Jeep CJ5 Spark Plug Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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.

See availability

Customer Ratings

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Jeep CJ5 Spark Plug Replacement is $112 with $17 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1980 Jeep CJ5L4-2.5L	Service typeSpark Plug Replacement	Estimate$148.27	Shop/Dealer Price$166.59 - $199.05
1963 Jeep CJ5L4-2.2L	Service typeSpark Plug Replacement	Estimate$232.99	Shop/Dealer Price$277.51 - $388.52
1971 Jeep CJ5V8-5.0L	Service typeSpark Plug Replacement	Estimate$225.87	Shop/Dealer Price$268.61 - $374.28
1970 Jeep CJ5L4-2.2L	Service typeSpark Plug Replacement	Estimate$232.99	Shop/Dealer Price$277.49 - $388.48
1979 Jeep CJ5L6-4.2L	Service typeSpark Plug Replacement	Estimate$277.99	Shop/Dealer Price$333.77 - $478.55
1972 Jeep CJ5L6-4.2L	Service typeSpark Plug Replacement	Estimate$277.99	Shop/Dealer Price$333.76 - $478.52
1973 Jeep CJ5L6-4.2L	Service typeSpark Plug Replacement	Estimate$282.99	Shop/Dealer Price$338.62 - $483.28
1983 Jeep CJ5L6-4.2L	Service typeSpark Plug Replacement	Estimate$282.99	Shop/Dealer Price$338.99 - $483.94

Show example Jeep CJ5 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 Jeep mechanics

Real customer reviews from Jeep owners like you.

Excellent Rating

(21)

Rating Summary

20

1

0

0

0

20

1

0

0

0

SEE REVIEWS NEAR ME

Juan

29 years of experience

70 reviews

Juan

29 years of experience

by PERRY

Jeep CJ5 L6-4.2L - Car is not starting - Woodland Hills, California

Robert

27 years of experience

333 reviews

Robert

27 years of experience

by Joe

Jeep CJ5 V8-5.0L - Alternator - Washington, District of Columbia

Thumb Up

Peter

25 years of experience

514 reviews

Peter

25 years of experience

by Marco

Jeep CJ5 V8-5.0L - Car is hard to start - Los Angeles, California

Peter is amazing. I just requested another appt and I want Peter to come Wednesday. I can’t imagine ever doing this any other way. You guys have amazing people working for you.

Gustavo

17 years of experience

400 reviews

Request Gustavo

Gustavo

17 years of experience

Request Gustavo

by L

Jeep CJ5 V6-3.7L - Car is not starting - San Antonio, Texas

Gustavos was contacted to inspect my Jeep CJ5 for starting issues. He communicated with me several times about the appointment. He was prompt, assessed the issues and actually got the jeep running within his time frame. He was very professional, new what he was doing and had all the proper tools. I would recommended him to anyone. I am super pleased. Doug

Excellent Rating

(21)

Rating Summary

20

1

0

0

0

20

1

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

Symptoms of a Bad or Failing Ball Joint (Front)

Common signs include clunking noises and excessive vibration from the front, and you may start steering to the right or left unintentionally.

How to Renew Your Car Registration in Missouri

Most Most people neglect to see just how much of a privilege it is to drive on the roads in their area. For most Missouri residents, driving is something that they do without giving it much thought. Before you are...

P0658 OBD-II Trouble Code: Actuator Supply Voltage “A” Circuit Low

P0658 means that there is a fault in the actuator supply voltage due to Shorted or open wires or damaged connectors in the PCM, or a control module.

Turbo causing acceleration problem

Hi there. A turbocharger is is divided into two sections: the turbine and compressor. The turbine is attached to the exhaust manifold and is driven by exhaust gas pressure. The turbine is connected by a shaft to the compressor. The...

After driving the car for 10-15 miles , if I stop the engine and try to start it will CRANK but wont start

Next time this happens, push the gas pedal all the way to the floor. This puts the car into what is called clear flood mode. This means the Powertrain Control Module (PCM) will not supply injector pulse to the injectors,...

My 99 Chevy tahoe vortec 5.7l has a code p0300 random misfire what code this be?

Hi Demario. Thanks for contacting us today. In a modern combustion engine, if more than one cylinder misfires, this will increase or decrease the revolutions per minute (RPM) of the crankshaft. If that increase and/or decrease is more than 2...

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