How to remove spark plugs on Toyota Yaris?
Removing spark plugs from your Toyota Yaris is a straightforward task that can enhance your vehicle's performance and fuel efficiency. Whether you're replacing old spark plugs or performing routine maintenance, this guide will walk you through the necessary steps to do it safely and effectively.
Tools and Materials Needed
Before you begin, gather the following tools and materials:
- Socket wrench set
- Spark plug socket (usually 5/8 inch)
- Torque wrench
- Anti-seize compound (optional)
- New spark plugs
- Compressed air (optional)
Step-by-Step Guide
Follow these steps to remove the spark plugs from your Toyota Yaris:
1. Prepare the Vehicle
Ensure the engine is cool to avoid burns. Disconnect the negative battery terminal to prevent any electrical issues.
2. Locate the Spark Plugs
The spark plugs are typically located on the top of the engine. You may need to remove any engine covers to access them.
3. Clean the Area
Use compressed air to blow away any debris around the spark plugs. This prevents dirt from entering the combustion chamber when you remove the plugs.
4. Remove the Ignition Coils
If your Yaris has ignition coils, carefully disconnect them by removing the bolts and pulling them straight out. Be gentle to avoid damaging the connectors.
5. Unscrew the Spark Plugs
Using the spark plug socket and ratchet, turn the spark plugs counterclockwise to loosen and remove them. Be cautious not to apply excessive force, as this can damage the threads.
6. Inspect the Old Spark Plugs
Check the condition of the old spark plugs for signs of wear or damage. This can provide insights into your engine's health.
7. Install New Spark Plugs
Before installing the new spark plugs, apply a small amount of anti-seize compound to the threads (if recommended). Carefully screw in the new spark plugs by hand to avoid cross-threading, then tighten them with the torque wrench to the manufacturer's specifications.
8. Reattach Ignition Coils
Once the new spark plugs are in place, reattach the ignition coils and ensure they are securely fastened.
9. Reconnect the Battery
Finally, reconnect the negative battery terminal and start your engine to ensure everything is functioning correctly.
Conclusion
Removing and replacing spark plugs on your Toyota Yaris is a manageable task that can lead to improved engine performance. Regular maintenance, including spark plug replacement, is essential for keeping your vehicle running smoothly. If you encounter any difficulties or are unsure about the process, don't hesitate to consult a professional mechanic.
Frequently Asked Questions
How do I know if my spark plugs need changing?
Here are seven signs that are telling you that you need spark plug replacement on your vehicle.
- Your Vehicle is Difficult to Start.
- Your Engine is Misfiring.
- You Have Poor Fuel Economy.
- Your Engine Idles Rough.
- Your Car Doesn't Accelerate Easily.
- Your Engine is Loud.
- Your “Check Engine” Light Comes On.
How much to replace spark plugs on a Toyota Yaris?
The average cost for a Toyota Yaris Spark Plug Replacement is between $252 and $275.
Will AutoZone change my spark plugs?
But if you're inexperienced and hesitant to try the job yourself, it could be safer to have a repair shop, like AutoZone's Preferred Shops, do it for you. Rather than take a chance on damaging something and adding to the repair cost, it'll get done in a timely fashion by a professional.
How often should I change the spark plugs on my Toyota Yaris?
Spark plugs don't need frequent replacement; they typically last around 80,000 miles and are included as a checklist item on your vehicle's maintenance schedule.
How to change Toyota spark plugs?
How To Replace Your Spark Plugs
- Open the hood.
- Disconnect the battery.
- Remove the engine cover (if there's one).
- Remove the ignition coil(s).
- With the 6” extension and the spark plug socket, remove the spark plug(s).
- Install the new spark plug(s) in the reverse order of removal.
What is the easiest way to remove spark plugs?
Use a proper spark plug socket from a 3/8'' or 1/2'' socket set that you can attach a 24-inch breaker bar to. Plugs that have been in place a long time can seem stuck, but more leverage with an extension bar on your plug wrench will loosen them easily.
Why can't I get my spark plug out?
The carbon can build up around the tip of the spark plug inside the cylinder and will prevent you from removing it. Simply put, the spark plug can become seized. Apart from that, spark plugs can also seize due to corrosion.
Why is my spark plug hard to remove?
The carbon can build up around the tip of the spark plug inside the cylinder and will prevent you from removing it. Simply put, the spark plug can become seized.
How long do Toyota factory spark plugs last?
As a general rule, plugs need replacement after 30,000 miles. The correct replacement time for the plugs in your Toyota model is listed in your car manual. Replacement time can vary, as damaged plugs need to be replaced earlier. If you have long-life plugs, they may only need to be replaced after 120,000 miles.
Do I need a special tool to remove spark plugs?
A special spark plug wrench is best. It has a rubber insert to grab the plug when it is removed. And the rubber part helps to hold the plug when putting in the plug. A regular deep socket will work but the socket desigbed for the job is better.
