Mercury Grand Marquis Intermittent Wiper Relay 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

(391)

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

(391)

Intermittent Wiper Relay Replacement Service

How much does a Intermittent Wiper Relay Replacement cost?

On average, the cost for a Mercury Grand Marquis Intermittent Wiper Relay Replacement is $330 with $235 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 Mercury Grand MarquisV8-4.6LService typeIntermittent Wiper Relay ReplacementEstimate$585.09Shop/Dealer Price$712.62 - $1072.69
2007 Mercury Grand MarquisV8-4.6LService typeIntermittent Wiper Relay ReplacementEstimate$565.09Shop/Dealer Price$692.63 - $1052.72
1996 Mercury Grand MarquisV8-4.6LService typeIntermittent Wiper Relay ReplacementEstimate$565.09Shop/Dealer Price$692.63 - $1052.72
1980 Mercury Grand MarquisV8-5.0LService typeIntermittent Wiper Relay ReplacementEstimate$565.09Shop/Dealer Price$692.61 - $1052.68
1989 Mercury Grand MarquisV8-5.8LService typeIntermittent Wiper Relay ReplacementEstimate$565.09Shop/Dealer Price$692.65 - $1052.75
1988 Mercury Grand MarquisV8-5.0LService typeIntermittent Wiper Relay ReplacementEstimate$565.09Shop/Dealer Price$692.63 - $1052.72
1979 Mercury Grand MarquisV8-5.0LService typeIntermittent Wiper Relay ReplacementEstimate$570.09Shop/Dealer Price$697.50 - $1057.48
1975 Mercury Grand MarquisV8-6.6LService typeIntermittent Wiper Relay ReplacementEstimate$570.09Shop/Dealer Price$697.87 - $1058.14
Show example Mercury Grand Marquis Intermittent Wiper Relay Replacement prices

What is the Intermittent Wiper Relay all about?

In the distant past, windshield wiper operation had only 2 functions: on and off. Over time, car manufacturers introduced low, medium and high speeds, and eventually added intermittent wiper functionality. These series of developments provided drivers with a wider range of speeds for varying levels of precipitation.

This functionality relies on a component called a relay – the same technology that powers your fuel pump and keeps your car’s computer running. The relay uses electrical resistance relative to the position set on the wiper control arm to determine the specific speed at which the wipers move.

Because the intermittent wiper relay is electronic, it will inevitably fail and require replacement.

Keep in mind:

  • Intermittent wiper relay inspection is not part of most maintenance services.
  • Without the relay, your wipers will still work, but they will not offer variable speeds.

How it's done:

  • The intermittent wiper relay is verified it needs replacement
  • The defective intermittent wiper relay is removed
  • The new intermittent wiper relay is installed
  • The intermittent wiper relay is energized to turn it on
  • The wipers are tested to work properly in all control positions

Our recommendation:

Intermittent wiper operation isn’t required to drive your vehicle, and as long as your windshield wipers work, you’re legally permitted to drive while raining. However, lack of such an option can be a major inconvenience. If your wipers no longer work on the intermittent setting, a failed relay is likely the cause. Have it inspected by one of our expert mechanics and replaced if necessary.

What common symptoms indicate you may need to replace the Intermittent Wiper Relay?

  • Intermittent speed setting does not always work
  • Intermittent setting does not work at all

How important is this service?

Working wipers are required for safety on the road, but intermittent functionality is a convenience feature. However, it can be frustrating to constantly turn the wipers on and off to meet different rates of precipitation. Have the intermittent wiper relay replaced when it’s practical to do so.

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

(391)

Rating Summary
369
12
4
2
4
369
12
4
2
4

Bryce

16 years of experience
26 reviews
Bryce
16 years of experience
Mercury Grand Marquis V8-4.6L - Oil Change - Fort Worth, Texas
excellent

Richard

11 years of experience
450 reviews
Richard
11 years of experience
Mercury Grand Marquis V8-4.6L - Intake Manifold Gaskets - Washington, District of Columbia
Knowledgeable, explained the repairs in detail, honest analysis.

Brikk

18 years of experience
389 reviews
Brikk
18 years of experience
Mercury Grand Marquis V8-5.0L - Fuel Filter - Charlotte, North Carolina
Brikk is the ultimate professional. He is very thorough and detail-oriented in his work. And, what I like best, is that he will take the time to explain the mechanics and reasoning of what he is doing so that even a neophyte such as myself can understand the process. The teaching profession missed out here, but it is always a blessing when you can find an honest and competent mechanic.

William

34 years of experience
532 reviews
William
34 years of experience
Mercury Grand Marquis V8-4.6L - AC Compressor - Glendale, Arizona
As always, excellent service!

Excellent Rating

(391)

Rating Summary
369
12
4
2
4
369
12
4
2
4
Number of Mercury Grand Marquis services completed
4301+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

How Are Car Wires Protected From Damage?
The highest tech cars can contain miles of electrical wiring. Wires must be secured and protected from heat and debris in order to work properly.
How to Replace a Coolant Level Sensor
Coolant level sensors are faulty if the coolant level sensor light stays on extensively or the engine overheats without the light coming on.
How to Replace a Refrigerant Pressure Sensor
The air conditioning system has a refrigerant pressure sensor that goes bad when the air conditioning does not work or only works intermittently.

Faulty speed sensor causing car to stall.

If you are referring to P0320 - Ignition/Distributor Engine Speed Input Circuit code, then the most common cause of the problem is the crankshaft position sensor. This sensor controls ignition timing of the engine and when it fails the computer...

Check engine light

Hello. If the harnesses do not match then the sensor you have is incorrect. A search on my end also reveals that your vehicle uses a four wire sensor, however if the harness on the vehicle uses a 2 wire...

2002 Nissan Sentra GXE is smoking out the tail pipe. I replace a knock sensor and the code for the knock sensor still pops up.

HI there. There are different symptoms that create smoke that emits from the tail pipe. Here is a description of the different smoke for you to check: Smoke Types Blue: Blue smoke is an indication that the engine is burning...

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