Mitsubishi Mighty Max 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

(12)

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

(12)

Spark Plug Replacement Estimate for Mitsubishi Mighty Max

Mitsubishi Mighty Max Spark Plug Replacement costs $264 on average.

CarServiceEstimateShop/Dealer Price
1991 Mitsubishi Mighty MaxL4-2.4LService typeSpark Plug ReplacementEstimate$136.23Shop/Dealer Price$157.69 - $194.17
1983 Mitsubishi Mighty MaxL4-2.3L Turbo DieselService typeSpark Plug ReplacementEstimate$609.11Shop/Dealer Price$753.81 - $1159.96
1985 Mitsubishi Mighty MaxL4-2.6LService typeSpark Plug ReplacementEstimate$273.83Shop/Dealer Price$334.71 - $489.40
1990 Mitsubishi Mighty MaxV6-3.0LService typeSpark Plug ReplacementEstimate$370.75Shop/Dealer Price$455.84 - $683.20
1983 Mitsubishi Mighty MaxL4-2.0LService typeSpark Plug ReplacementEstimate$116.23Shop/Dealer Price$137.72 - $174.23
1986 Mitsubishi Mighty MaxL4-2.0LService typeSpark Plug ReplacementEstimate$116.23Shop/Dealer Price$137.71 - $174.20
1984 Mitsubishi Mighty MaxL4-2.0LService typeSpark Plug ReplacementEstimate$305.55Shop/Dealer Price$372.97 - $547.60
1992 Mitsubishi Mighty MaxV6-3.0LService typeSpark Plug ReplacementEstimate$375.75Shop/Dealer Price$461.09 - $688.66
Show example Mitsubishi Mighty Max 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 Mitsubishi mechanics

Real customer reviews from Mitsubishi owners like you.

Excellent Rating

(12)

Rating Summary
10
0
0
1
1
10
0
0
1
1

Theodore

10 years of experience
1656 reviews
Theodore
10 years of experience
Mighty Max 1988 - Tune-up - Lynnwood, WA
Quick and gave good advice.

Victor

0 years of experience
196 reviews
Victor
0 years of experience
Mighty Max 1988 - Car is not starting - Corrales, NM
Very professional friendly great communication. Victor got a very special vehicle up and running again which means a lot to me Victor is very knowledgeable and was equipped to work on my 30 year old vehicle. I recomend Victor for anyone who wants their vehicle taken care of

Excellent Rating

(12)

Rating Summary
10
0
0
1
1
10
0
0
1
1
Number of Mitsubishi Mighty Max services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mitsubishi MECHANICS
700+
experts on our platform

Recent articles & questions

P2144 OBD-II Trouble Code: Exhaust Gas Recirculation Vent Control Circuit Low
P2144 code means the powertrain control module has detected a fault with the rate of flow through the exhaust gas recirculation vent control circuit.
P2170 OBD-II Trouble Code: Exhaust Press Regulator Vent Solenoid Control Circuit Low
Trouble code P2170 means the control module the measured values from the MAP, MAF, and TP sensors are not within the correct range.
P0989 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch E Circuit Low
P0989 means there is an issue with the E circuit in the transmission fluid pressure sensor, likely due to a bad sensor, solenoid, or fluid level.

Hello I have a 2013 Ford Fusion an it just won’t start the key was broke it was a FOB key but I purchased a new one an I had it programmed but it’s like the key not getting any juice to the [starter](/topics-starter-ford/) but the systt But the starter is good

No start

A large voltage drop is going to be a bad cable or connections either at battery or starter and engine grounds. Try doing a voltage drop for the positive and negative cables and also try using a jump to the...

metallic smell from under dash after fuse blew out for interior lights

Smoke is worrisome as electrical faults do cause fires. Seems like you had smoke only so you are lucky. Obviously, don't put back a higher capacity (that is, "incorrect") fuse as such will allow too much current to flow on...

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