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

(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 Bobcat

Mercury Bobcat Spark Plug Replacement costs $202 on average.

CarServiceEstimateShop/Dealer Price
1978 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$320.55Shop/Dealer Price$388.09 - $562.81
1977 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$300.55Shop/Dealer Price$368.11 - $542.84
1975 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$300.55Shop/Dealer Price$368.11 - $542.84
1976 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$300.55Shop/Dealer Price$368.09 - $542.80
1980 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$300.55Shop/Dealer Price$368.12 - $542.87
1979 Mercury BobcatL4-2.3LService typeSpark Plug ReplacementEstimate$300.55Shop/Dealer Price$368.11 - $542.84
Show example Mercury Bobcat 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

Luis

12 years of experience
78 reviews
Luis
12 years of experience
Mercury Cougar V6-3.8L - Spark Plugs - Albuquerque, New Mexico
Very down to earth, enjoyed the conversations. Highly recommend!!

Matthew

33 years of experience
1164 reviews
Matthew
33 years of experience
Mercury Milan L4-2.5L - Spark Plugs - Newport News, Virginia
Absolutely flawless service. Professional and efficient.

Matthew

33 years of experience
1164 reviews
Matthew
33 years of experience
Mercury Grand Marquis V8-4.6L - Spark Plugs - Norfolk, Virginia
3rd time he has worked on my cars. Very happy with his work. I will ask for him the next time I need anything done.

Breck

20 years of experience
681 reviews
Breck
20 years of experience
Mercury Mariner V6-3.0L - Spark Plugs - Houston, Texas
He came early and completed my repairs with a smile.

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

Symptoms of a Bad or Failing Electronic Spark Control
Common signs include engine performance issues, engine stalling, the car not starting, and the engine not sparking.
P0902 OBD-II Trouble Code: Clutch Actuator Circuit Low
What What the P0902 code means The P0902 is a generic OBD-II powertrain code, which means it applies to all makes and models of vehicles from 1996 to the present. What causes the P0902 code? There may be one...
How to Identify Car Exhaust Issues
Exhaust systems in cars cool the engine and keeps the environment safe from harmful gases. Even in small doses carbon monoxide can be very harmful.

Car doesn't go into gear.

This problem is not a common problem on these vehicles and the problem may be a major transmission pan leak and fluid got too low to engage the transmission. If the linkage is disconnected from a broken shift cable would...

accidentally hooked up jumper cables backwards. No there is no spark on plugs and the fuel pump is running with the engine off.

Hello - the engine management computer controls the fuel pump (through a relay). The lack of spark may be related to a failed crankshaft position sensor, or possibly one or more of the coil packs. Failure of these will yield...

05 ford explorer cranks wont start have spark fuel pump is workin what else cld it be??

Hello, thank you for writing in. There are several other tests that you will want to run on the vehicle, or have tested. To start, although you do hear the fuel pump running, the fuel filter or a line may...

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