Mercury Bobcat 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

(50)

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

(50)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Mercury Bobcat Spark Plug Replacement is $205 with $110 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1976 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$335.55Shop/Dealer Price$400.69 - $573.61
1978 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$315.55Shop/Dealer Price$380.71 - $553.64
1980 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$315.55Shop/Dealer Price$380.71 - $553.64
1977 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$315.55Shop/Dealer Price$380.69 - $553.60
1975 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$315.55Shop/Dealer Price$380.72 - $553.67
1979 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$315.55Shop/Dealer Price$380.71 - $553.64
Show example Mercury Bobcat Spark Plug Replacement prices

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

(50)

Rating Summary
49
0
0
0
1
49
0
0
0
1

Norberto

14 years of experience
6 reviews
Norberto
14 years of experience
Mercury Monterey V6-4.2L - Spark Plugs - Austell, Georgia
I love that you tell us not only about what you fix, but also what we need to GET fixed. 10/10 Highly Recommended

Duane

25 years of experience
510 reviews
Duane
25 years of experience
Mercury Grand Marquis V8-4.6L - Spark Plugs - San Diego, California
Duane was quick and efficient. Great about keeping pricing reasonable.

Cary

27 years of experience
92 reviews
Cary
27 years of experience
Mercury Cougar V6-2.5L - Spark Plugs - Benson, North Carolina
my experience was wonderful

Ronald

41 years of experience
301 reviews
Ronald
41 years of experience
Mercury Cougar V8-4.6L - Spark Plugs - Spring, Texas
Ron perform as a professional He did a Great job I would recommend him to anyone Will request him on my next service on my auto. John S

Excellent Rating

(50)

Rating Summary
49
0
0
0
1
49
0
0
0
1
Number of Mercury Spark Plug Replacement services completed
550+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

The Guide to Colored Curb Zone Laws in Arkansas
Drivers Drivers in Arkansas need to be careful when they are driving on the roadways. They need to pay attention to the other motorists, and they have to obey the laws and regulations. However, they also have a responsibility when...
The Guide to Right-of-Way Laws in New York
Traffic Traffic signals and signs are not always sufficient to resolve conflicts in traffic. Just as an example, a green light does not mean you can turn left if another vehicle is traveling forward through an intersection. And in unmarked...
P2330 OBD-II Trouble Code: Ignition Coil K Primary Control Circuit Low
P2330 means that there is a problem with a primary or secondary circuit of ignition coil K. This is typically due to damaged or frayed wiring.

Can anything other than the cat cause that code to appear?

Unfortunately, no trouble code (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau) was mentioned with this question. Catalytic converter failure will usually cause trouble codes that are related to the oxygen sensors due to the fact that the oxygen sensors pick up their data based on the...

Able to get my trunk open, by crawling through the back, but the trunk release button (hold unlock button on door) still won't ope

Hello, and thank you for writing in. The first thing we need to determine is if there an issue with the latch, the switch, the key fob, or possibly the wiring. The best way to determine this is to test...

Car jerks hard before stop and when accelerating from stop position. Only when the car is warmed up.

The source of the fault first has to be distinguished as "transmission versus engine". Of course, there can be issues in both components, too. If this is transmission related though, I see at least three Volkswagen technical service bulletins (TSB's)...

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