GMC Sierra 1500 HD Classic Ignition Coil Replacement at your home or office.

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Ignition Coil Replacement Service

How much does a Ignition Coil Replacement cost?

On average, the cost for a GMC Sierra 1500 HD Classic Ignition Coil Replacement is $686 with $462 for parts and $224 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 GMC Sierra 1500 HD ClassicV8-6.0LService typeIgnition Coil ReplacementEstimate$1172.00Shop/Dealer Price$1408.76 - $2106.08
Show example GMC Sierra 1500 HD Classic 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.

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Excellent Rating

(23)

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Jerimiah

20 years of experience
328 reviews
Jerimiah
20 years of experience
GMC Envoy L6-4.2L - Ignition Coil - Las Vegas, Nevada
Very happy with the work project results!

Jonathan

36 years of experience
522 reviews
Jonathan
36 years of experience
GMC Envoy XL L6-4.2L - Ignition Coil - Land O Lakes, Florida
He was very polite , showed up earlier than was told. He gives great advice and finished the Jakob in minutes. Thank uou

Robert

28 years of experience
333 reviews
Robert
28 years of experience
GMC Envoy XL L6-4.2L - Ignition Coil - Upper Marlboro, Maryland
The mechanic was very professional and friendly. He's always completed his task in a timely fashion.

David

11 years of experience
193 reviews
David
11 years of experience
GMC Yukon V8-6.0L - Ignition Coil - Philadelphia, Pennsylvania
On point

Excellent Rating

(23)

Rating Summary
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Number of GMC Ignition Coil Replacement services completed
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services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
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