How do you change spark plugs on a Subaru?

Steps to Change Spark Plugs on a Subaru
To change the spark plugs on a Subaru, you can follow these steps:
1. Order OEM Replacement Spark Plugs: Before starting the process, it is recommended to replace all the spark plugs at once, even if only one is bad. This is more cost and labor efficient. Make sure to order the right OEM spark plugs for your specific Subaru model.
2. Remove the Air Filter Housing: Begin by removing the air filter housing. This will provide access to the spark plugs. Refer to the specific instructions for your Subaru model to ensure the correct removal process.
3. Disconnect the Spark Plug Wires: Carefully disconnect the spark plug wires from the spark plugs. It is important to keep track of which wire corresponds to each spark plug to avoid confusion during reinstallation.
4. Remove the Old Spark Plugs: Use a spark plug socket and a ratchet to remove the old spark plugs. Turn them counterclockwise to loosen and remove them from the engine.
5. Inspect and Clean: Take a moment to inspect the old spark plugs for signs of wear or damage. If necessary, clean the spark plug threads and electrode using a wire brush or spark plug cleaner. This will ensure proper performance and longevity of the new spark plugs.
6. Install the New Spark Plugs: Apply a small amount of anti-seize compound to the threads of the new spark plugs. Carefully insert the new spark plugs into the engine and tighten them by hand. Use a torque wrench to tighten them to the manufacturer’s specifications. Be careful not to overtighten, as this can damage the spark plugs or the engine.
7. Reconnect the Spark Plug Wires: Reconnect the spark plug wires to the corresponding spark plugs. Make sure they are securely attached and in the correct order.
8. Replace the Air Filter Housing: Once the spark plugs are installed and the wires are connected, replace the air filter housing. Ensure that it is properly secured and in the correct position.
That’s it! You have successfully changed the spark plugs on your Subaru. Remember to consult your vehicle’s manual or seek professional assistance if you have any doubts or concerns during the process.
Please note that the specific steps may vary depending on the Subaru model and year. It is always recommended to refer to the vehicle’s manual or consult a professional for detailed instructions.
Let me know if there’s anything else I can help with!

Can I drive with a bad spark plug?

Ideally, you should replace them immediately. However, you can get by for a short while, as long as they aren’t misfiring. Poor spark keeps fuel from being burned inside the combustion chamber. This reduces power and fuel economy, and it makes it harder for the engine to idle.

Can you drive with bad spark plugs?

Ideally, you should replace them immediately. However, you can get by for a short while, as long as they aren’t misfiring. Poor spark keeps fuel from being burned inside the combustion chamber. This reduces power and fuel economy, and it makes it harder for the engine to idle.

How long do spark plugs last in a Subaru?

How Often Should You Have the Spark Plugs in Your Subaru Changed? Modern SUBARU BOXER® engines require improved spark plugs made with material like platinum. This means you’ll only have to worry about changing them every 60,000 miles or so.

Do you need a special tool to change spark plugs?

Spark Plug Sockets
These special sockets contain rubber isolators inside intended to absorb any possible vibration within and protect the glass featured along the spark plug. Regular sockets do not contain the rubber feature and using them may result in breakage when attempting a spark plug replacement.

Is it hard to replace spark plugs on Subaru?

Last night when I changed them I realized how to do it. 2 screws take your windshield washer fluid reservoir off on the drivers side, one bolt takes the air box off on the passenger side. From there it’s a straight shot to pull the plugs, no joints needed. Plugs changed in 15 minutes, hood open to close.

How much does it cost to change spark plugs yourself?

How much does it cost to replace a spark plug yourself? If you drive a compact car with a four-cylinder engine, an average set of platinum spark plugs will cost you about $32 or so. A six-cylinder will cost around $48, and a V8 will be around $64 for the parts alone.

What is the life expectancy of spark plugs?

Luckily, spark plugs don’t wear out very quickly. You can typically get 80,000 miles on them before they need replacing. But if you notice any of these symptoms, it’s time to get your spark plugs checked out with an engine tune up.

Can I replace spark plugs myself?

If you’re not comfortable with that, take your vehicle to a pro. But if your engine affords easy access to the rear bank, you can probably do the job yourself. Just be sure you gap the spark plugs properly and use a torque wrench. The tools shown are available at online suppliers and auto parts stores.

How do you know if spark plugs are bad?

The most common signs of bad spark plugs include start-up trouble, rough idling, sluggish acceleration, declining fuel economy, engine misfiring, and engine knocking.

How much does it cost to change spark plugs on a Subaru?

So it is important to have them replaced at the recommended intervals to keep your Subaru running as smooth as possible. The average cost to have your spark plugs replaced starts at around $100 up to $300+, depending on the type of spark plugs needed.