Spark Plug Replacement at your home or office in Knightdale.

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customer ratings

(4,350)

$96.63 - $627.86

Price range for all vehicles


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

customer ratings

(4,350)


Recent Spark Plug Replacement reviews in Knightdale

Excellent Rating

(4,350)

Rating Summary
4,106
139
21
16
68
4,106
139
21
16
68

Joel

21 years of experience
960 reviews
Joel
21 years of experience
Joel knows what he is doing! We only want him to work on our vehicle! I am very pleased we found him! He most definitely is an asset to your company! He is such a great man! Thank you with Blessings
It was a wonderful experience having Joel fix my car!!

David

13 years of experience
327 reviews
David
13 years of experience
David was great! He showed up on time and the car has never ran better.
Showed up on time and was friendly. Did an excellent job.

Duane

25 years of experience
427 reviews
Duane
25 years of experience
Excellent service. Very professional yet personable. Explained that it might not be the issue I was told it was and insisted on doing a diagnostic first and discovered that it was just fouled spark plugs and bad fuel, saved me a couple hundred dollars in unnecessary repairs.

Breck

20 years of experience
681 reviews
Breck
20 years of experience
He was on time and changed the spark plugs in less than an hour. He gave me great advice on how to care for my car.

Kyle

13 years of experience
145 reviews
Kyle
13 years of experience
Very knowledgeable mechanic. Gets the job done in a timely matter..

RAYMOND

38 years of experience
7 reviews
RAYMOND
38 years of experience
Awesome, honest, straight to the point, very friendly mechanic. I will definitely book him again and again.

Amor

43 years of experience
181 reviews
Amor
43 years of experience

Robert

42 years of experience
232 reviews
Robert
42 years of experience
Good job done in a timely manner. Called when he was 1/2 hours away and arrived on time.

Khoa

20 years of experience
402 reviews
Khoa
20 years of experience
At first I skeptical about this app and service but after Khoa replaces my front brakes I knew it was safe to utilize this service. He did a great job with my brakes so I wanted to use him for and oil change and spark plug replacement. Khoa did a great job and I’d highly recommend him for servicing your vehicle.

Fernando

27 years of experience
50 reviews
Fernando
27 years of experience
Fernando is a professional mechanic. Very knowledgeable and highly qualified.


How much does Spark Plug Replacement cost in Knightdale?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2015 Jeep Cherokee $278 $94.32 $183.97 18% $341.57
2007 Pontiac Torrent $127 $31.50 $95.98 20% $160.50
2008 Pontiac Vibe $101 $21.00 $79.99 21% $128.50
2008 Lexus GX470 $246 $141.76 $103.98 12% $281.51
2015 Land Rover Range Rover Sport $252 $108.00 $143.98 16% $301.50
2013 Jaguar XFR-S $511 $222.80 $287.96 16% $609.80

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