How to change spark plugs on a Subaru?

Steps to Change Spark Plugs on a Subaru
Changing spark plugs on a Subaru involves several steps. Here’s a general guide to help you through the process:
1. Order OEM Replacement Spark Plugs: It’s important to find the right part number for your exact Subaru model. Even if only one plug has gone bad, it’s recommended to replace all of them at once for cost and labor efficiency.
2. Time Frame: The time required for the task can vary based on your tools, experience, and ingenuity. For first timers, it may take around two hours, while those well-versed with the process may take around one hour.
3. Tools: The trick to changing Subaru spark plugs lies in finding the right combination of extensions of various lengths, wobble adapters, and problem-solving tools. The more of these tools you have, the easier the task becomes.
4. Parts: You can find OEM NGK spark plugs for your Subaru at your favorite Subaru parts supplier.
5. Instructions for Specific Models: If you have a specific Subaru model, such as the Impreza WRX and STI, there are specific instructions available for changing the spark plugs. However, it’s noted that this is a fiddly and difficult job mainly due to the lack of space between the engine and chassis. It’s recommended that the work is carried out by a qualified vehicle technician.
Conclusion
Changing spark plugs on a Subaru involves ordering the right replacement plugs, using the appropriate tools, and following specific instructions for your model if available. It’s also important to consider the time required and the level of difficulty based on your experience and the specific Subaru model you have.

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.

How long do Subaru spark plugs last?

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.

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 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.

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.

Is it cheaper to replace spark plugs yourself?

If it’s a task you aren’t comfortable doing on your own, spark plug replacement cost at a repair shop will have labor costs higher than the parts. For instance, a set of four spark plugs in a compact car will likely be around $50 to $80 to install.

How much should I pay someone to change my spark plugs?

Factoring in parts and labor, the cheapest spark plug replacement costs between $100 and $250, and the highest is between $250 and $500. It is ideal to replace all spark plugs at once to avoid dealing with different replacement cycles and to achieve optimum performance.

Does AutoZone install spark plugs?

Rather than the chef who cooks it for you. Sure they’ll give you all the advice guidance. And recipe tips. But you’re the one whipping up the feast.

Does Autozone replace spark plugs?

As a rule they do not, as it would hurt their commercial business. You may find an employee who will, but they shouldn’t. They will tell you any number of local shops you can trust to do it, or sell you a manual and the tools you need to do it yourself.

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.