Spark Plug Replacement at your home or office in Thousand Oaks.

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12-month / 12k-mile warranty

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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.

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How much does Spark Plug Replacement cost in Thousand Oaks?

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

Spark Plug Replacement pricing for various cars

CarsEstimateParts CostLabor CostSavingsAverage Dealer Price
2012 Subaru Impreza$307$97.84$208.978%$334.34
2006 Pontiac Torrent$145$31.50$113.989%$160.50
2014 Hyundai Elantra GT$216$120.96$94.995%$228.46
2013 Mercedes-Benz Sprinter 3500$611$440.40$170.983%$633.90
2016 Audi A4 Quattro$134$38.52$94.998%$146.02
2011 Porsche Panamera$287$192.06$94.994%$299.56

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.

Recent Spark Plug Replacement reviews in Thousand Oaks

Excellent Rating

(5,078)

Rating Summary
4,806
149
23
19
81
4,806
149
23
19
81

Torrieanto

12 years of experience
632 reviews
Torrieanto
12 years of experience
Torrieanto did a great job! I was very impressed at his knowledge and how quickly he was able to complete the appointment. No issues and I saved alot of money compared doing this at the dealer.

Chet

41 years of experience
493 reviews
Chet
41 years of experience

Cyrus

35 years of experience
110 reviews
Cyrus
35 years of experience
Cyrus was on time and did a good job on a tune up for my suburban...very knowledgeable mechanic.

David

16 years of experience
635 reviews
David
16 years of experience
Awesome mechanic!!!!!!

Ian

10 years of experience
79 reviews
Ian
10 years of experience
Prompt professional service.

Ricardo

23 years of experience
199 reviews
Ricardo
23 years of experience
Oustanding service and knowledge. Ricardo expedited the repair with efficiency and accuracy.

Timothy

22 years of experience
107 reviews
Timothy
22 years of experience
Very professional and knowledgeable

Travis

13 years of experience
582 reviews
Travis
13 years of experience
Good and honest

Nicholas

21 years of experience
354 reviews
Nicholas
21 years of experience
Nick is great. He is patient in his explanations and quick in his work. He is very knowledgeable and diligent with his work.

Brandon

20 years of experience
773 reviews
Brandon
20 years of experience
This was my first experience with Your Mechanic, and I have to say that it was great all the way around. Brandon was punctual, professional, and friendly. And he got the work done faster than the original estimate. If you need work done on your car, skip the shop and save some money. Have Brandon come fix your car.

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