GMC Acadia Spark Plug Replacement at your home or office.

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$104.23 - $374.65

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Spark Plug Replacement Estimate for GMC Acadia

GMC Acadia Spark Plug Replacement costs $284 on average.

CarServiceEstimateShop/Dealer Price
2008 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$485.32Shop/Dealer Price$598.07 - $888.13
2015 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$459.44Shop/Dealer Price$561.56 - $795.35
2018 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$397.18Shop/Dealer Price$479.01 - $655.81
2017 GMC AcadiaL4-2.5LService typeSpark Plug ReplacementEstimate$158.23Shop/Dealer Price$191.72 - $260.85
2010 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$499.76Shop/Dealer Price$615.99 - $883.05
2009 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$497.08Shop/Dealer Price$605.68 - $865.50
2011 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$459.44Shop/Dealer Price$553.99 - $782.10
2016 GMC AcadiaV6-3.6LService typeSpark Plug ReplacementEstimate$459.44Shop/Dealer Price$560.03 - $792.68
Show example GMC Acadia Spark Plug Replacement prices

Service

What are spark plugs and how do they work?

A spark plug is a precision-manufactured electrical device that passes a very high voltage pulse across two electrodes. The ignition system in your car generates very high voltage, as much as 50,000 volts. As that high voltage flows to each plug, the path to ground is interrupted by the spark plug gap, which varies depending on the engine. The voltage is high enough to jump that gap gauge and ignites the air-fuel mixture created. Like all engine components that operate in synchrony, the spark at each spark plug is timed to maximize power and efficiency and also to keep engine emissions as low as possible.

Spark plugs-MATROX-1

When to replace spark plugs:

  • Vehicle maintenance schedule. Spark plugs are a routine maintenance item, and should always be replaced according to the factory maintenance schedule.

If a spark is found to be faulty, it should be replaced, since it can cause any number of unfavorable symptoms, such as:

  • Difficulty starting your car.
  • Flashing check engine light.
  • Reduced fuel economy and/or power.
  • Rough idle and/or unexplained engine vibration.
  • Failed State emission testing.

Even if only one spark plug is found to be faulty, it is common to replace them all at that time.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. Not all the steps below apply to all cars, but the replacement procedure is as follows:

  • Determine correct plug based on OEM catalog, VIN, or underhood sticker.
  • Remove plastic engine cover, if applicable. Remove all components on top of the plug including coil-on-plug assemblies, spark plug wires, and so forth.
  • Unthread plug while the engine is cold.
  • Inspect removed plug to look for clues indicating any engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
  • Verify part numbers of new spark plugs. Adjust the gap to specification (if adjustable type), and install new plugs using a calibrated inch-pound torque wrench. Adjust torque if anti-seize is required on plug threads.
  • Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with a spark plugs problem?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Generally, plug misoperation will not cause the engine to fail to run, but in cases of extreme wear, you may experience a limitation in the speed at which you can operate. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly. Regardless of the age of the plugs, or elapsed mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects.

When replacing spark plugs keep in mind:

  • High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
  • The correct spark plug is critical for proper operation of your engine. Do not allow substitute part numbers. Always use brand name parts.
  • Never remove spark plugs from a hot engine.
  • Anti-seize compounds require that the OEM torque rating be adjusted downward. OEM torque assumes clean, dry spark plug threads with no lubricants.
  • Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly. If you delay replacement, the spark plug threads may weld themselves to the aluminum cylinder head, thus making later replacement very difficult and costly if the aluminum threads are damaged.
  • If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be tested for electrical resistance at 100,000 miles or just replaced outright with new, name brand wires.

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Meet some of our expert GMC mechanics

Real customer reviews from GMC owners like you.

Excellent Rating


YourMechanic GMC Acadia Spark Plugs Replacement Service

Average Rating

5/5

Number of Reviews

5

Rating Summary
5
0
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5
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Ivan

9 years of experience
18 reviews
Ivan
9 years of experience
Ivan did a very professional job. He explained everything and he did take special care of the complicated reassembly of the parts. I'm very satisfied with his job and I will book him on the next job.
2008 GMC ACADIA - SPARK PLUG REPLACEMENT - LAS VEGAS, NEVADA

Peter

40 years of experience
1059 reviews
Peter
40 years of experience
Another great job
2012 GMC ACADIA - SPARK PLUGS - PEORIA, ARIZONA

Joseph

30 years of experience
432 reviews
Joseph
30 years of experience
Honest
2013 GMC ACADIA - SPARK PLUGS - ALLEN, TEXAS

Howard

27 years of experience
79 reviews
Howard
27 years of experience
Howard was great. Car is running like a champ.
2012 GMC ACADIA - SPARK PLUGS - TUCKER, GEORGIA

Excellent Rating


YourMechanic GMC Acadia Spark Plugs Replacement Service

Average Rating

5/5

Number of Reviews

5

Rating Summary
5
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0
0
5
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Red-stars EXCELLENT RATING ON
Number of GMC Acadia Spark Plugs Replacement services completed
55+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
600+
experts on our platform

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