When to replace spark plugs on a Subaru Ascent?
Maintaining your Subaru Ascent in peak condition requires attention to various components, including the spark plugs. These small but essential parts play a critical role in your vehicle's performance, fuel efficiency, and overall reliability. In this article, we'll explore when you should replace the spark plugs on your Subaru Ascent and why timely replacement is crucial.
What Do Spark Plugs Do?
Spark plugs are responsible for igniting the air-fuel mixture in your engine's cylinders, creating the combustion needed to power your vehicle. Over time, spark plugs can wear out due to constant exposure to high temperatures and pressure, leading to reduced performance and potential engine issues.
Recommended Replacement Interval for Subaru Ascent Spark Plugs
Subaru recommends replacing the spark plugs on the Ascent every 60,000 miles. However, this interval may vary depending on your driving habits and conditions. For example, frequent stop-and-go driving, towing heavy loads, or driving in extreme temperatures can cause spark plugs to wear out faster.
Signs That Your Spark Plugs May Need Replacement
Even if you haven't reached the recommended mileage, there are several signs that your spark plugs may need attention. Watch out for the following symptoms:
- Engine Misfires: If your engine is misfiring or running rough, worn spark plugs could be the culprit.
- Reduced Fuel Efficiency: A drop in gas mileage may indicate that your spark plugs are no longer firing efficiently.
- Difficulty Starting the Engine: Faulty spark plugs can make it harder to start your vehicle, especially in cold weather.
- Check Engine Light: A malfunctioning spark plug can trigger the check engine light on your dashboard.
- Poor Acceleration: If your vehicle feels sluggish or unresponsive, it might be time to inspect the spark plugs.
Addressing these issues promptly can prevent further damage to your engine and ensure your Subaru Ascent continues to perform at its best.
Steps to Replace Spark Plugs
If you're comfortable with DIY car maintenance, replacing spark plugs can be a manageable task. Here's a general guide:
- Gather the necessary tools, including a spark plug socket, ratchet, and torque wrench.
- Locate the spark plugs in your engine. Refer to your owner's manual for specific instructions.
- Carefully remove the old spark plugs using the spark plug socket and ratchet.
- Inspect the old spark plugs for signs of wear or damage, such as carbon buildup or a worn electrode.
- Install the new spark plugs, ensuring they are properly gapped according to the manufacturer's specifications.
- Tighten the spark plugs to the recommended torque using a torque wrench.
- Reconnect any components you removed to access the spark plugs.
While replacing spark plugs is a straightforward process, it's always a good idea to consult a professional mechanic if you're unsure or lack the necessary tools.
Why Timely Spark Plug Replacement Matters
Replacing your spark plugs at the recommended intervals ensures optimal engine performance, improved fuel efficiency, and reduced emissions. Neglecting this maintenance task can lead to costly repairs down the road, such as damage to the ignition coils or catalytic converter.
Conclusion
Keeping your Subaru Ascent's spark plugs in good condition is essential for maintaining its performance and reliability. By following the recommended replacement schedule and addressing any signs of wear promptly, you can enjoy a smooth and efficient driving experience. If you're unsure about the condition of your spark plugs or need assistance, don't hesitate to reach out to a trusted auto repair shop like Kevin's Autos for expert advice and service.
Frequently Asked Questions
What is the Subaru Ascent 90k mile service?
90,000-Mile Service
It includes checking several items such as the tires, brakes, battery, and fluid levels. The timing belt may also need to be replaced at this time. A technician will also replace your power steering fluid, spark plugs, and hoses.
How long do Subaru OEM spark plugs last?
While the answer depends on the make and model of your vehicle, as a good example, the newest Subaru BOXER® engines are built with spark plugs made of ultra resilient materials, such as platinum. This allows them to be replaced about every 60,000 miles.
How do I know if my Subaru spark plugs are bad?
One of the first signs of spark plug wear is trouble starting your Subaru. If the engine cranks longer than usual before starting or if you experience intermittent starting issues, it's time to inspect your spark plugs.
How much does it cost to replace spark plugs in a Subaru Ascent?
$364 - $428. “Dealer” refers to service centers that specialize in one or two makes and sell those vehicles. As a franchise dealer: They use top-quality manufacturer-recommended or “official” parts.
How do I know if my spark plugs need changing?
5 Signs You Need New Spark Plugs
- Engine Misfires. A misfiring engine is a big sign that one or more of your spark plugs are not firing properly.
- Poor Gas Mileage. When spark plugs are working correctly, they burn fuel efficiently in your engine.
- Trouble Starting.
- Slow Acceleration.
- Rough Idling.
How long do OEM Subaru spark plugs last?
Experts generally recommend replacing spark plugs every 30,000 miles for the best results. If one of your Subaru spark plugs gets out of whack, it can cause a reduction in gas mileage and engine problems later on.
How often should I change the spark plugs on my Subaru Ascent?
Every 60,000 Miles
Subaru Ascent Maintenance Schedule Every 60,000 Miles or 60 Months: Recurring 6,000-mile Subaru Ascent service interval. Spark plug replacement.
When should I replace my Subaru spark plugs?
To extend the life of your Subaru spark plugs and ensure your engine runs smoothly, regular maintenance is key. This includes following Subaru's recommended service intervals—typically every 60,000 miles for standard replacements.
What is the signs of changing spark plugs?
Rough Idling. Keep your ears open for any rattling, pinging or knocking sounds—these are another bad spark plug symptom. If your vehicle's engine is making any unusual sounds or vibrations while idling, your vehicle's spark plugs may not be functioning properly to keep the engine running smooth.
Is it easy to replace Subaru spark plugs?
Replacing spark plugs is something you can do at home within an hour as long as you have the following tools: Appropriately sized spark plug socket. 8-10mm sockets. Ratchet and extensions.
