Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Subaru Impreza

Subaru Impreza Spark Plug Replacement costs $122 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$73 to $257
Labor: $70 -$240
Parts: $3 -$17
Average Dealer price
$99 to 313
Average Shop price
$87 to 271
Get an instant quote for your car
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
2013 Subaru ImprezaH4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$171.49Shop/Dealer Price$207.81 - $244.88
2002 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$109.06Shop/Dealer Price$132.24 - $155.85
2011 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$87.42Shop/Dealer Price$106.02 - $125.84
2009 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$87.42Shop/Dealer Price$106.05 - $125.88
2003 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$108.62Shop/Dealer Price$131.61 - $154.83
2005 Subaru ImprezaH4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$221.72Shop/Dealer Price$268.19 - $309.64
1996 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementYourMechanic Price$73.24Shop/Dealer Price$88.65 - $102.03
2002 Subaru ImprezaH4-2.0L TurboService typeSpark Plug ReplacementYourMechanic Price$164.80Shop/Dealer Price$199.88 - $236.21
Show example Subaru Impreza 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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Jason
12 years of experience
Excellent services, easy to deal with, very comfortable to communicate and trust worthy. Definitely will use Jason again!!!
2005 SUBARU IMPREZA - BRAKE PADS REPLACEMENT (FRONT, REAR)
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Russell
19 years of experience
The mechanic was very knowledgeable and did a great job. I gave four stars because he was not able to come at his appointed time but he did call. Otherwise I would have given 5 stars. I will surelyl use Your mechanic again and have already recommended to several people.
1997 SUBARU IMPREZA - SPEEDO CABLE REPAIR
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246 reviews
Godwin
19 years of experience
Great. He inspected everything in the car and made sure everything was in working order.
2013 SUBARU IMPREZA - PRE-PURCHASE CAR INSPECTION
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136 reviews
Casey
19 years of experience
I am so happy about my experience with yourmechanic.com. Casey was very knowledgeable, communicative, and professional. The cost of the work done was much lower than what I had been quoted at the repair shop. One thing I especially liked about Casey, was that he seemed real about what needed to be done ASAP and what I could work on at a later date. With other places, I feel like they word things in an alarming matter to try and get me to do it all at once, which I'm just not able to afford. I hope I have more experiences like this, as I will be booking all of my work through yourmechanic.com from now on! Thank you!
1998 SUBARU FORESTER - SPARK PLUG REPLACEMENT
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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
2013 Subaru ImprezaH4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$171.49Shop/Dealer Price$207.81 - $244.88
2002 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$109.06Shop/Dealer Price$132.24 - $155.85
2011 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$87.42Shop/Dealer Price$106.02 - $125.84
2009 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$87.42Shop/Dealer Price$106.05 - $125.88
2003 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementYourMechanic Price$108.62Shop/Dealer Price$131.61 - $154.83
2005 Subaru ImprezaH4-2.5L TurboService typeSpark Plug ReplacementYourMechanic Price$221.72Shop/Dealer Price$268.19 - $309.64
1996 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementYourMechanic Price$73.24Shop/Dealer Price$88.65 - $102.03
2002 Subaru ImprezaH4-2.0L TurboService typeSpark Plug ReplacementYourMechanic Price$164.80Shop/Dealer Price$199.88 - $236.21
Show example Subaru Impreza Spark Plug Replacement prices

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