Mercury Commuter Spark Plug Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

customer ratings

(49)

Included for free with this service

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.

customer ratings

(49)

Spark Plug Replacement Estimate for Mercury Commuter

Mercury Commuter Spark Plug Replacement costs $153 on average.

CarServiceEstimateShop/Dealer Price
1963 Mercury CommuterV8-6.4LService typeSpark Plug ReplacementEstimate$225.75Shop/Dealer Price$269.59 - $373.21
1963 Mercury CommuterV8-6.6LService typeSpark Plug ReplacementEstimate$205.75Shop/Dealer Price$249.61 - $353.24
1962 Mercury CommuterV8-5.8LService typeSpark Plug ReplacementEstimate$205.75Shop/Dealer Price$249.61 - $353.24
1967 Mercury CommuterV8-7.0LService typeSpark Plug ReplacementEstimate$205.75Shop/Dealer Price$249.59 - $353.20
1960 Mercury CommuterV8-7.0LService typeSpark Plug ReplacementEstimate$205.75Shop/Dealer Price$249.62 - $353.27
1962 Mercury CommuterV8-6.4LService typeSpark Plug ReplacementEstimate$205.75Shop/Dealer Price$249.61 - $353.24
1962 Mercury CommuterV8-4.8LService typeSpark Plug ReplacementEstimate$210.75Shop/Dealer Price$254.47 - $358.00
1966 Mercury CommuterV8-7.0LService typeSpark Plug ReplacementEstimate$210.75Shop/Dealer Price$254.84 - $358.66
Show example Mercury Commuter Spark Plug Replacement prices

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


Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(49)

Rating Summary
48
0
0
0
1
48
0
0
0
1

William

10 years of experience
1 reviews
William
10 years of experience
Mercury Grand Marquis V8-4.6L - Spark Plugs - Batavia, Ohio
Excellent experience! I will use this service again!

Harish

27 years of experience
588 reviews
Harish
27 years of experience
Mercury Mountaineer V8-5.0L - Spark Plugs - Charlotte, North Carolina
job very well done on time and for me even better 30 minutes early harish is the man who cares about what he does thanks George p

Eliseo

12 years of experience
239 reviews
Eliseo
12 years of experience
Mercury Grand Marquis V8-4.6L - Spark Plugs - Humble, Texas
Great mechanic, quick service.

Ronnie

30 years of experience
94 reviews
Ronnie
30 years of experience
Mercury Mariner V6-3.0L - Spark Plugs - Pegram, Tennessee
Ronnie was great! He was very understanding and helpful. Will definitely be using him again.

Excellent Rating

(49)

Rating Summary
48
0
0
0
1
48
0
0
0
1
Number of Mercury Spark Plugs Replacement services completed
539+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

How to Replace a Lost or Stolen Car Title in Maryland
If If you live in the state of Maryland and own your vehicle then you also have what is called a title. This title proves that you are the registered owner of the vehicle. You'll need this title if you...
The Traveler’s Guide to Driving in Ecuador
Ecuador Ecuador is home to many interesting places to visit, including an array of museums. The National Museum of Ecuador, located at the Casa de la Cultura, has a variety of archeological treasures. The National Cathedral Museum, the Museum of...
How to Choose Speakers for Your Car Stereo
Whether you're replacing a car's speaker that's blown or just want to upgrade the sound system. Be sure to pick the right speakers that work for you.

i think its the water pump

Be sure the drain plug on the bottom of the radiator is closed and secure. There are a variety of potential leak points in the cooling system. If, using a mirror, you can see coolant leaking out of the water...

Why is my check engine light not coming on after first turn of the key and does this mean my computer is dead

Hi there. It is possible that the ECU is damaged; however, it could be a simple problem like a damaged fuse, damaged electrical relay or problems with the dashboard itself. It's best to have a professional mechanic to complete a...

Clicking sound

What you are describing sounds like a failing CV joint. A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV joint...

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