Spark Plug Replacement at your home or office in Bothell.

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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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Average rating from customers who
received a Spark Plugs Replacement.
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Recent Spark Plug Replacement reviews in Bothell

Excellent Rating


YourMechanic Spark Plug Replacement Service in Bothell

Average Rating

5/5

Number of Reviews

8

Rating Summary
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Theodore

14 years of experience
1088 reviews
Theodore
14 years of experience
Great guy! Knows his stuff and helps you understand how your car works! Definitely recommend and will call again for future maintenance on my BMW.
Theodore was professional, thorough and knowledgeable. He did a great job on the 80k service on my VW and did it for $200 less than the dealer. I will use Theodore again and recommend him to my friends and family.

Cesar

7 years of experience
292 reviews
Cesar
7 years of experience
Very knowledgeable and fixed all identified issue in a timely manner.
Very fast and pro much appreciated.

Max

15 years of experience
35 reviews
Max
15 years of experience
Max showed up on time. He is very friendly and honest. Explained what he was doing as he was doing it. I would definitely book Max for future appointments.
Max completed the replacement of my car's (4) coil ignitions and (4) spark plugs and changed oil within the expected time frame./window.

Noe

34 years of experience
604 reviews
Noe
34 years of experience
Excellent service!! This is my first time for YourMechanic service. I am very impressed... I will recommend Noe to my friends....

Gregory

29 years of experience
238 reviews
Gregory
29 years of experience
He was a great Tech. On time, super respectful, and very thorough!

Rod

15 years of experience
210 reviews
Rod
15 years of experience
Rod loves my old truck as much as I do! He is the best!

Harold

30 years of experience
52 reviews
Harold
30 years of experience
Harold is very knowledgeable. He worked on my 2003 Ford Explorer with ease and answered all of my questions concerning the vehicle.

Jamahl

18 years of experience
830 reviews
Jamahl
18 years of experience

Hani

18 years of experience
80 reviews
Hani
18 years of experience
Texted me and asked if he could come earlier, which I was please to accept. Did the repair that I had asked for quickly and finished sooner than I expected. Pointed out a couple of items that will need repair, but did not pressure me to do them now. Will certainly use him again, and recommend him to my friends.

Richard

19 years of experience
223 reviews
Richard
19 years of experience
He really helped us out! It was very convenient and easy.


How much does Spark Plug Replacement cost in Bothell?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2015 Dodge Durango $206 $86.08 $119.98 16% $247.33
2014 Ram 3500 $282 $146.35 $135.98 14% $329.10
2009 Pontiac G6 $174 $86.28 $87.98 14% $204.53
2012 Mercedes-Benz S400 $251 $139.50 $111.98 13% $290.00
2008 BMW 760Li $551 $270.84 $279.96 14% $647.09
2005 Dodge Viper $134 $53.80 $79.99 17% $161.30

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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