Spark Plug Replacement at your home or office in San Fernando.

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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 San Fernando

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,613

Rating Summary
3,401
127
16
15
54
3,401
127
16
15
54

Peter

41 years of experience
1251 reviews
Peter
41 years of experience
Fantastic
Pretty cool guy. See previous comment.

Augie

29 years of experience
263 reviews
Augie
29 years of experience
Auggie was professional, courteous, and very competent.

Joseph

22 years of experience
44 reviews
Joseph
22 years of experience
Very friendly, let me watch as he performed the maintenance. Job was done in under 45 minutes which was fantastic. He even stuck around to let me test out the car, to make sure my misfire issue was alleviated.

Michael

25 years of experience
95 reviews
Michael
25 years of experience

Leslie

12 years of experience
74 reviews
Leslie
12 years of experience
Leslie was great. He explained things to me about my car. He performed the task in a timely manner.

Jay

14 years of experience
40 reviews
Jay
14 years of experience
i was surprised, the level of service jay offered was unprecedented. i was expecting a simply plug swap, Jay treated my car like it was his own, he went above and beyond to make sure everything was perfect. i have several more projects in mind for the future and Jay will be my ace in the hole to make sure everything gets repaired properly. 5 stars are not enough for the experience Jay offered

Jamahl

18 years of experience
830 reviews
Jamahl
18 years of experience
Very knowledgeable. Felt like my car was in good hands.

Nicholas

9 years of experience
303 reviews
Nicholas
9 years of experience
Nicholas arrived early (and we had an early AM appointment), which was a very pleasant surprise. He was very polite, professional, and easy to work with. We were very appreciative of his recommendations and have already booked Nicholas to come back to replace the fluids he recommended be changed.

Chris

9 years of experience
281 reviews
Chris
9 years of experience
Chris was on time and very efficient. Completed the work professionally and I would highly recommend Chris.

Mike

14 years of experience
17 reviews
Mike
14 years of experience
Mike called to let me know he Was in his way and showed up on time. He was professional and took the time to explain everything he was doing to me and the reasons why. He went above and beyond.


How much does Spark Plug Replacement cost in San Fernando?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2010 Chevrolet Malibu $152 $71.92 $79.99 15% $179.42
2004 Kia Sedona $415 $199.22 $215.97 15% $489.47
2004 Volvo XC90 $272 $104.52 $167.97 17% $330.27
2014 Infiniti Q70 $545 $369.39 $175.97 9% $605.89
2013 Land Rover Range Rover Sport $421 $277.32 $143.98 10% $470.82
2012 Porsche 911 $355 $186.57 $167.97 14% $412.32

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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