Mercury Zephyr Ignition Coil Replacement at your home or office.

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Ignition Coil Replacement Estimate for Mercury Zephyr

Mercury Zephyr Ignition Coil Replacement costs $172 on average.

CarServiceEstimateShop/Dealer Price
1980 Mercury ZephyrL6-3.3LService typeIgnition Coil ReplacementEstimate$177.71Shop/Dealer Price$209.54 - $277.13
1981 Mercury ZephyrL6-3.3LService typeIgnition Coil ReplacementEstimate$253.75Shop/Dealer Price$309.61 - $449.24
1982 Mercury ZephyrV8-4.2LService typeIgnition Coil ReplacementEstimate$253.75Shop/Dealer Price$309.61 - $449.24
1979 Mercury ZephyrL6-3.3LService typeIgnition Coil ReplacementEstimate$253.75Shop/Dealer Price$309.59 - $449.20
1981 Mercury ZephyrL4-2.3LService typeIgnition Coil ReplacementEstimate$253.75Shop/Dealer Price$309.62 - $449.27
1983 Mercury ZephyrL6-3.3LService typeIgnition Coil ReplacementEstimate$253.75Shop/Dealer Price$309.61 - $449.24
1982 Mercury ZephyrL4-2.3LService typeIgnition Coil ReplacementEstimate$258.75Shop/Dealer Price$314.47 - $454.00
1978 Mercury ZephyrL4-2.3LService typeIgnition Coil ReplacementEstimate$258.75Shop/Dealer Price$314.84 - $454.66
Show example Mercury Zephyr Ignition Coil Replacement prices

Ignition Coil Replacement Service

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.

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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(22)

Rating Summary
21
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1
21
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Brandon

18 years of experience
275 reviews
Brandon
18 years of experience
Mercury Zephyr L6-3.3L - Car shuts off when stepping on gas pedal - Dacula, Georgia
Good guy, knowledgeable and personable

Michael

16 years of experience
606 reviews
Michael
16 years of experience
Mercury Grand Marquis V8-4.6L - Ignition Coil - Atlanta, Georgia
Helped a lot. Fixed 8 of 10 problems with my car

Robert

20 years of experience
1022 reviews
Robert
20 years of experience
Mercury Grand Marquis V8-4.6L - Ignition Coil - Broomfield, Colorado
Robert is helpful as always. He's now my go-to guy when I need any maintenance done on my car.

Adam

17 years of experience
124 reviews
Adam
17 years of experience
Mercury Grand Marquis V8-4.6L - Ignition Coil - Houston, Texas

Excellent Rating

(22)

Rating Summary
21
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1
21
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Number of Mercury Ignition Coil Replacement services completed
242+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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