Spark Plug Replacement at your home or office in Mountain House.

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Average rating from customers who
received a Spark Plugs Replacement.
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$96.63 - $636.71

Price range for all vehicles


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Average rating from customers who
received a Spark Plugs Replacement.
Learn More



Recent Spark Plug Replacement reviews in Mountain House

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

4,066

Rating Summary
3,836
134
18
16
62
3,836
134
18
16
62

Juan

12 years of experience
41 reviews
Juan
12 years of experience
Arrival on time and works very fast.
Was very thorough in explaining the condition of the car and how the repairs will impact it’s service.

David

35 years of experience
195 reviews
David
35 years of experience
David was very knowledgable, helpful and quick.
I have already recommended

Ben

28 years of experience
59 reviews
Ben
28 years of experience
With this being my first experience with Your Mechanic I was quit impressed with Ben. He was on time, prepared for the job, professional, and quite friendly. He performed the service in a clean and timely manner. I would highly recommend Ben and Your Mechanic to anyone in need of mechanic service, done well and at a very reasonable price. I can't say thank you enough.I

Patrick

14 years of experience
406 reviews
Patrick
14 years of experience
Arrived on time, fixed problem, gave me advice

Brandon

19 years of experience
773 reviews
Brandon
19 years of experience
Brandon did excellent work and was extremely professional. I hope to have Brandon do any repairs I may need in the future.

Jay

36 years of experience
777 reviews
Jay
36 years of experience
Jay did the job quickly and explained in detail what needed to be done. Very experienced and knowledgeable. Highly recommended.

Mathew

23 years of experience
93 reviews
Mathew
23 years of experience
This dude is awesome, nice, and a very educational mechanic. Walked me through what he was doing as he was doing it. Bought the best parts and even went above the service of what he was initially hired for.

Howard

29 years of experience
92 reviews
Howard
29 years of experience
He was on time and got straight to work. He also was very honest and kind. He has a great personality.

Kenny

27 years of experience
91 reviews
Kenny
27 years of experience
Excellent service - I would recommend this company to anyone - convenient, knowledgeable, explains things to you, you know what is happening and not beyond the yellow line or chain in repair shops. The person who came was very courteous, friendly and trustworthy. This was my first time using this company and I am impressed.

Tomas

12 years of experience
226 reviews
Tomas
12 years of experience
Very professional and knowledgeable


How much does Spark Plug Replacement cost in Mountain House?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2008 Dodge Ram 1500 $300 $116.24 $183.97 17% $363.49
2007 Mitsubishi Outlander $474 $218.26 $255.96 15% $562.26
2005 Mercury Montego $358 $126.37 $231.97 18% $438.12
2008 Mercedes-Benz SLK280 $369 $241.14 $127.98 10% $413.14
2005 Audi A8 Quattro $730 $505.55 $223.97 9% $806.55
2011 Chevrolet Corvette $320 $151.79 $167.97 15% $377.54

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


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

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 (855) 347-2779 · hi@yourmechanic.com