Spark Plug Replacement at your home or office in Ballwin.

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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 Ballwin

Excellent Rating

(4,350)

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

Bryant

12 years of experience
492 reviews
Bryant
12 years of experience
Friendly, knowledgeable, fast & on-time!
Very nice and helpful

Joel

21 years of experience
960 reviews
Joel
21 years of experience
Good
Joel was great, however I do believe the labor amount paid should have been reduced since the the amount of actual labor was greatly reduced!

James

31 years of experience
570 reviews
James
31 years of experience
My favorite mechanic! He finished a lot sooner than I expected. Thank you so much James!

Joshua

27 years of experience
709 reviews
Joshua
27 years of experience
AWESOME JOB

Trung

12 years of experience
412 reviews
Trung
12 years of experience
He was very knowledgeable

Brian

18 years of experience
109 reviews
Brian
18 years of experience
The job was quick and painless, and he was on time. I would definitely book him again.

Brandon

18 years of experience
275 reviews
Brandon
18 years of experience
Great knowledgeable mechanic. Goes the extra step, leaves driveway clean, very friendly.

Theodore

16 years of experience
1355 reviews
Theodore
16 years of experience
A good experience. Theodore didn't rush me or push me to get extra repairs done. He answered all my questions and did additional inspection without charging extra.

Albin

6 years of experience
17 reviews
Albin
6 years of experience
Arrived on time did a great job change spark plugs did oil change valve cover gasket washed the valve cover put everything back together started the car check the brakes check for leaks and checked the complete car would recommend this is best mechanic

Nazareth

27 years of experience
190 reviews
Nazareth
27 years of experience
Very good and quick work. He explained what he was doing and even showed me other issues on my car that needed to be addressed.


How much does Spark Plug Replacement cost in Ballwin?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2009 Chevrolet Equinox $127 $31.50 $95.98 20% $160.50
2014 Mazda CX-5 $188 $107.88 $79.99 12% $215.38
2009 Volvo XC70 $248 $151.74 $95.98 11% $280.74
2016 Lincoln MKT $165 $52.80 $111.98 18% $203.30
2009 Mercedes-Benz E300 $310 $166.33 $143.98 13% $359.83
2009 Chevrolet Corvette $326 $157.55 $167.97 15% $383.30

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