Spark Plug Replacement at your home or office in Wilton.

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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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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 Wilton

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,573

Rating Summary
3,362
127
16
15
53
3,362
127
16
15
53

Ben

39 years of experience
1113 reviews
Ben
39 years of experience
Man this mechanic is awesome im going to keep doing business with you , thanks again your awesome looking foward on doing business with yaw .

William

22 years of experience
37 reviews
William
22 years of experience
William was courteous and professional

Joshua

6 years of experience
20 reviews
Joshua
6 years of experience
Josh was very professional.

Mila

9 years of experience
93 reviews
Mila
9 years of experience
great, easy, quick service

William

31 years of experience
69 reviews
William
31 years of experience
William was very efficient and professional!!! Would definitely recommend and use again!

Miguel

2 years of experience
5 reviews
Miguel
2 years of experience
Extremely professional very knowledgeable.

Alonzo

25 years of experience
41 reviews
Alonzo
25 years of experience
Polite, on time and very informative about vehicle maintenence.

Robert

40 years of experience
232 reviews
Robert
40 years of experience
Good job done in a timely manner. Called when he was 1/2 hours away and arrived on time.

David

8 years of experience
181 reviews
David
8 years of experience
Booked him twice, every time the job is done quickly and neatly.

Robert

18 years of experience
623 reviews
Robert
18 years of experience
Honest and reliable


How much does Spark Plug Replacement cost in Wilton?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2011 Honda Fit $170 $89.72 $79.99 13% $197.22
2004 Chevrolet Silverado 1500 $202 $113.60 $87.98 13% $231.85
2015 Hyundai Elantra $186 $106.32 $79.99 12% $213.82
2015 Lincoln MKT $194 $81.96 $111.98 16% $232.46
2013 Audi A4 $168 $87.68 $79.99 14% $195.18
2011 Porsche Cayenne $456 $312.11 $143.98 9% $505.61

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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.

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