Spark Plug Replacement at your home or office in Hawthorne.

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Average rating from customers who
received a Spark Plugs Replacement.
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$86.47 - $610.45

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 Hawthorne

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,267

Rating Summary
3,074
118
15
12
48
3,074
118
15
12
48
Lucas

Lucas

18 years of experience
767 reviews
Lucas
18 years of experience
Perfect!
Great experience,2nd time having work done by this man any future problems ill book Lucass
Jamahl

Jamahl

17 years of experience
703 reviews
Jamahl
17 years of experience
Good Work, very professional
First experience with Your Mechanic was great. Jamahl knows his stuff, and explains everything clearly. Will definitely use him again. Thanks!
Ricardo

Ricardo

9 years of experience
246 reviews
Ricardo
9 years of experience
Ricardo did awesome job with spark plus & valve cover gasket replacement. Also gave advice & notified me about a broke and bad ingnition coil . Great customer service
Robert

Robert

18 years of experience
64 reviews
Robert
18 years of experience
Robert did a great job and was professional at the work and also did the fluid leak diagnosis and explained the diagnosis very well.
Sami

Sami

18 years of experience
69 reviews
Sami
18 years of experience
Very knowledgable and I appreciate that he took the time to show me the issues and explain everything that was happening with the car.
Ross

Ross

15 years of experience
54 reviews
Ross
15 years of experience
Again, 3rd time with Ross on 3 different vehicles...he's proficient, professional and informative.
James

James

27 years of experience
331 reviews
James
27 years of experience
I found him to be professional and knowledgeable. Made good recommendations.
Ray

Ray

29 years of experience
91 reviews
Ray
29 years of experience
Tomas

Tomas

10 years of experience
216 reviews
Tomas
10 years of experience
Tomas was prompt and efficient. He diligently worked on my vehicle and finished much sooner than the estimated time.
Cesar

Cesar

6 years of experience
215 reviews
Cesar
6 years of experience
He did a great job.


How much does Spark Plug Replacement cost in Hawthorne?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2009 Volkswagen Jetta City $175 $94.68 $79.99 13% $202.18
2009 Dodge Charger $359 $142.59 $215.97 17% $432.84
2015 Kia Forte Koup $147 $66.80 $79.99 15% $174.30
2015 BMW 650i Gran Coupe $284 $164.48 $119.98 12% $325.73
2014 Lexus LS600h $650 $345.60 $303.96 13% $754.10
2012 Audi S5 $171 $90.60 $79.99 13% $198.10

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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.

Fast and easy service at your home or office

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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