Spark Plug Replacement at your home or office in Fairfax.

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Service Area

Average rating from customers who
received a Spark Plugs Replacement.
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$96.47 - $648.09

Price range for all vehicles


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Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Average rating from customers who
received a Spark Plugs Replacement.
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Recent Spark Plug Replacement reviews in Fairfax

Excellent Rating


YourMechanic Spark Plug Replacement Service in Fairfax

Average Rating

5/5

Number of Reviews

4

Rating Summary
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4
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Emmette

34 years of experience
282 reviews
Emmette
34 years of experience
Great service !! Almost half cheaper than dealers.
Emmette came early for my appointment and did excellent work. He was completely professional and a joy to talk with. I plan on booking additional appointments with him because he a great auto mechanic.

William

32 years of experience
203 reviews
William
32 years of experience
Awesome work ethic and personality. Very professional, organized, knowledgeable.
William came to my home to fix the issue with my car and he did just that in less then half the time that was in the contract he was on time and felt like family i recommend william to all my family and friends thanks william from terrence j

Mila

9 years of experience
93 reviews
Mila
9 years of experience
Great customer service! On time and made sure I was happy with service before leaving. I would recommend your company and his service to anyone. Thanks for making the car service and repairs needed so easy!!

Eugenio

24 years of experience
133 reviews
Eugenio
24 years of experience
Great work. He took the time to clarify the issue with me before starting work and offered a very detailed report after completion. He even took the time to go on a test drive to ensure the issue was resolved.

Patrick

13 years of experience
395 reviews
Patrick
13 years of experience
Great mechanic. He went above and beyond what was required. He came early and finished fast!

Chris

9 years of experience
278 reviews
Chris
9 years of experience
Chriss was very polite & new what he was doing. Job well done Thank you !!!

Fred

15 years of experience
324 reviews
Fred
15 years of experience
He did what I paid for

Matthew

10 years of experience
183 reviews
Matthew
10 years of experience
On time and efficient

Jerome

32 years of experience
147 reviews
Jerome
32 years of experience
Jerome was very professional and straight-forward. I would recommend him going forward.

Martin

27 years of experience
166 reviews
Martin
27 years of experience
Martin is the man to fix anything


How much does Spark Plug Replacement cost in Fairfax?

It depends on the type of car you drive and the auto repair shop you go to in Fairfax. Our mechanics in Fairfax are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office in Fairfax.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2014 Hyundai Tucson $185 $104.92 $79.99 12% $212.42
2013 Toyota Prius V $164 $76.44 $87.98 15% $194.69
2015 Kia Optima $188 $108.40 $79.99 12% $215.90
2014 BMW X6 $422 $213.68 $207.97 14% $493.18
2008 Cadillac Escalade $353 $208.67 $143.98 12% $402.17
2006 Porsche Boxster $206 $94.26 $111.98 15% $244.76

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Spark Plug Replacement Service

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

  • Difficulty starting your car.
  • Check engine light for a misfire code.
  • Flashing check engine light during acceleration for misfire, this can cause engine damage.
  • 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, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

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. The mechanic will:

  • Have the correct spark plugs on hand for your vehicle
  • Pull any diagnostic trouble codes that may be related to worn spark plugs.
  • Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
  • Install new plugs using a torque wrench.
  • Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

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. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced 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.
  • Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
  • If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
  • It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
  • Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
  • Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

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Backed by 12-month, 12.000-mile guarantee


How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com