GMC Envoy Ignition Coil Replacement at your home or office.

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received a Ignition Coil Replacement.
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$134.57 - $206.83

Price range for all vehicles


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Average rating from customers who
received a Ignition Coil Replacement.
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Ignition Coil Replacement Estimate for GMC Envoy

GMC Envoy Ignition Coil Replacement costs $166 on average.

CarServiceEstimateShop/Dealer Price
2004 GMC EnvoyL6-4.2LService typeIgnition Coil ReplacementEstimate$272.17Shop/Dealer Price$334.31 - $487.61
2005 GMC EnvoyV8-5.3LService typeIgnition Coil ReplacementEstimate$255.79Shop/Dealer Price$312.30 - $439.52
2009 GMC EnvoyV8-5.3LService typeIgnition Coil ReplacementEstimate$262.79Shop/Dealer Price$318.30 - $444.75
2008 GMC EnvoyL6-4.2LService typeIgnition Coil ReplacementEstimate$203.15Shop/Dealer Price$247.27 - $345.13
2003 GMC EnvoyL6-4.2LService typeIgnition Coil ReplacementEstimate$272.17Shop/Dealer Price$336.22 - $490.96
2007 GMC EnvoyL6-4.2LService typeIgnition Coil ReplacementEstimate$197.65Shop/Dealer Price$239.88 - $336.33
2006 GMC EnvoyV8-5.3LService typeIgnition Coil ReplacementEstimate$255.79Shop/Dealer Price$307.89 - $431.79
2007 GMC EnvoyV8-5.3LService typeIgnition Coil ReplacementEstimate$255.79Shop/Dealer Price$311.41 - $437.96
Show example GMC Envoy Ignition Coil Replacement prices

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 GMC Envoy Ignition Coil Replacement Service

Average Rating

5/5

Number of Reviews

4

Rating Summary
4
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4
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Jerimiah

16 years of experience
207 reviews
Jerimiah
16 years of experience
Very happy with the work project results!
2002 GMC ENVOY - IGNITION COIL - LAS VEGAS, NEVADA

Jerome

21 years of experience
246 reviews
Jerome
21 years of experience
Very convenient and very thorough.
2003 GMC ENVOY - IGNITION COIL - OWINGS MILLS, MARYLAND

Richard

8 years of experience
246 reviews
Richard
8 years of experience
Shows up on time and fixes the problem. I have used Richard several times already and he always does a great job. He is very friendly and professional and takes the time to talk and explain what needs to be fixed. If you don't need something he will let you know so you are not spending money for things you don't need.
2002 GMC ENVOY - IGNITION COIL - HERMITAGE, TENNESSEE

Chris

19 years of experience
1240 reviews
Chris
19 years of experience
The day before, Chris diagnosed the "check engine light" correctly, came with the right part the next day and had the Envoy running smoothly.
2002 GMC ENVOY - IGNITION COIL - IRVINE, CALIFORNIA

Excellent Rating


YourMechanic GMC Envoy Ignition Coil Replacement Service

Average Rating

5/5

Number of Reviews

4

Rating Summary
4
0
0
0
0
4
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0
Red-stars EXCELLENT RATING ON
Number of GMC Envoy Ignition Coil Replacement services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
600+
experts on our platform

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