Subaru WRX Ignition Coil Replacement at your home or office.

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received a Ignition Coil Replacement.
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$346.09 - $383.66

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received a Ignition Coil Replacement.
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Ignition Coil Replacement Estimate for Subaru WRX

Subaru WRX Ignition Coil Replacement costs $365 on average.

CarServiceEstimateShop/Dealer Price
2014 Subaru WRXH4-2.5L TurboService typeIgnition Coil ReplacementEstimate$564.70Shop/Dealer Price$689.79 - $1019.98
2013 Subaru WRXH4-2.5L TurboService typeIgnition Coil ReplacementEstimate$605.84Shop/Dealer Price$741.31 - $1102.43
Show example Subaru WRX 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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Excellent Rating


YourMechanic Subaru WRX Service

Average Rating

5/5

Number of Reviews

12

Rating Summary
12
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Terry

24 years of experience
326 reviews
Terry
24 years of experience
Subaru WRX - Car is not starting - Scottsdale, Arizona
He was awesome! Very knowledgeable on what needed to be done and had a lot of useful tips to avoid battery disfunction/corrosion. Thank you Terry!

Jasmine

21 years of experience
93 reviews
Jasmine
21 years of experience
Subaru WRX - Pre-purchase Car Inspection - Milwaukee, Wisconsin
Jasmine was great. On time and thorough. Complete examination of the car which came with an excellent overall report. Thank you Jasmine, your experience and report gave us the confidence to buy this vehicle even though we live in another state.

Kenneth

18 years of experience
493 reviews
Kenneth
18 years of experience
Subaru WRX - Car is not starting - Los Angeles, California
Kenneth is upstanding and outstanding!

Nicholas

9 years of experience
244 reviews
Nicholas
9 years of experience
Subaru WRX - Trunk Latch Adjustment - Durham, North Carolina
Nick was great. Polite, on time and efficient.

Excellent Rating


YourMechanic Subaru WRX Service

Average Rating

5/5

Number of Reviews

12

Rating Summary
12
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12
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Red-stars EXCELLENT RATING ON
Number of Subaru WRX services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Subaru MECHANICS
500+
experts on our platform

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