Pontiac G8 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Pontiac G8

Pontiac G8 Spark Plug Replacement costs $128 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$106 to $160
Labor: $98 -$152
Parts: $8
Average Dealer price
$146 to 193
Average Shop price
$127 to 169
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2009 Pontiac G8V6-3.6LService typeSpark Plug ReplacementYourMechanic Price$114.08Shop/Dealer Price$138.43 - $165.73
2008 Pontiac G8V8-6.0LService typeSpark Plug ReplacementYourMechanic Price$149.46Shop/Dealer Price$181.29 - $214.43
2008 Pontiac G8V6-3.6LService typeSpark Plug ReplacementYourMechanic Price$114.08Shop/Dealer Price$138.46 - $165.79
2009 Pontiac G8V8-6.2LService typeSpark Plug ReplacementYourMechanic Price$149.46Shop/Dealer Price$181.25 - $214.35
2009 Pontiac G8V8-6.0LService typeSpark Plug ReplacementYourMechanic Price$149.46Shop/Dealer Price$181.18 - $214.24
Show example Pontiac G8 Spark Plug Replacement prices

Spark Plug Replacement Service & Cost

What are the Spark Plugs all about?

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder.

Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

Spark plugs-MATROX-1

Keep in mind:

  • When the spark plugs are replaced, it is a good idea to inspect the ignition cables as well.
  • Spark plugs come in numerous ratings, and the correct rating for your vehicle should always be used.

How it's done:

  • Scan the car for codes.
  • Clean all surface areas around the spark plugs.
  • Remove spark plugs.
  • Inspect threads in engine head (where plugs are installed).
  • Perform compression test if needed.
  • Inspect ignition wires.
  • Apply anti-seize to the threads of the spark plugs.
  • Install new spark plugs.
  • If needed replace any gaskets removed.

Our recommendation:

During routine maintenance and checkups, your ignition system should always be inspected. Any time that a component of the ignition system is replaced, it’s a good idea to consider replacing the spark plugs as well. If you don’t preemptively change your spark plugs your engine will let you know by misfiring or running poorly, so schedule an inspection as soon as you notice that your engine is not performing properly.

What common symptoms indicate you may need to replace the Spark Plugs?

  • Check Engine light is on.
  • Engine misfires.
  • Poor fuel economy.
  • Vibration coming from the engine.

How important is this service?

Spark plugs are responsible for igniting the fuel that your engine uses to run. When you turn your key, a small voltage of power is sent to the ignition coil, where it is transformed into high voltage currency. This high voltage currency is sent through the ignition cables to the spark plugs. The spark plugs use the power to create a spark, which ignites the fuel, and allows the engine to function.

When the spark plugs malfunction, this spark won’t be created, and the fuel will not be ignited as it should. Your vehicle has many spark plugs, so depending on how many fail, your engine may either run poorly, or not run at all. Continuing to drive a vehicle with malfunctioning spark plugs can also cause damage to the catalytic converter.

Fast and easy Spark Plug Replacement service at your home or office.

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Meet some of our expert Pontiac mechanics

Real customer reviews from Pontiac owners like you.

658 reviews
Ben
37 years of experience
He is very good. I asked for oil change only but he tried to figure out a solution to some other problems of my car even after a long day before Thanksgiving. I would recommend him to my friends without any reservation.
2001 PONTIAC GRAND AM - OIL CHANGE
583 reviews
Tien
19 years of experience
Excellent work, early, through explanation of what was wrong with car, very professional
2004 PONTIAC GRAND AM - RADIATOR HOSE REPLACEMENT (UPPER)
390 reviews
Richard
17 years of experience
Richard was very professional and informative. He answered all my questions and has restored my confidence in mechanics. The repair journey is not complete but I will make sure I schedule with Richard the next time.
2001 PONTIAC AZTEK - SPARK PLUG REPLACEMENT
39 reviews
Shane
32 years of experience
Shane was on time and got to work immediately. Fixed the main issue and answered a few of my questions about improving how my car runs. If there is anymore issues, Shane is who I would want working on my car.
1997 PONTIAC SUNFIRE - CAR IS NOT STARTING INSPECTION
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2009 Pontiac G8V6-3.6LService typeSpark Plug ReplacementYourMechanic Price$114.08Shop/Dealer Price$138.43 - $165.73
2008 Pontiac G8V8-6.0LService typeSpark Plug ReplacementYourMechanic Price$149.46Shop/Dealer Price$181.29 - $214.43
2008 Pontiac G8V6-3.6LService typeSpark Plug ReplacementYourMechanic Price$114.08Shop/Dealer Price$138.46 - $165.79
2009 Pontiac G8V8-6.2LService typeSpark Plug ReplacementYourMechanic Price$149.46Shop/Dealer Price$181.25 - $214.35
2009 Pontiac G8V8-6.0LService typeSpark Plug ReplacementYourMechanic Price$149.46Shop/Dealer Price$181.18 - $214.24
Show example Pontiac G8 Spark Plug Replacement prices

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