Spark Plug Replacement at your home or office in National City.

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Average rating from customers who
received a Spark Plugs Replacement.
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$96.47 - $616.68

Price range for all vehicles


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

Excellent Rating


YourMechanic Spark Plug Replacement Service in National City

Average Rating

5/5

Number of Reviews

4

Rating Summary
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Andrew

10 years of experience
561 reviews
Andrew
10 years of experience
Another amazing job!
Andrew arrived in a timely manner and he was familiar with my vehicle. He replaced the spark plugs and did an inspection of my vehicle in less than 45 minutes. The price was reasonable.

Pete

15 years of experience
192 reviews
Pete
15 years of experience
He's cool he knows his stuff, the you can ask him questions anytime.

Chris

14 years of experience
312 reviews
Chris
14 years of experience
Very knowledgeable on the car.

Chet

40 years of experience
444 reviews
Chet
40 years of experience
Really funny dude , he know his Asian cars. You can't go wrong with him or Pete the mechanic

Nikolay

19 years of experience
33 reviews
Nikolay
19 years of experience
Excellent! Personable, professional, answered my questions and got the job done. Highly recommend Nikolay and Your Mechanic. Great service, car and wallet are happy. Thanks Nikolay!

Erick

9 years of experience
182 reviews
Erick
9 years of experience
Eric was prompt professional knew what he was doing handled business low maintenance highly effective already looking at my next service with the company and I will be requesting Eric to do it

Jamahl

19 years of experience
830 reviews
Jamahl
19 years of experience
Jamahl was experienced and very professional. Excellent

Jacob

11 years of experience
282 reviews
Jacob
11 years of experience
Jacob was very knowledgeable and did great work.

David

12 years of experience
272 reviews
David
12 years of experience
Very punctual. Was prepared to get started. Finished and gave a detailed description of what he did and of any problems found. Great mechanic.

Richard

20 years of experience
461 reviews
Richard
20 years of experience
Richard arrived a few minutes early, was extremely courteous and completed the job in half the time quoted. I am very satisfied and hope to work with Richard on my next YourMechanic service!


How much does Spark Plug Replacement cost in National City?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2012 Subaru Legacy $348 $156.44 $191.97 15% $414.44
2005 Volvo S40 $232 $112.15 $119.98 15% $273.40
2010 Volkswagen Touareg $215 $134.58 $79.99 11% $242.08
2016 Cadillac Escalade $334 $189.66 $143.98 12% $383.16
2008 Lexus LS460 $627 $395.09 $231.97 11% $706.84
2011 Porsche Cayman $307 $162.59 $143.98 13% $356.09

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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