Saturn L300 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

(43)

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

(43)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Saturn L300 Spark Plug Replacement is $198 with $58 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 Saturn L300V6-3.0LService typeSpark Plug ReplacementEstimate$812.14Shop/Dealer Price$916.76 - $1207.92
2004 Saturn L300V6-3.0LService typeSpark Plug ReplacementEstimate$786.91Shop/Dealer Price$886.58 - $1174.04
2002 Saturn L300V6-3.0LService typeSpark Plug ReplacementEstimate$786.91Shop/Dealer Price$886.65 - $1174.16
2004 Saturn L300L4-2.2LService typeSpark Plug ReplacementEstimate$262.71Shop/Dealer Price$293.75 - $382.68
2001 Saturn L300V6-3.0LService typeSpark Plug ReplacementEstimate$786.91Shop/Dealer Price$890.77 - $1181.37
2005 Saturn L300V6-3.0LService typeSpark Plug ReplacementEstimate$786.91Shop/Dealer Price$887.04 - $1174.84
Show example Saturn L300 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 Saturn mechanics

Real customer reviews from Saturn owners like you.

Excellent Rating

(43)

Rating Summary
42
0
0
0
1
42
0
0
0
1

Josh

17 years of experience
78 reviews
Josh
17 years of experience
Saturn L300 V6-3.0L - Exhaust fume odor in car Inspection - Naples, Florida
Josh told me exactly what was wrong with my car and the repair was done quickly and even got something better to fix my problem. I am satisfied with his work.

Timothy

23 years of experience
107 reviews
Timothy
23 years of experience
Saturn L300 V6-3.0L - Heater Blower Motor - Kent, Washington
Timothy was very knowledgeable, honest and personable. Did a great job and explained everything to me. I would highly recommend Your Mechanic and Timothy Holder.

David

17 years of experience
639 reviews
David
17 years of experience
Saturn L300 V6-3.0L - Oil Change - Fairfield, California
I was very happy with David work...

Jasmine

24 years of experience
102 reviews
Jasmine
24 years of experience
Saturn L300 V6-3.0L - Brake Pads Replacement (Rear) - Milwaukee, Wisconsin
Right on time! Did the work in 1 hour, neat, clean. Brakes worked. Awesomely! Would recommend to anyone! Did the work on a Sunday at 11 am right in my driveway while I cleaned out my garage. An awesome way to work done on your car.

Excellent Rating

(43)

Rating Summary
42
0
0
0
1
42
0
0
0
1
Number of Saturn L300 services completed
473+
services done by our mechanics
TOTAL NUMBER OF EXPERT Saturn MECHANICS
700+
experts on our platform

Recent articles & questions

How to Customize a Chrysler 300
The The Chrysler 300 (https://www.yourmechanic.com/article/a-buyer-s-guide-to-the-2012-chrysler-300) is an extremely popular model of sedan with sleek styling reminiscent of more expensive brands like the Bentley at a far more affordable price. It’s a great long-distance cruiser with get-up-and-go, which inspires great loyalty...
P2082 OBD-II Trouble Code: Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 1
What What the P2082 code means? The P2082 code means that the exhaust gas temperature (EGT) sensor has been found to have out of range sensor readings. When these out of range sensor readings are found with the bank 2...
Symptoms of a Bad or Failing Air Filter
Check if your car's air filter is dirty. If you notice a decrease in gas mileage or engine performance, you may have to replace your air filter.

squeaks when it "bounces" up and down.. clearly needs lubrication

Hi! After 20 years, the rubber bushings in the steering and suspension components can become dry, cracked, and worn out. Any type of lubrication applied will be a very temporary quieting of worn out parts like control arm bushings and...

HOW TO FIX EPS WARNING LIGHT ON A HYUNDAI I 20

Hello. The electronic power steering system is a newer form of power steering the uses an electric motor and gear reduction to assist with steering. This of course replacing the standard hydraulic power steering fluid system. The warning light will...

Can a rear impact accident cause problems with the VSA? SYSTEM MALFUNCTIONED AFTER THE ACCIDENT

Hello, thank you for writing in. The VSA or Vehicle Stability Assist system is designed to work with the ABS system to keep control of the vehicle at all times in all conditions. It uses several of the same sensors...

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