Spark Plug Replacement at your home or office in Foxboro.

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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 Foxboro

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,540

Rating Summary
3,332
125
16
15
52
3,332
125
16
15
52

Robert

25 years of experience
43 reviews
Robert
25 years of experience
Great mechanic

Danny

9 years of experience
269 reviews
Danny
9 years of experience
Danny is awesome. I had my spark plugs replaced. Danny took his time with all the work.. Checked everything else for me and made suggestions for some services. I will use Danny again for all future service.

Bryce

14 years of experience
26 reviews
Bryce
14 years of experience
This is the first time I've ever used a service like this. I'm very pleased that we found your website, and that we chose to use your services. There was nothing about the entire process that I found inconvenient or unpleasant and I am really looking forward to turning to you guys in the future :) thank you so much!

Craig

14 years of experience
67 reviews
Craig
14 years of experience
I usually do my own work but did not have the time to do this job. Got an appointment scheduled the next day and Craig was prompt, polite, and knowledgeable. Would recommend him to anybody.

Scott

34 years of experience
585 reviews
Scott
34 years of experience
Car running great. He left work area clean.

Rodney

34 years of experience
384 reviews
Rodney
34 years of experience
Another great repair from Rodney!

Patrick

31 years of experience
1032 reviews
Patrick
31 years of experience
AWESOME. KNOWLEDGEABLE.

Vaughan

9 years of experience
92 reviews
Vaughan
9 years of experience
Vaughan is very knowledgeable about my car. My wife was the one at home during the appointment, he called me to give me updates as he was working on the car. I would recommend Vaughan to my friends and family.

Raul

3 years of experience
1 reviews
Raul
3 years of experience
Extremely professional

Terry

11 years of experience
45 reviews
Terry
11 years of experience
Awesome see you soon


How much does Spark Plug Replacement cost in Foxboro?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2015 Toyota Highlander $373 $125.04 $247.96 18% $458.29
2012 Scion xB $139 $59.44 $79.99 16% $166.94
2006 Ford Freestar $164 $52.26 $111.98 18% $202.76
2011 BMW 550i xDrive $308 $164.48 $143.98 13% $357.98
2010 Lexus IS350 $573 $365.20 $207.97 11% $644.70
2005 Porsche 911 $296 $128.09 $167.97 16% $353.84

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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