GMC Sierra 1500 Classic Ignition Coil Replacement Costs

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

Car	Service	Estimate	Shop/Dealer Price
2007 GMC Sierra 1500 ClassicV8-4.8L	Service typeIgnition Coil Replacement	Estimate$1172.00	Shop/Dealer Price$1408.76 - $2106.08
2007 GMC Sierra 1500 ClassicV8-6.0L	Service typeIgnition Coil Replacement	Estimate$1157.58	Shop/Dealer Price$1391.52 - $2086.72
2007 GMC Sierra 1500 ClassicV6-4.3L	Service typeIgnition Coil Replacement	Estimate$1280.08	Shop/Dealer Price$1544.68 - $2331.79
2007 GMC Sierra 1500 ClassicV8-5.3L	Service typeIgnition Coil Replacement	Estimate$1157.58	Shop/Dealer Price$1391.56 - $2086.79
2007 GMC Sierra 1500 ClassicV8-5.3L Hybrid	Service typeIgnition Coil Replacement	Estimate$1231.34	Shop/Dealer Price$1486.11 - $2238.43

Show example GMC Sierra 1500 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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by Chris

GMC Sierra 1500 Classic V8-5.3L - Car is not starting - Cherry Hill, New Jersey

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GMC Sierra 1500 Classic V8-4.8L - Oil/Fluid Leak - Pflugerville, Texas

He was very professional also explaining everything were I understood him what needs to be done

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21 years of experience

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GMC Sierra 1500 Classic V8-4.8L - Brake System Flush - Portland, Oregon

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by RAYMOND

GMC Sierra 1500 Classic V8-4.8L - Heater Blower Motor Resistor - Ocala, Florida

David was amazing. The part was difficult to find but he made numerous phone calls and drove to at least two different part stores to locate it, then he finished the work and did a very good job. I highly recommend him. Very friendly and knows his stuff.

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