Spark Plug Replacement at your home or office in Lathrop.

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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 Lathrop

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,712

Rating Summary
3,496
129
16
15
56
3,496
129
16
15
56

Chris

14 years of experience
312 reviews
Chris
14 years of experience
Very knowledgeable on the car.
Chris is an awesome mechanic and will request him in the future.

Andrew

10 years of experience
259 reviews
Andrew
10 years of experience
Andrew was timely and efficient.

Bryant

11 years of experience
314 reviews
Bryant
11 years of experience
Thorough, knowledgeable, corteous, professional , stayed late on a cold night troubleshooting what was going on with the car, returned the following day to troubleshoot what the issue with the car was once I informed him it was still having issues, stayed late and put in much time and effort maintaining a positive attitude the entire time. Would recommend Bryant to anyone needing work done. A class act.

Jeremiah

12 years of experience
75 reviews
Jeremiah
12 years of experience
Jeremiah was very good and fast at his work!

Bryce

15 years of experience
26 reviews
Bryce
15 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!

Patrick

10 years of experience
158 reviews
Patrick
10 years of experience
very good

Edmond

15 years of experience
14 reviews
Edmond
15 years of experience
Great guy, Would trust him to to do many more jobs for my vehicles. Very informative on the processes.

Danny

10 years of experience
269 reviews
Danny
10 years of experience
I am satisfied with the work Danny did on my car. He changed my spark plugs and he told me what the other repairs were that I needed. He cleaned my garage when he was finished working on my car, and he completed the job in good time.

Haider

20 years of experience
10 reviews
Haider
20 years of experience
Had 120,000 mile spark plugs replaced. He was 15 minutes late but notified me that we would be late. Took his time finished the job in a couple hours. Car runs great.

Joe

14 years of experience
365 reviews
Joe
14 years of experience
Joe is awesome, he works diligently and explains all he's done. He answers my questions in simple terms and ensures I've understood, thanks Joe.


How much does Spark Plug Replacement cost in Lathrop?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2008 Ferrari 612 Scaglietti $470 $325.97 $143.98 9% $519.47
2013 Toyota Tundra $164 $83.58 $79.99 14% $191.08
2006 Saturn Ion $118 $38.08 $79.99 18% $145.58
2008 Mercedes-Benz CL600 $1038 $566.40 $471.94 13% $1200.65
2015 Lincoln MKT $200 $88.02 $111.98 16% $238.52
2011 Porsche 911 $327 $158.97 $167.97 15% $384.72

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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