Hummer H2 Ignition Coil Replacement at your home or office.

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Ignition Coil Replacement Estimate for Hummer H2

Hummer H2 Ignition Coil Replacement costs $321 on average.

CarServiceEstimateShop/Dealer Price
2006 Hummer H2V8-6.0LService typeIgnition Coil ReplacementEstimate$490.16Shop/Dealer Price$599.11 - $875.55
2005 Hummer H2V8-6.0LService typeIgnition Coil ReplacementEstimate$474.16Shop/Dealer Price$580.58 - $855.12
2004 Hummer H2V8-6.0LService typeIgnition Coil ReplacementEstimate$474.16Shop/Dealer Price$580.58 - $855.11
2007 Hummer H2V8-6.0LService typeIgnition Coil ReplacementEstimate$474.16Shop/Dealer Price$580.54 - $855.05
2008 Hummer H2V8-6.2LService typeIgnition Coil ReplacementEstimate$514.60Shop/Dealer Price$631.15 - $936.04
2003 Hummer H2V8-6.0LService typeIgnition Coil ReplacementEstimate$474.16Shop/Dealer Price$580.58 - $855.11
2009 Hummer H2V8-6.2LService typeIgnition Coil ReplacementEstimate$522.60Shop/Dealer Price$638.91 - $943.61
Show example Hummer H2 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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Joseph

27 years of experience
578 reviews
Joseph
27 years of experience
Hummer H2 V8-6.0L - Serpentine/Drive Belt - Katy, Texas
Fast service repair . Arrived on time.Friendly,courteous and knowledgeable.

ALAA

37 years of experience
56 reviews
ALAA
37 years of experience
Hummer H2 V8-6.0L - Fuel Filter - Sacramento, California
Great mechanic, helpful and understand what he's doing .

Richard

21 years of experience
237 reviews
Richard
21 years of experience
Hummer H2 V8-6.0L - Check Engine Light is on - Fort Myers, Florida
Richard was prompt, professional, competent, knowledgeable and helpful. It was a pleasure to work with him.

Tyrone

11 years of experience
423 reviews
Tyrone
11 years of experience
Hummer H2 V8-6.0L - Brake Rotor/Disc Replacement (Front, Rear) - Bowie, Maryland
Tyrone is an awesome mechanic very professional and knowledgeable. Most importantly very honest and trustworthy.

Excellent Rating

(130)

Rating Summary
123
5
0
0
2
123
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2
Number of Hummer H2 services completed
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TOTAL NUMBER OF EXPERT Hummer MECHANICS
200+
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