Spark Plug Replacement at your home or office in Union City.

Our mobile technicians offer services 7 days a week. Upfront and transparent pricing.

Get an upfront price

Service Area

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

$86.47 - $615.97

Price range for all vehicles


YourMechanic Benefits

Online Booking

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.

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



Recent Spark Plug Replacement reviews in Union City

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,416

Rating Summary
3,214
121
16
15
50
3,214
121
16
15
50
Theodore

Theodore

13 years of experience
814 reviews
Theodore
13 years of experience
He was very helpful and win the problem wasn’t solved he figured out what was the problem and got additional parts to fix it. Very fast and punctual. Would definitely recommend him to anyone I know.
Very cordial, friendly and easy to talk to. Did a great job of explaining and was very thorough. I would highly recommend him.
Manuel

Manuel

29 years of experience
176 reviews
Manuel
29 years of experience
Manuel is awesome. My sons 4 runner has been sitting for a year while he was studying in England. The truck had a real bad mis and the engine was bouncing all over the engine compartment. Once Manuel got in there he worked his magic and the truck runs like new again. He did a very thorough inspection and was tightening Bolts on components he didn’t work on. You can tell he takes pride in his job. I will ask for him in the future and recommend him to everyone.
Richard

Richard

10 years of experience
419 reviews
Richard
10 years of experience
Great experience
Chris

Chris

13 years of experience
121 reviews
Chris
13 years of experience
Luis

Luis

9 years of experience
41 reviews
Luis
9 years of experience
Very good at what he does. His profile describes him perfectly.
Richard

Richard

18 years of experience
451 reviews
Richard
18 years of experience
Very knowledgeable mechanic. I highly recommend him.
Victor

Victor

29 years of experience
15 reviews
Victor
29 years of experience
Victor is the best! I will definitely use and recommend Yur Mechanic again due to Victor's great service.
Phillip

Phillip

28 years of experience
22 reviews
Phillip
28 years of experience
Was prompt and did a good job!
Trung

Trung

9 years of experience
397 reviews
Trung
9 years of experience
Excellent service!
Jose

Jose

11 years of experience
21 reviews
Jose
11 years of experience
On time, polite and straight to work. Completed the job quickly, no mess on or around my car. I totally recommend this awesome service to anyone! Kudos to who started this and Thank You! I will use this service for the rest of my car needs...sorry Hyundai Dealership.


How much does Spark Plug Replacement cost in Union City?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2012 Lotus Evora $230 $86.22 $143.98 17% $279.72
2004 Chevrolet Avalanche 2500 $213 $93.44 $119.98 16% $254.69
2013 GMC Sierra 1500 $272 $127.79 $143.98 15% $321.29
2012 Infiniti EX35 $409 $264.92 $143.98 10% $458.42
2013 Infiniti M35h $323 $179.40 $143.98 13% $372.90
2011 Jaguar XF $536 $263.55 $271.96 14% $629.05

Fast and easy service at your home or office

GET A QUOTE FOR YOUR CAR

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

GET A QUOTE FOR YOUR CAR

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