Spark Plug Replacement at your home or office in Fanwood.

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Service Area

Average rating from customers who
received a Spark Plugs Replacement.
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$96.47 - $642.49

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 Fanwood

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,638

Rating Summary
3,423
128
16
15
56
3,423
128
16
15
56

Dan

37 years of experience
736 reviews
Dan
37 years of experience
He was great and knowledgeable!

Isai

25 years of experience
230 reviews
Isai
25 years of experience
Isai was great and I will be using Your Mechanic for all repairs. Its so nice to not feel like a mechanic is taking advantage he was fantastic.

Irven

9 years of experience
60 reviews
Irven
9 years of experience
Prompt, professional. Did a good job.

Travis

10 years of experience
165 reviews
Travis
10 years of experience
I don't know your other mechanics, but Travis is one of the best. I have use several, he is good. May God bless him.

Wilson

11 years of experience
292 reviews
Wilson
11 years of experience
Wilson was awesome! He was very thorough and explained everything! I had no questions on what was going on or my jeep's proformance.

Tavaris

12 years of experience
93 reviews
Tavaris
12 years of experience
Very professional and knowledgeable!!

Kenneth

18 years of experience
504 reviews
Kenneth
18 years of experience
Kenneth has been extremely professional, explanatory and he seemed to have a solid knowledge of cars. Arrived in time, highly recommended.

Joshua

25 years of experience
709 reviews
Joshua
25 years of experience

Steve

38 years of experience
99 reviews
Steve
38 years of experience
Steve was great. Honest and told me the truth. His professional demeanor was a pleasant change from other mechanics I've used in the past. I would use Steve again!

Michael

23 years of experience
174 reviews
Michael
23 years of experience
Thorough. Expressed interest in follow-up to make sure everything was working well.


How much does Spark Plug Replacement cost in Fanwood?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2012 Dodge Challenger $206 $86.08 $119.98 16% $247.33
2014 Ford E-250 $310 $166.39 $143.98 13% $359.89
2004 Volkswagen Jetta $219 $139.50 $79.99 11% $247.00
2004 BMW X5 $421 $276.77 $143.98 10% $470.27
2014 BMW 550i $308 $164.48 $143.98 13% $357.98
2006 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.

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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