Spark Plug Replacement at your home or office in Swansea.

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

$96.47 - $648.09

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 Swansea

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,474

Rating Summary
3,267
125
16
15
51
3,267
125
16
15
51

Joseph

18 years of experience
414 reviews
Joseph
18 years of experience
Joseph took care of my car problems even when there were unforseen complications. I would highly recommend his service
Overall the experience was good. They did not have the tool needed to finish on of the things I asked for. Will use again

Torrieanto

10 years of experience
446 reviews
Torrieanto
10 years of experience
Very knowledgeable and courteous. Would recommend Torrieanto to anybody anytime.
Torrieanto was very pleasant and knowledgeable. He really knew a lot about my car. He was fast and efficient. I highly recommend.

Luis

16 years of experience
159 reviews
Luis
16 years of experience
Luis did a great job changing plugs and wires that were on a car for 23 years. He was quick, thorough, and a nice guy as well. I'll definitely book him again.

Joshua

11 years of experience
41 reviews
Joshua
11 years of experience
On time service, he really explained what I needed

Allen

34 years of experience
430 reviews
Allen
34 years of experience
Allen was great from start to finish. He arrived early, he finished the work under the quoted time, and my car is running well again.

Whitney

37 years of experience
783 reviews
Whitney
37 years of experience

Richard

19 years of experience
459 reviews
Richard
19 years of experience
I would request Mr. Cobb again.

Rusty

21 years of experience
345 reviews
Rusty
21 years of experience
Rusty was awesome! He showed up early to our appointment and immediately got to work on my truck. I had 16 spark plugs replaced as well as an oil change, so it took a little while to get it all done but I thought it was surprisingly quick for the task at hand! He was very friendly and even showed me some things I need to have maintenced after doing a post-work inspection on my truck. My truck is running/accelerating so much better now than before. Definitely a good service and a great mechanic!

Charles

24 years of experience
134 reviews
Charles
24 years of experience
Charles did a great job getting my truck back on the road. Didn’t waste any time and even pointed out a couple of other things that could possibly be repaired.

Eric

10 years of experience
230 reviews
Eric
10 years of experience
Extremely friendly, prompt, and overall efficient!


How much does Spark Plug Replacement cost in Swansea?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2014 Toyota Sequoia $320 $167.58 $151.98 14% $371.83
2005 Chevrolet Express 2500 $333 $189.08 $143.98 12% $382.58
2011 Ferrari California $1566 $1421.73 $143.98 3% $1615.23
2008 Cadillac SRX $346 $194.38 $151.98 13% $398.63
2006 Acura CSX $155 $74.76 $79.99 15% $182.26
2011 Porsche Boxster $232 $120.36 $111.98 14% $270.86

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