GMC Sierra 3500 Classic Ignition Coil Replacement Costs

Car	Service	Estimate	Shop/Dealer Price
2007 GMC Sierra 3500 ClassicV8-6.6L Turbo Diesel	Service typeIgnition Coil Replacement	Estimate$4079.06	Shop/Dealer Price$5042.59 - $7920.20
2007 GMC Sierra 3500 ClassicV8-8.1L	Service typeIgnition Coil Replacement	Estimate$1403.58	Shop/Dealer Price$1699.02 - $2578.72
2007 GMC Sierra 3500 ClassicV8-6.0L	Service typeIgnition Coil Replacement	Estimate$1157.58	Shop/Dealer Price$1391.56 - $2086.79

Car

Service

Estimate

Shop/Dealer Price

2007 GMC Sierra 3500 ClassicV8-6.6L Turbo Diesel

Service typeIgnition Coil Replacement

Estimate$4079.06

Shop/Dealer Price$5042.59 - $7920.20

2007 GMC Sierra 3500 ClassicV8-8.1L

Service typeIgnition Coil Replacement

Estimate$1403.58

Shop/Dealer Price$1699.02 - $2578.72

2007 GMC Sierra 3500 ClassicV8-6.0L

Service typeIgnition Coil Replacement

Estimate$1157.58

Shop/Dealer Price$1391.56 - $2086.79

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.

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 GMC mechanics

Real customer reviews from GMC owners like you.

Excellent Rating

(23)

Rating Summary

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Gabriel

14 years of experience

39 reviews

Request Gabriel

by Brennan

GMC Sierra 3500 Classic V8-6.6L Turbo Diesel - Center Support Bearing - Colorado Springs, Colorado

Great service! Made sure the job was done and done right!

Richard

12 years of experience

265 reviews

Request Richard

by Michael

GMC Envoy L6-4.2L - Ignition Coil - Hermitage, Tennessee

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.

Brian

19 years of experience

138 reviews

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by Sterling

GMC Savana 3500 V8-6.0L - Ignition Coil - Stockbridge, Georgia

Highly recommend him

Carlos

26 years of experience

122 reviews

Request Carlos

by Richard

GMC Savana 3500 V8-4.8L - Ignition Coil - San Pablo, California

Carlos called ahead of our appointment and arrived on time. He did an excellent job of replacing all 8 coils on the engine, some of which were difficult to get to. He was amiable, explained what he was doing, and offered good maintenance suggestions. Carlos is a very good mechanic.

GMC Sierra 3500 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 3500 Classic Ignition Coil Replacement is $686 with $462 for parts and $224 for labor. Prices may vary depending on your location.

What is an ignition coil and how does it work?

When to consider replacing an ignition coil:

How do mechanics replace the ignition coil?

Is it safe to drive with an ignition coil problem?

When replacing an ignition coil keep in mind:

Meet some of our expert GMC mechanics

Excellent Rating

Rating Summary

Gabriel

Richard

Brian

Carlos

Excellent Rating

Rating Summary

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