Spark Plug Replacement at your home or office in Glendale.

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received a Spark Plugs Replacement.
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$85.99 - $567.32

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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How much does Spark Plug Replacement cost in Glendale?

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

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2010 Pontiac Vibe $119 $48.92 $69.99 23% $156.42
2005 Hyundai XG350 $364 $175.04 $188.97 21% $465.29
2010 Ford Flex $296 $184.23 $111.98 16% $356.23
2010 BMW 128i $382 $221.04 $160.97 18% $468.29
2004 Audi A8 Quattro $192 $122.16 $69.99 16% $229.66
2014 Porsche 911 $613 $186.00 $426.93 27% $841.75

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Recent Spark Plug Replacement reviews in Glendale

Excellent Rating


YourMechanic Spark Plug Replacement Service

Average Rating

4.9/5

Number of Reviews

3,187

Rating Summary
2,998
116
15
12
46
2,998
116
15
12
46
Tien

Tien

20 years of experience
746 reviews
Tien
20 years of experience
Quick and efficient
Peter

Peter

22 years of experience
41 reviews
Peter
22 years of experience
Peter did a wonderful job. He explained in detail what he was doing and answered all my questions clearly. He performed his work up and beyond what I was hoping for. I highly recommend Peter.
Rigoberto

Rigoberto

8 years of experience
517 reviews
Rigoberto
8 years of experience
Top notch mechanic. Very professional and knowledgeable. Would highly recommend him!
Nicholas

Nicholas

8 years of experience
269 reviews
Nicholas
8 years of experience
He showed up ahead of schedule and was finished in half the time I expected him to be. Super professional and efficient. A secondary issue popped up after he was finished and he provided a quick fix which immediately took care of it. He suggested a few minor additional services and I will definitely be booking another appointment with him to address those 2 items next weekend.


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