Mercury LN7 Ignition Coil 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

(23)

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

(23)

Ignition Coil Replacement Service

How much does a Ignition Coil Replacement cost?

On average, the cost for a Mercury LN7 Ignition Coil Replacement is $134 with $39 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1982 Mercury LN7L4-1.6LService typeIgnition Coil ReplacementEstimate$192.71Shop/Dealer Price$222.14 - $287.93
1983 Mercury LN7L4-1.6LService typeIgnition Coil ReplacementEstimate$184.81Shop/Dealer Price$217.28 - $292.16
Show example Mercury LN7 Ignition Coil Replacement prices

What is an ignition coil and how does it work?

An ignition coil transforms ignition voltage (12 volts) to the very high voltage pulses (20,000 volts or more) that fire the spark plugs. The number of ignition coils varies depending on car model and year of production. Older cars will have one coil covering all engine cylinders while newer cars may have a coil-on-plug type arrangement — that is every cylinder will have its own dedicated ignition coil.

Ignition Coils

When to consider replacing an ignition coil:

  • Hard starting or no start. Ignition coils are subject to heat damage and electrical overload, both of which can cause partial or total failure. If the coil is faulty, you may have difficulty starting your car or it may not start at all.
  • Misfiring, loss of power, poor acceleration. Once the car is running, a bad ignition coil can cause poor operation of the engine. Should you have misfiring or loss of power, faulty ignition coils would be among the list of causes a mechanic would investigate. The Check Engine Light will often come on with a trouble code(s) indicating which cylinders are involved.

How do mechanics replace the ignition coil?

  • The ignition is checked to assure it is in the “off” position.
  • For single coils that supply all cylinders, the coil is disconnected from either a bracket located in the engine compartment or, in some cases, is removed from within the distributor. The replacement coil is secured and all electrical connections reattached. If the distributor was removed for any reason, the timing is adjusted as required.
  • For individual coil-on-plug applications, the coil is detached from the top of the individual spark plug and replaced.
  • Once the coil is securely in place, all electrical connections are reattached, and timing adjusted as needed, the car is road tested to ensure normal operation.

Is it safe to drive with an ignition coil problem?

Yes. A malfunctioning ignition coil will cause loss of power and lower fuel efficiency but that will not present an immediate safety issue. If the coil malfunction is causing misfiring, this will allow unburned fuel to enter and permanently damage the catalytic converter from overheating.

When replacing an ignition coil keep in mind:

  • Ignition coil failure can be caused by faulty spark plugs or wires. The mechanic will inspect and may recommend replacement of those components.
  • In a coil-on-plug ignition system, if only one coil fails, you need only replace the faulty coil. Remaining functioning coils can be left in place.
  • In systems with the coil located in the distributor, it may be more cost-effective to replace the entire distributor rather than remove and replace just the coil.

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

(23)

Rating Summary
22
0
0
0
1
22
0
0
0
1

Robert

20 years of experience
1089 reviews
Robert
20 years of experience
Mercury Capri L4-1.6L - Ignition Coil Replacement - Denver, Colorado
Excellent service. The speed, quality, convenience, and price has prompted me to user YourMechanic more often than a traditional shop.

Lavell

28 years of experience
230 reviews
Lavell
28 years of experience
Mercury Grand Marquis V8-4.6L - Ignition Coil Replacement - Oakland, California
He showed up on time and was very kind. Answered all my questions. I hope to use him again.

Angel

28 years of experience
118 reviews
Angel
28 years of experience
Mercury Sable V6-3.0L - Ignition Coil - Phoenix, Arizona
Good fast work

James

21 years of experience
51 reviews
James
21 years of experience
Mercury Grand Marquis V8-4.6L - Ignition Coil - Mesquite, Texas
James was excellent and very thorough about the work and letting me know about my car's engine. He seemed to do a lot for the cost of the labor part. James, is a very good mechanic, you can tell that he has been a mechanic for many years because he is very knowledgeable about the engine and the work, so I give him 5 stars.

Excellent Rating

(23)

Rating Summary
22
0
0
0
1
22
0
0
0
1
Number of Mercury Ignition Coil Replacement services completed
253+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

How Long Does a Flexible Clutch Hose Last?
Within Within your vehicle's hydraulic clutch system is a flexible clutch hose. The purpose of this hose is to send fluid to your clutch, and it also works with your clutch salve cylinder. It is called a flexible hose because...
Disabled Driver Laws and Permits in Illinois
It It is important to understand what the laws and guidelines are for disabled drivers in your state and others. Each state has its own requirements for disabled drivers. Whether you are visiting a state or just traveling through, you...
Industry News for Automotive Techs: November 5 - November 11
Tesla buys Grohmann Engineering, Ferrari's future hybrids, next-gen Dodge Charger and Challenger, Nissan e-Power system, and YourMechanic recognition.

Car won't start up.

It sounds like your car cranks but isn's starting, if that's the case it's missing one of the three requirements for combustion; compression, fuel, ignition. If, while cranking, the car sounds like it always has and not much faster than...

Rear bank of cylinders has no spark.

Hello. A no spark condition can be caused by a wide variety of issues. If the issues appear to be affecting an entire bank, that is an entire side of the engine, then it may be possible that there is...

Location of blinker flasher

When you look at the fuse block under the left side of the dash you will see a big flasher. This is the flasher for the turn signals. The hazard flasher is on the back side of the fuse box...

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