Spark Plug Replacement at your home or office in Palo Alto.

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Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(14)

How much does Spark Plug Replacement cost in Palo Alto?

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

Spark Plug Replacement pricing for various cars

CarsEstimateParts CostLabor CostSavingsAverage Dealer Price
2015 Toyota Prius V$205$100.80$104.486%$219.05
2009 Pontiac Solstice$137$42.48$94.998%$149.98
2013 Kia Sorento$595$329.09$265.975%$630.09
2016 Lexus LS600h$594$233.44$360.967%$641.94
2011 BMW X6$583$336.08$246.975%$615.58
2015 Audi S6$332$236.80$94.993%$344.30

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 Palo Alto

Excellent Rating

(14)

Rating Summary
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Jason

32 years of experience
507 reviews
Jason
32 years of experience
Infiniti QX56 V8-5.6L - Spark Plugs - Palo Alto, California
Jason provided excellent service and advice. Was very professional and even work diligently and patiently when a original . part would not come out correctly. Managed to get out and replace with my provided parts. Brovo Your Mechanic for the service and the option to suppy my own parts. Very reasonable service cost too. I'll be using Jason in the future and referring family and friends.
Toyota Camry - Spark Plugs - Palo Alto, California
Jason is very professional and competent. He listens to my description of the issues, and he cross-examines my car accordingly. He is also punctual and knowledgeable. Last but not the least, he has a great sense of humor, in that he laughs at each and every one of my jokes.

John

36 years of experience
434 reviews
John
36 years of experience
Acura TL V6-3.2L - Spark Plugs - Palo Alto, California
Second time John has serviced my vehicle. Excellent as always! John was very communicative and provided explanations when I was curious.

H

26 years of experience
828 reviews
H
26 years of experience
BMW X6 L6-3.0L Turbo - Spark Plugs - Palo Alto, California
showed up on time, worked professionally and thoroughly, explained to me what he is gonna do and how long it will probably take. Seems to know a lot of details of this specific type of engine, finished on time, car runs great again, happy with his work, would book again!

Shaun

16 years of experience
238 reviews
Shaun
16 years of experience
Dodge Charger V6-2.7L - Spark Plugs - Palo Alto, California
Shaun was very good..very knowledgeable, answer all my question and he seems like he knows what he's doing...

Mark

11 years of experience
349 reviews
Mark
11 years of experience
Toyota Camry L4-2.2L - Spark Plugs - Palo Alto, California
I made an appointment with Mark to fix spark plugs/cables issues caused by an earlier service. He showed me the old parts and explained what's involved. Then he replaced them with new parts, did a test drive, and asked me to do a test drive as well. The problem was solved completely and I'm very satisfied with his service and professionalism.

Whitney

39 years of experience
783 reviews
Whitney
39 years of experience
Chrysler 300 V6-2.7L - Spark Plugs - Palo Alto, California
Whitney was very prompt and professional. He quickly diagnose the problem, provided expert recommendations and now my car is running better than ever. Working with him was the best experience ever.

Adam

17 years of experience
48 reviews
Adam
17 years of experience
Dodge Neon L4-2.0L - Spark Plugs - Palo Alto, California
Thanks Adam for fixing my car, and saving me money in the process!!

Jose

9 years of experience
63 reviews
Jose
9 years of experience
Chevrolet Impala Limited V6-3.6L - Spark Plugs - Palo Alto, California
My man was prompt and was done in a timely manner.

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