Spark Plug Replacement at your home or office in Petersburg.

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Service Area

Average rating from customers who
received a Spark Plugs Replacement.
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$86.47 - $615.97

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 Petersburg

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,416

Rating Summary
3,214
121
16
15
50
3,214
121
16
15
50
Tyrone

Tyrone

8 years of experience
402 reviews
Tyrone
8 years of experience
Does a great job
Great experience
Theodore

Theodore

13 years of experience
841 reviews
Theodore
13 years of experience
Theodore was professional, smart, and taught me a few things about my car that I did not know. He was also very efficient. I will recommend him to family and friends!
Theodore showed up on time and performed the work needed to get my car back on the road. Much appreciated
Jacob

Jacob

9 years of experience
158 reviews
Jacob
9 years of experience
A great experience! Jacob has worked on my truck twice now and he's the best mechanic I've known in over 45 years of driving ---- knowledgeable, personable and fast. I trust him to do anything needed to keep my truck running optimally.
Daniel

Daniel

19 years of experience
178 reviews
Daniel
19 years of experience
Professional
John

John

17 years of experience
310 reviews
John
17 years of experience
Great job yet again. 3rd time I have used him. Yourmechanic.com messed up my work order and John sorted it for me. Highly recommended. Won't use anyone else
Jose

Jose

14 years of experience
153 reviews
Jose
14 years of experience
Competent, knowledgable, friendly, punctual. Knew what he was doing with my 02 BMW M5. Highly recommend.
Rob

Rob

16 years of experience
14 reviews
Rob
16 years of experience
Rob was great! He came on time, was prompt in communicating with me in advance of our appointment. He allowed me to watch while he was at work, and took the time to explain to me what he was doing, and what he was looking for. Great experience, extremely competent, extremely courteous and overall excellent service. Would definitely recommend Rob to everyone out there.
Robert

Robert

18 years of experience
596 reviews
Robert
18 years of experience
another job well done, Thanks again. Spreading the word out there!
David

David

10 years of experience
128 reviews
David
10 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.
Lonnie

Lonnie

7 years of experience
3 reviews
Lonnie
7 years of experience
Lonnie was very organized, knowledgeable, & thorough. He explained everything he was doing. I would highly recommend him to anyone...


How much does Spark Plug Replacement cost in Petersburg?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 GMC Sierra 2500 HD $213 $93.44 $119.98 16% $254.69
2009 Nissan Sentra $428 $155.66 $271.96 17% $521.16
2008 Chrysler 300 $505 $321.21 $183.97 11% $568.46
2013 Mercedes-Benz S350 $431 $286.98 $143.98 10% $480.48
2014 Land Rover Range Rover Sport $361 $216.80 $143.98 12% $410.30
2004 Audi S4 $406 $261.53 $143.98 10% $455.03

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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