Jeep Wrangler 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

(31)

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

(31)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Jeep Wrangler Spark Plug Replacement is $163 with $23 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 Jeep WranglerL4-2.4LService typeSpark Plug ReplacementEstimate$348.84Shop/Dealer Price$400.90 - $548.98
2021 Jeep WranglerV8-6.4LService typeSpark Plug ReplacementEstimate$643.79Shop/Dealer Price$752.74 - $1073.40
2006 Jeep WranglerL6-4.0LService typeSpark Plug ReplacementEstimate$250.15Shop/Dealer Price$278.05 - $357.56
2004 Jeep WranglerL6-4.0LService typeSpark Plug ReplacementEstimate$250.15Shop/Dealer Price$278.05 - $357.56
2010 Jeep WranglerV6-3.8LService typeSpark Plug ReplacementEstimate$448.11Shop/Dealer Price$523.65 - $742.04
2019 Jeep WranglerL4-2.0L TurboService typeSpark Plug ReplacementEstimate$372.99Shop/Dealer Price$428.29 - $589.24
2021 Jeep WranglerL4-2.0L Turbo HybridService typeSpark Plug ReplacementEstimate$372.99Shop/Dealer Price$428.15 - $589.00
1997 Jeep WranglerL4-2.5LService typeSpark Plug ReplacementEstimate$232.15Shop/Dealer Price$255.55 - $321.56
Show example Jeep Wrangler 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

(31)

Rating Summary
30
1
0
0
0
30
1
0
0
0

Wesley

7 years of experience
83 reviews
Wesley
7 years of experience
Wrangler 2008 - Spark Plugs - Cave Creek, AZ
Very professional and did a great Job. Once again your Tecs are the best. Thank you.

Jason

0 years of experience
417 reviews
Jason
0 years of experience
Wrangler 2001 - Spark Plugs - Tucson, AZ
Jason's the best...accomplished what no one else could!

Duy

10 years of experience
116 reviews
Duy
10 years of experience
Wrangler 2011 - Spark Plugs - Austin, TX
Helpful and experienced

Andrew

0 years of experience
351 reviews
Andrew
0 years of experience
Wrangler 1998 - Spark Plugs - Glen Burnie, MD
Very knowledgeable , courteous and professional

Excellent Rating

(31)

Rating Summary
30
1
0
0
0
30
1
0
0
0
Number of Jeep Wrangler Spark Plug Replacement services completed
341+
services done by our mechanics
TOTAL NUMBER OF EXPERT Jeep MECHANICS
1300+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Fuel Pump Relay
If the engine is stalling or not starting, or the fuel pump is not making any noise when the key is on, you may need to replace the fuel pump relay.
How to Install New Rotors
A A brake rotor (https://www.yourmechanic.com/parts/brake-rotor) is one of the key components to helping bring your car to a stop. The brake pads squeeze together against the rotor, which spins with the wheel, to apply friction and stop the rotation of...
P0799 OBD-II Trouble Code: Pressure Control Solenoid “C” Intermittent
P0799 means that there is an issue with one of the pressure control solenoids due to faulty wiring, low or dirty fluid, or defective solenoid.

Car pulls to the right after tire rotation and balancing

Hello. Thanks for writing in about your Infiniti EX35. A pull to the right is not normal. If the alignment is in specification, then the frame needs to be checked as it may not be straight. If it is, then...

my beetle burning oil

The specifications for the engine oil on your vehicle should be on a sticker under the hood. Normally, it is located on the radiator cover, the front of the hood, or on an emission sticker near the firewall. The information...

How Can I deactivate my alarm on my 1999 Chrysler Town and Country to get it to start?

Hi there. Unfortunately, we're unable to offer you the steps for temporarily disabling or bypassing the alarm system - as without the proper equipment or training, it can result in other electrical system component failure and cause more problems than...

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 (844) 997-3624 · hi@yourmechanic.com