling vehicle emissions in their fossil-fuel burning engines since the introduction of the exhaust gas recirculation (EGR) system in 1966. The EGR system brings exhaust gases containing unburned fuel back into the intake manifold where it goes through the combustion process again to cleanly burn the exhaust gases. As the EGR systems advanced, they went from using a vacuum system that controls the flow to an electric valve that opens, closes, and regulates the flow of exhaust gases.

The EGR system employs a valve position (EVP) sensor to detect the position of the gate allowing gases into the intake manifold. This EVP position sensor relays information back to the engine control module, which adjusts the amount of EGR valve flow to run most efficiently. The communication is performed several times per second and the EVP position sensor never ceases to operate while the engine is running.

If the EVP position sensor fails, the Check Engine light will come on. The engine may not start or run easily when cold.

Keep in mind:

  • Exhaust systems run extremely hot and should not be worked on until they’ve been allowed to completely cool down.
  • EVP problems have similar symptoms to many other issues and should be properly diagnosed by one of our expert mechanics.

How it's done:

  • The EVP sensor is faulty and needs replacement
  • The defective EVP sensor is removed
  • The new EVP sensor is installed
  • The engine is scanned for codes
  • The vehicle is road tested for proper operation and no check engine light comes on.

Our recommendation:

If you suspect you have a faulty EVP position sensor, have one of our expert mechanics perform a diagnostic test on the EGR system. Have the EVP position sensor replaced if necessary.

What common symptoms indicate you may need to replace the EVP Position Sensor?

  • Check Engine light is on
  • Engine is difficult to start when cold
  • Engine runs rough when cold
  • Vehicle has failed a smog test

How important is this service?

In addition to failing a smog test, your vehicle’s engine may not start or run well on a cold start, or may run poorly at idle. Have the EVP position sensor replaced as soon as possible.

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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(390)

Rating Summary
368
12
4
2
4
368
12
4
2
4

Jeremy

20 years of experience
597 reviews
Jeremy
20 years of experience
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Lake Worth, Florida
Great

Michael

16 years of experience
606 reviews
Michael
16 years of experience
Mercury Grand Marquis V8-4.6L - Car is shaking or vibrating Inspection - Atlanta, Georgia
Michael was awesome he knew the exact problem with my car after ive encounteted several visits to shops.and he took the time to explain to me everything that was going on.i had no questions to ask , he answered all of them.and got me booked for repairs.

Joseph

20 years of experience
60 reviews
Joseph
20 years of experience
Mercury Grand Marquis V8-4.6L - Crankshaft Harmonic Balancer - Austin, Texas
He was great. Very respectful and worked pretty fast. A+ in my book

Michael

22 years of experience
77 reviews
Michael
22 years of experience
Mercury Grand Marquis V8-4.6L - Starter - Land O Lakes, Florida
Great experience!!

Excellent Rating

(390)

Rating Summary
368
12
4
2
4
368
12
4
2
4
Number of Mercury Grand Marquis services completed
4290+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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