Spark Plug Replacement at your home or office

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

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(4,262)

$96.63 - $636.71

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.

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How much does Spark Plug Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics 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.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2009 GMC Sierra 1500 $186 $42.00 $143.98 21% $235.50
2011 GMC Sierra 1500 $181 $100.86 $79.99 13% $208.36
2005 Hyundai Tucson $383 $239.12 $143.98 11% $432.62
2016 Lexus RC200t $211 $131.40 $79.99 11% $238.90
2008 BMW 650i $495 $351.13 $143.98 9% $544.63
2005 Porsche Boxster $214 $102.18 $111.98 15% $252.68

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Recent Spark Plug Replacement reviews

Excellent Rating

(4,262)

Rating Summary
4,023
139
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4,023
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16
64

Jason

31 years of experience
299 reviews
Jason
31 years of experience
Toyota 4Runner - Spark Plugs - Plano, Texas
Highly recommend booking Jason! He is one of the most honest mechanics I have ever experienced. He has the best interest of the consumer as his priority. Please book him, if offered, you won’t regret it
Honda Pilot - Spark Plugs - Arlington, Texas
Did a great job and explained everything Would recommend him to anyone needing fast easy service for all your Autocare

Luke

7 years of experience
14 reviews
Luke
7 years of experience
Volkswagen Passat - Spark Plugs - Rock Hill, South Carolina
He came to the house, got the information that he needed, and went straight to work. The appt. said that it would take at least two hours. He came at 10 am and was finished by 11 am. My car is running smoothly and I am grateful to Luke. I also appreciate the company that he works for because there was no way I could drive my car around to find a mechanic, but this company comes to you.
Nissan Versa Note - Spark Plugs - Pineville, North Carolina
Awesome..Luke took care of everything from start to finish. Having a mobile mechanic like Luke come to you is so much better than having to find a place.

Manuel

31 years of experience
394 reviews
Manuel
31 years of experience
Chrysler PT Cruiser - Spark Plugs - Westminster, California
Prompt. Efficient. Knowledgeable. Polite. Highly recommended and would select again for service appointment.

Patrick

32 years of experience
1216 reviews
Patrick
32 years of experience
Kia Soul - Spark Plugs - Austin, Texas
Patrick is fantastic! Always on time, was even able to come look at my car early, which was fantastic! Does quick work and has great communication - really appreciated his work on my car!

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 (855) 347-2779 · hi@yourmechanic.com