Spark Plug Replacement at your home or office in La Jolla.

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Service Area

Average rating from customers who
received a Spark Plugs Replacement.
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$96.47 - $648.09

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 La Jolla

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,498

Rating Summary
3,290
125
16
15
52
3,290
125
16
15
52

Robert

25 years of experience
333 reviews
Robert
25 years of experience
Robert was timely, helfpul and followed up nicely on his work and recommendations for further needs. Would use the company again and wouel request Robert to be MY MECHANIC!!!

Jerimiah

17 years of experience
317 reviews
Jerimiah
17 years of experience
Personable and experienced.
Jerimiah is a very good employee. This is the 2nd time he has worked on our vehicle and he is very professional, on time, and he treats and respects our vehicle like it was his. I would strongly recommend Jeremiah and will be requesting his services again when needed.

Chris

20 years of experience
1568 reviews
Chris
20 years of experience
Chris always does an excellent job. He would not allow himself to do any less. I look forward to working with him in the future.
Chris is skilled, friendly, helpful and efficient. I've recommended him to others with complete confidence.

Dominic

26 years of experience
121 reviews
Dominic
26 years of experience
Dominic did a great job! Very pleased

Peter

41 years of experience
1221 reviews
Peter
41 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!!!

Manuel

13 years of experience
60 reviews
Manuel
13 years of experience
Good job was done with explanation and attention for car care in future.

Daniel

18 years of experience
52 reviews
Daniel
18 years of experience
Always upbeat, knowledgeable, polite, friendly; Danny goes out of his way every time.

Joel

19 years of experience
731 reviews
Joel
19 years of experience
He knows what he is doing

Brian

13 years of experience
60 reviews
Brian
13 years of experience
He Arrived on time ,greeting himself and then strait to the diagnostics. though he was not quoted for purchasing any spark plugs or wiring, he came prepared for both. While changing the spark plugs he was to able to answer any question i had and efficiently. Once the plugs were changed he then tested my truck to see if the same problem occured. everythng was fixed and ready to go. he even found something that i hadnt even caught which was my fuel injector. i am very satisfied with the work done and especially the cost. He definitely went above expectations and i would recommend him again.

Robert

46 years of experience
51 reviews
Robert
46 years of experience
This guy is straight-up awesome. Showed up on time -- actually even a bit early. Knew everything. Gave me great advice. Made some calls on my behalf and answered every question I had. Can't recommend him enough. In short, Robert Mendoza is the emperor supreme of housecall mechanics.


How much does Spark Plug Replacement cost in La Jolla?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 Buick Lucerne $234 $113.60 $119.98 15% $274.85
2006 Pontiac G6 $138 $57.52 $79.99 16% $165.02
2009 Honda Fit $170 $89.72 $79.99 13% $197.22
2008 Lexus GS460 $434 $345.60 $87.98 6% $463.85
2012 Mercedes-Benz R350 $379 $234.71 $143.98 11% $428.21
2005 Ford Mustang $410 $242.23 $167.97 12% $467.98

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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