Subaru Impreza 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 $165 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$79 to $336
Labor: $70 -$240
Parts: $9 -$96
Average Dealer price
$114 to 480
Average Shop price
$97 to 377
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
CarServiceEstimateShop/Dealer Price
1995 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementEstimate$87.68Shop/Dealer Price$106.28 - $130.18
2010 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$168.88Shop/Dealer Price$203.09 - $274.25
2011 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$192.88Shop/Dealer Price$232.60 - $307.89
1995 Subaru ImprezaH4-1.8LService typeSpark Plug ReplacementEstimate$95.84Shop/Dealer Price$118.22 - $149.54
2000 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementEstimate$155.84Shop/Dealer Price$190.32 - $264.46
2004 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$178.88Shop/Dealer Price$214.62 - $286.92
2001 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementEstimate$155.84Shop/Dealer Price$190.90 - $265.49
2009 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$157.88Shop/Dealer Price$191.95 - $263.00
Show example Subaru Impreza Spark Plug Replacement prices

Service

What are 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

While replacing spark plugs remember

  • 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.

Steps for replacing spark plugs

  • 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.

When to replace spark plugs

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 it to replace the spark plugs?

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.

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YourMechanic Subaru Impreza Spark Plugs Replacement Service

Average Rating

5/5

Number of Reviews

9

Rating Summary
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Meet some of our expert Subaru mechanics

Real customer reviews from Subaru owners like you.

Jose

7 years of experience
262 reviews
Jose
7 years of experience
I had a very good experience with Jose, we changed around a couple dates because of weather, etc. no big deal for me I work 50+ hours a week so being able to have a mechanic come to me is such a relief, fixed a vacuum line I didn’t even know was broken, thanks Jose, all around positive experience.
2005 SUBARU IMPREZA - SPARK PLUGS - PALM HARBOR, FLORIDA

Javier

8 years of experience
30 reviews
Javier
8 years of experience
Great experience with Javier. He was very knowledgable about my car and auto repair in general, even offering tuning and repair advice while doing the work. Made my first time using YourMechanic a breeze!
2012 SUBARU IMPREZA - SPARK PLUGS - LAS VEGAS, NEVADA

Jason

17 years of experience
68 reviews
Jason
17 years of experience
Jason did a great job with the work he performed and was very friendly and helpful. He showed up on time and completed the job 15 min early. He was very knowledgeable which eased my anxiety of having someone I found online work on my baby. I would highly recommend Jason to anyone looking for a mechanic.
2012 SUBARU IMPREZA - SPARK PLUG REPLACEMENT - VISALIA, CALIFORNIA

Theodore

13 years of experience
726 reviews
Theodore
13 years of experience
It was a great experience. Am totally planning on having him do the rest of the work.
2003 SUBARU IMPREZA - SPARK PLUGS - SEATTLE, WASHINGTON
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
CarServiceEstimateShop/Dealer Price
1995 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementEstimate$87.68Shop/Dealer Price$106.28 - $130.18
2010 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$168.88Shop/Dealer Price$203.09 - $274.25
2011 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$192.88Shop/Dealer Price$232.60 - $307.89
1995 Subaru ImprezaH4-1.8LService typeSpark Plug ReplacementEstimate$95.84Shop/Dealer Price$118.22 - $149.54
2000 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementEstimate$155.84Shop/Dealer Price$190.32 - $264.46
2004 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$178.88Shop/Dealer Price$214.62 - $286.92
2001 Subaru ImprezaH4-2.2LService typeSpark Plug ReplacementEstimate$155.84Shop/Dealer Price$190.90 - $265.49
2009 Subaru ImprezaH4-2.5LService typeSpark Plug ReplacementEstimate$157.88Shop/Dealer Price$191.95 - $263.00
Show example Subaru Impreza Spark Plug Replacement prices

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