Spark Plug Replacement at your home or office in El Cajon.

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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 El Cajon

Excellent Rating


YourMechanic Spark Plug Replacement Service in El Cajon

Average Rating

5/5

Number of Reviews

6

Rating Summary
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Chet

39 years of experience
441 reviews
Chet
39 years of experience
Great guy!!!! Made great points i need to work on my car.
Chet Chet Chet you are the best!!!! I am so pleased with the repairs and maintanance that you did on my Mercedes! I am a very happy girl. Not only is the car running great but with your extra appreciated effort you also made the cabin so much more comfortable! Since we purchased this car we could never get the moon shade closed so basically we were baking like ants under a magnifying glass. Lol Now thanks to you that is no longer the case and I can not thank you enough!!! Keep up the Great work and the outstanding customer care!!

David

26 years of experience
142 reviews
David
26 years of experience
David is a very knowledgeable man. He always comes early and is ready to work! Any questions that I've had he stops and answers providing excellent customer service. You can't go wrong with this guy!!

Scott

19 years of experience
144 reviews
Scott
19 years of experience
great job as always. would use from now on. better then shops by far.

Chris

13 years of experience
312 reviews
Chris
13 years of experience
Professional and thorough. Will use him again.

Estevan

10 years of experience
28 reviews
Estevan
10 years of experience
Estevan was very knowledgeable and polite. We are very pleased with the service he did on our car.

Peter

34 years of experience
346 reviews
Peter
34 years of experience
Peter was wonderful. He showed up early and got right to work. He changed out my spark plugs and changed the oil. Definatly will use again.

Joseph

25 years of experience
499 reviews
Joseph
25 years of experience
Awesome service and a nice guy

Daniel

13 years of experience
37 reviews
Daniel
13 years of experience
Provided update on timing. Competent.

Martin

21 years of experience
68 reviews
Martin
21 years of experience
Martin is very trustworthy!! He explains everything and makes sure you understand. He doesn't do guess work. He worked on my husband's car, and I am thankful he worked on mine.

Joshua

25 years of experience
709 reviews
Joshua
25 years of experience
AWESOME JOB


How much does Spark Plug Replacement cost in El Cajon?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 Isuzu Ascender $405 $204.67 $199.97 14% $473.42
2006 Chevrolet Express 3500 $333 $189.08 $143.98 12% $382.58
2005 Honda S2000 $173 $93.00 $79.99 13% $200.50
2009 Infiniti G37 $513 $369.39 $143.98 8% $562.89
2011 Mercedes-Benz B200 $308 $163.83 $143.98 13% $357.33
2014 Jaguar F-Type $276 $131.76 $143.98 15% $325.26

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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