Spark Plug Replacement at your home or office in Crystal Lake.

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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 Crystal Lake

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,580

Rating Summary
3,368
127
16
15
54
3,368
127
16
15
54

Jonathan

33 years of experience
362 reviews
Jonathan
33 years of experience
As always yourmechanic is cost effective and convenient. I always tell coworkers and friends about yourmechanic.
Hot morning over 90 degrees. Nice person who really knows his stuff. Had the job completed real quick. His truck is complete with every tool possible. Excellent service to say the least! Thanks, Jon

Theodore

14 years of experience
1078 reviews
Theodore
14 years of experience
He's a honest and very knowledgeable mechanic I highly recommend him to everyone!
Theodore was great. He explained everything and gave me some good advice on other things

Eliseo

10 years of experience
238 reviews
Eliseo
10 years of experience
A nice respectful young man that is knowledgeable and that listens to you when you're talking about your problem and that will help you Fix-It in a timely and professional matter cleaning up the space he worked around thank you very much

Kerry

29 years of experience
27 reviews
Kerry
29 years of experience
Great mechanic I will request for him again

Nicholas

19 years of experience
348 reviews
Nicholas
19 years of experience
Nicholas was very knowledgeable and professional. He showed up with all the parts and tools needed to repair my car. He explained things to me and went above and beyond to ensure my vehicle was taken care of. He made a few suggestions on things that I may want to take care of in the near future and explained why. I will definitely schedule another appointment with Nick and I would definitely recommend him to a friend or colleague. My only regret would be not using Your Mechanic sooner. Thanks Nick!

Luis

13 years of experience
20 reviews
Luis
13 years of experience
Luis was awesome. Very knowledgeable and a down to earth person. Would highly recommend and plan on using him in the future for any repair that I need!

Bryant

10 years of experience
285 reviews
Bryant
10 years of experience
Great mechanic very knowledgeable and work ethics beyond reproach will definitely hire him again

Pardeep

19 years of experience
579 reviews
Pardeep
19 years of experience
Pleasant mechanic and works fast.

Dan

37 years of experience
724 reviews
Dan
37 years of experience
Dan showed up and got straight to work and was very professional.

Michael

25 years of experience
225 reviews
Michael
25 years of experience
The only positive experience I've had with 'your mechanic'. Michael is good -- hopefully he finds a different company to work for.


How much does Spark Plug Replacement cost in Crystal Lake?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2013 Nissan Pathfinder $521 $264.92 $255.96 14% $608.92
2012 Chevrolet Express 3500 $261 $116.70 $143.98 15% $310.20
2004 GMC Sierra 2500 HD $234 $113.60 $119.98 15% $274.85
2009 Audi A5 Quattro $364 $211.93 $151.98 12% $416.18
2011 Mercedes-Benz S450 $296 $152.29 $143.98 14% $345.79
2006 Mercedes-Benz SLK55 AMG $680 $455.86 $223.97 10% $756.86

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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