Spark Plug Replacement at your home or office in Madison.

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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 Madison

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,721

Rating Summary
3,505
129
16
15
56
3,505
129
16
15
56

Peter

42 years of experience
1273 reviews
Peter
42 years of experience
Peter is punctual, professional and courteous. Oh and by the way he's the most mechanically knowledgeable person I've spoken with in decades! (And I speak with a lot of people) Thanks Man!!!
Car is still not running but now we know what my be all are problems with are mazda RX8. Mr. Pryke was very good at his job and very informative. Learned things about my car that I did not know. Am looking forward to Mr. Pryke's next visit.

Joe

14 years of experience
366 reviews
Joe
14 years of experience
nice, fast, friendly guy. Pick him every time. He'll be there

Martin

28 years of experience
166 reviews
Martin
28 years of experience
Martin is the man to fix anything

Travis

17 years of experience
93 reviews
Travis
17 years of experience
Experienced, competent.

Ben

17 years of experience
114 reviews
Ben
17 years of experience
Ben did a great job. He was on time and the work was first class.

Frank

29 years of experience
60 reviews
Frank
29 years of experience
Came on time and fixed my van promptly. A+

Robert

41 years of experience
232 reviews
Robert
41 years of experience
Robert was late only due to the fact that he had been dispatched to the wrong address. Otherwise I was completely satisfied with every aspect of Roberts work and professionalism.

Nathan

16 years of experience
198 reviews
Nathan
16 years of experience
Excellent work. Very professional, helpful, and knowledgeable on German vehicles.

Kenneth

19 years of experience
512 reviews
Kenneth
19 years of experience
Kenneth was indeed an experienced and expert mechanic! He was on time and immediately began working on my car. He did a great job and was super fast. What I expected to be an hour or more job only took him around 35 to 40 minutes! He was knowledgeable in explaining to me everything that happened and also was able to point out a few other things I needed replacing on the car. Great attitude and positive energy. I would definitely call Kenneth again!

Jim

11 years of experience
58 reviews
Jim
11 years of experience
Very professional, arrived on time and was able to meet me at a different location than originally planned. Highly recommend his service!


How much does Spark Plug Replacement cost in Madison?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2007 Toyota Yaris $139 $59.24 $79.99 16% $166.74
2014 Chevrolet Express 2500 $256 $111.86 $143.98 16% $305.36
2013 Ford F-250 Super Duty $460 $315.60 $143.98 9% $509.10
2008 Audi A8 Quattro $581 $356.79 $223.97 11% $657.79
2010 Mercedes-Benz GL350 $607 $494.88 $111.98 5% $645.38
2009 Porsche Boxster $222 $110.10 $111.98 14% $260.60

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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