Quick summary
- This tool helps you adjust the gap between the electrodes of the spark plug to the manufacturer’s specifications.
- Use a compressed air hose or a brush to remove any dirt or debris from the spark plug wells.
- Carefully reconnect the wires or coils to the spark plugs in the same order they were removed.
Are you ready to tackle a simple yet crucial car maintenance task? Replacing spark plugs on your Mitsubishi Mirage is a straightforward procedure that can be done by any DIY enthusiast with basic tools. This guide will walk you through the process step-by-step, ensuring a smooth and successful spark plug change.
Why Change Spark Plugs?
Spark plugs are essential components in your car’s ignition system. They generate the spark that ignites the air-fuel mixture in the combustion chamber, powering your engine. Over time, spark plugs wear out, leading to decreased engine performance, rough idling, and even misfires. Replacing worn-out spark plugs is crucial for maintaining optimal engine health and fuel efficiency.
Gathering the Necessary Tools and Materials
Before diving into the process, gather the following tools and materials:
- New spark plugs: Ensure you purchase the correct type and model of spark plugs for your Mitsubishi Mirage. Consult your owner’s manual or a reliable online parts catalog for the recommended specifications.
- Socket wrench: A 14mm socket wrench is typically required for removing and installing spark plugs.
- Spark plug gap tool: This tool helps you adjust the gap between the electrodes of the spark plug to the manufacturer’s specifications.
- Torque wrench: A torque wrench ensures proper tightening of the spark plugs to prevent damage to the threads.
- Gloves: Protect your hands from dirt and potential burns.
- Safety glasses: Shield your eyes from debris.
- Rag or shop towel: Use this to clean up any spills or debris.
Preparing Your Mitsubishi Mirage
1. Park your car on a level surface: Ensure the parking brake is engaged and the car is in “Park” or “Neutral.”
2. Disconnect the negative battery terminal: This prevents accidental electrical shocks during the process.
3. Locate the spark plugs: Open the hood and locate the spark plug wires or coils. They are typically attached to the top of the spark plugs.
Removing the Old Spark Plugs
1. Disconnect the spark plug wires or coils: Gently pull the wires or coils off the spark plugs. Take note of the order in which they are connected, as you’ll need to reconnect them in the same order.
2. Remove the spark plugs: Use the socket wrench to loosen and remove the spark plugs. Be careful not to cross-thread the socket when removing the plugs.
3. Inspect the old spark plugs: Examine the condition of the old spark plugs. They should have a clean, light-colored electrode. If they are heavily worn, fouled, or have excessive electrode wear, it’s a good sign they need replacement.
Installing the New Spark Plugs
1. Clean the spark plug wells: Use a compressed air hose or a brush to remove any dirt or debris from the spark plug wells.
2. Install the new spark plugs: Carefully thread the new spark plugs into the wells, ensuring they are seated properly. Do not overtighten them.
3. Tighten the spark plugs with a torque wrench: Refer to your owner’s manual for the recommended torque specifications for your Mitsubishi Mirage’s spark plugs. Overtightening can damage the threads, while undertightening can cause leaks.
4. Connect the spark plug wires or coils: Carefully reconnect the wires or coils to the spark plugs in the same order they were removed.
Reconnecting the Battery and Finishing Up
1. Reconnect the negative battery terminal: Ensure the connection is secure.
2. Start the engine: Check for any misfires or unusual noises. If everything seems fine, let the engine run for a few minutes to allow the new spark plugs to warm up.
3. Dispose of the old spark plugs properly: Used spark plugs should be disposed of responsibly, as they contain hazardous materials.
Final Thoughts: Mastering the Art of Spark Plug Replacement
Changing spark plugs on your Mitsubishi Mirage is a simple task that can save you money and enhance your car’s performance. By following these steps and taking your time, you can confidently tackle this DIY project. Remember to consult your owner’s manual for specific instructions and torque specifications for your model year.
Frequently Asked Questions
Q: How often should I change my spark plugs?
A: Most spark plugs are designed to last between 30,000 and 100,000 miles. However, factors like driving conditions and fuel quality can affect their lifespan. Consult your owner’s manual for the recommended replacement interval for your Mitsubishi Mirage.
Q: What are the signs of worn-out spark plugs?
A: Common signs include:
- Rough idling: The engine may shake or vibrate excessively at idle.
- Decreased fuel efficiency: You may notice a drop in your car’s gas mileage.
- Misfires: The engine may misfire, causing a jerking or sputtering sensation.
- Hard starting: The engine may take longer to start or require multiple attempts.
Q: Can I use any type of spark plug for my Mitsubishi Mirage?
A: No, it’s crucial to use the correct type and model of spark plugs specified for your vehicle. Using the wrong type can lead to engine damage and performance issues. Consult your owner’s manual or a reliable parts catalog for the recommended spark plug specifications.
Q: Is it safe to change spark plugs myself?
A: Yes, changing spark plugs is generally a safe procedure if you follow the proper safety precautions and have the necessary tools. However, if you’re unsure or uncomfortable performing the task, it’s always best to consult a qualified mechanic.