This price range is based on national averages for all vehicles and does not factor in taxes, fees, or your particular make and model. Related repairs or maintenance, such as new spark plug wires, may also be needed. For a more accurate estimate based on your make, model, and location, use the RepairPal Fair Price Estimator.
Cost at the Mechanic: $196-$251
A Jiffy Lube spark plug replacement can take anywhere from one to four hours to complete, depending on what type of repairs are needed and the make and model of your vehicle. The total cost will also depend on the size of your engine, and whether it has four, six, eight, or more spark plugs that need to be replaced.
Cost to DIY: $70-$93
If you’re looking to save money, you might consider replacing your vehicle’s spark plugs yourself. While how much you spend will depend on how many spark plugs you need to replace, you can reduce your expenses significantly by eliminating labor costs. Usually, vehicles require between four and 16 spark plugs. You can choose whether you want to invest in a more expensive option, like platinum-tipped spark plugs, for a longer lifespan, or opt for conventional spark plugs, which are typically less expensive. There are also many different types of spark plugs, and not all plugs fit all vehicles. Refer to your owner’s manual to learn exactly which spark plugs are recommended for your car.
What Is a Spark Plug?
A spark plug is a device that ignites the fuel and air mixture in your vehicle. Each spark plug features a metal threaded shell, a ceramic insulator, and a central electrode that extends into the combustion chamber. At precisely the right moment, the engine management computer sends electricity through this electrode, creating a spark inside the combustion chamber that ignites the fuel/air mixture.
The number of spark plugs your engine has may vary depending on the type of vehicle you drive. While the majority of engines require just one spark plug for each cylinder, a few models require two spark plugs for each cylinder.
What Does a Jiffy Lube Spark Plug Replacement Include?
When you take your vehicle into Jiffy Lube for a spark plug replacement, an auto mechanic will remove your spark plugs and inspect your ignition system. Then, they will replace your spark plugs with new ones that meet the manufacturer’s recommendations. Jiffy Lube also includes a tune-up when they replace your spark plugs to revitalize your vehicle’s engine performance and reduce emissions.
This service covers a visual inspection of the engine’s ignition system. If the spark plug wires need to be replaced, one of the auto mechanics will do so at this time. Vehicles equipped with on-board diagnostics (OBD) may also receive a pre-diagnostic and post-diagnostic check as part of the tune-up service.
What Happens If You Don’t Replace Your Spark Plugs?
Over time, the normal wear and tear from driving your vehicle will cause its spark plugs to work less efficiently. As this happens, you may notice a decrease in power, performance, and fuel economy, which means you may be paying more at the gas pump. You’ll also likely experience a rougher idle. If you wait too long to have your spark plugs replaced, you may even find that your vehicle is unreliable, prone to frequent stalling, and difficult to start.
How Often To Replace Your Spark Plugs
It’s typically a good idea to replace your spark plugs every 30,000 miles, but there are several factors that can affect how often you may need this service, including the make and model of your vehicle. If you’re not sure whether it’s time to have your spark plugs replaced, consult your vehicle’s owner’s manual to determine what the manufacturer recommends. You can also use the FIXD scanner and app to get a full maintenance schedule for your car.
Common Symptoms You Need To Replace Your Spark Plugs
A few common symptoms you may notice that indicate you may need to replace your vehicle’s spark plugs include:
- Rough idling
- Engine vibrations
- Power loss
- Poor gas mileage
- Engine stalling or failing to start
You may also see the check engine light come on. Depending on the make and model of your vehicle, this warning light may be either flashing or solid. If your vehicle shows a code P0300, indicating a misfire, stop driving it immediately. This code indicates that there is a severe issue causing multiple misfires, which may be a result of faulty spark plugs. Take your vehicle to a mechanic as soon as possible and have it inspected to prevent damaging the catalytic converter or potentially causing additional and more severe problems with your engine.
Related Maintenance Services
Here are a few related maintenance services that you might consider performing at the same time as your Jiffy Lube spark plug replacement to save time and keep your vehicle running smoothly:
- Spark plus wire replacement
- Air filter replacement
- Fuel system service
- Mass airflow sensor cleaning and replacement
- Serpentine belt replacement
Never Miss Important Maintenance Again With FIXD
Get the FIXD scanner and app today for a custom maintenance schedule based on your make, model, and mileage. FIXD sends automated maintenance alerts right to your phone so you never forget oil changes, tire rotations, brake pad replacements, and more. It even tracks tire, wiper, and battery life to keep your car running smoothly. Get FIXD today and take the stress out of car care. It’s that simple.
At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. Our research team utilizes the latest automotive data and insights to create tools and resources that help drivers get peace of mind and save money over the life of their car.