Mercury LN7 Windshield Wiper Motor Replacement at your home or office.

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Windshield Wiper Motor Replacement Estimate for Mercury LN7

Mercury LN7 Windshield Wiper Motor Replacement costs $214 on average.

CarServiceEstimateShop/Dealer Price
1983 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Front ReplacementEstimate$361.03Shop/Dealer Price$438.69 - $643.77
1982 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Rear ReplacementEstimate$308.39Shop/Dealer Price$377.91 - $558.52
1983 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Rear ReplacementEstimate$308.39Shop/Dealer Price$377.91 - $558.52
1982 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Front ReplacementEstimate$341.03Shop/Dealer Price$418.69 - $623.76
Show example Mercury LN7 Windshield Wiper Motor Replacement prices

Windshield Wiper Motor Replacement Service

What is the windshield wiper motor and how does it work?

The windshield wiper motor is a small electric motor. A shaft coming out of the motor connects to a linkage/transmission assembly that converts the rotary shaft movement of the motor to the linear, back-and-forth motion of the wiper arms across the windshield. In addition to the windshield wiper motor in the front, some SUVs, vans, hatchbacks and station wagons have an additional wiper motor mounted in the tailgate to keep the rear window clear.

When to consider replacing the windshield wiper motor?

  • No wiper function at all. Windshield wiper motors can fail, but prior to replacing the motor, the mechanic will check its power supply.
  • Wipers don’t park in the down position. There is an internal switch in the wiper motor that keeps the motor powered after you have shut it off to ensure the wipers park in the right spot. If that switch fails, the wiper motor must be repaired or replaced.
  • Erratic or slow wiper operation. If the electric motor or the transmission have worn excessively, you might experience erratic, intermittent, or slow wiper operation.
  • Grinding or clunking noises. Excessive wear in the motor transmission or wiper linkages may cause noise. A mechanic will determine the cause of the noise before performing repairs.

How do mechanics replace the windshield wiper motor?

  • Remove the cowl and any covers over the wiper motor and transmission assembly.
  • Remove the plug harness to the motor and disconnect the wiper transmission arm from the wiper motor.
  • Remove the bolts holding the motor and transmission assembly to the body of the car.
  • Install the new motor. The plug harness is usually keyed so it can only be inserted in one direction. If not, the proper polarity must be observed. Bolt the motor to the car body.
  • Cycle the motor several times by turning it on and off to establish the park position, then re-attach the linkage transmission assembly to the wiper motor.
  • Install all covers, cowling, and so forth and test operation of the motor on a wetted glass only.

Is it safe to drive with a windshield wiper motor problem?

Yes. So long as the weather is clear and there is no rain, snow, or ice, it is safe. However, if the wiper motor is not functioning properly driving in adverse weather conditions is quite risky and may even be impossible in heavy rain, which will often completely obscure your view through the windshield. Due to the unpredictability of the weather, it is always best to have the windshield wiper system in good working order.

When replacing the windshield wiper motor keep in mind:

  • Never turn on the wipers if the windshield wiper blades are frozen to the windshield or their path is blocked by snow or ice.
  • When the wiper motor is replaced, all the linkages in the wiper system should be lubricated.
  • The rubber inserts in the wiper arm have a lifetime of about 1 to 2 years. Replacing the inserts regularly will make it safer to drive in adverse weather.

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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(8)

Rating Summary
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Jeremy

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

Frank

30 years of experience
60 reviews
Frank
30 years of experience
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Tampa, Florida
Frank is very knowledgeable. He figured out the problem and repaired it correctly. I would use him again and will recommend him to my friends.

John

20 years of experience
538 reviews
John
20 years of experience
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Orlando, Florida
Following an inspection of my car, John returned to complete the necessary recommendations. Again, he arrived on time and was extremely efficient in completing the work in a timely manner (and during inclement weather). A soft spoken gentleman, John was highly professional from start to finish. 'Your Mechanic' has revolutionized how we, as a family, are going to use auto services in the future. An extremely impressive and convenient process throughout. Thank you.

Phil

30 years of experience
48 reviews
Phil
30 years of experience
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Hanover, Maryland
Phil came fully prepared to operate on my vehicle. I was thoroughly impressed with his patience and ability to explain the issue that was preventing my wiper motor from working. If it wasn't for his ability to check every avenue possible, might not have been able to solve the issue. I will highly recommend him to anyone looking for a mechanic that will make sure the job gets done.

Excellent Rating

(8)

Rating Summary
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Number of Mercury Windshield Wiper Motor Replacement services completed
88+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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