Spark Plug Replacement at your home or office in Bristol.

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Service Area

Average rating from customers who
received a Spark Plugs Replacement.
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$96.47 - $616.68

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.

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

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,712

Rating Summary
3,496
129
16
15
56
3,496
129
16
15
56

Chris

17 years of experience
120 reviews
Chris
17 years of experience
I'm very satisfied with Mr Chris Vesci services there on time very polite and did a good job thanks Mr Chris Vesci

Chris

17 years of experience
356 reviews
Chris
17 years of experience
Chris was in time and finished the job right in time.

Omar

11 years of experience
280 reviews
Omar
11 years of experience
As before, timely and great service.

Gary

26 years of experience
226 reviews
Gary
26 years of experience
The two times I have used this service, I have been Totally satisfied.

Casey

23 years of experience
152 reviews
Casey
23 years of experience
Casey is awesome. He showed up on time and described in detail what he was going to do. He was very professional and cleaned the area when he was done. Highly recommend Casey and YourMechanic.

Mark

10 years of experience
349 reviews
Mark
10 years of experience
great mechanic.

Joshua

7 years of experience
20 reviews
Joshua
7 years of experience
Josh did a great job. Would hire him again

Cesar

8 years of experience
292 reviews
Cesar
8 years of experience
Cesars was able to come to my home an 1 1/2 earlier and took the time to explain what was going on with my car not wanting start.. Suggested we change spark plugs.

James

18 years of experience
17 reviews
James
18 years of experience
James did a fantastic job for me. I plan to use him in the future.

Steven

9 years of experience
52 reviews
Steven
9 years of experience
worked out really well, It was convenient that Steven came to my home. He was early and completed the work in the time estimated. He was very helpful in responding to questions about the other issues the dealer said needed to be done on the car. I would definitely call on Steven for service on my car.


How much does Spark Plug Replacement cost in Bristol?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2013 Ram 3500 $276 $139.60 $135.98 14% $322.35
2012 GMC Sierra 1500 $168 $88.02 $79.99 14% $195.52
2014 Toyota Corolla $156 $76.44 $79.99 14% $183.94
2011 Infiniti FX50 $441 $304.91 $135.98 9% $487.66
2007 Audi A8 Quattro $581 $356.79 $223.97 11% $657.79
2009 Jaguar XJ8 $190 $69.68 $119.98 17% $230.93

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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