Tools You'll Need:
* Socket wrench set (likely need a 10mm and possibly an 8mm)
* Ratchet and extensions
* Possibly a small pry bar or flathead screwdriver (to help disconnect connectors)
* New ignition coil(s) - Make sure you get the correct one for your engine size.
* Gloves (recommended)
* Shop rags or paper towels
General Steps (for both engine types):
1. Locate the ignition coil(s): The coils are usually located on top of the engine, near the spark plugs. The 3.0L V6 will have multiple coils (one per cylinder or a pair for each bank of cylinders), while the 2.0L 4-cylinder will have fewer. Consult your repair manual or online diagrams to precisely locate them for your specific engine.
2. Disconnect the battery negative terminal: This is crucial for safety.
3. Disconnect the coil connector(s): Carefully unplug the electrical connector(s) from the top of the coil(s). Sometimes a slight tug is all it takes, but you may need a small pry tool to carefully separate the connector from the coil. Take note of how it's connected for reassembly.
4. Remove the coil mounting bolts: Use your socket wrench to remove the bolts holding the coil(s) to the engine. The number of bolts will vary depending on your engine and coil design.
5. Remove the coil(s): Gently lift the coil(s) off the spark plug(s). Be careful not to damage the spark plug boots (the rubber connectors on the spark plugs).
6. Install the new coil(s): Carefully align the new coil(s) with the spark plug(s) and install them in the reverse order of removal. Make sure they're seated properly.
7. Tighten the mounting bolts: Secure the new coil(s) with the mounting bolts, tightening them to the manufacturer's specified torque (check your repair manual).
8. Reconnect the coil connector(s): Carefully plug the electrical connectors back onto the new coil(s), ensuring a secure connection.
9. Reconnect the battery negative terminal: Once everything is reconnected, reattach the negative battery terminal.
10. Start the engine: Start your Escape and listen for any unusual noises or misfires. If the problem persists, double-check your work or consult a mechanic.
Important Considerations:
* Repair Manual: A repair manual specific to your 2002 Ford Escape is highly recommended. It will provide detailed diagrams, torque specifications, and other essential information. You can find these online or at auto parts stores.
* Safety: Always disconnect the battery negative terminal before working on the ignition system. The ignition system operates at high voltage, posing a risk of electric shock.
* Spark Plugs: While you're working in this area, consider inspecting your spark plugs. If they are worn or damaged, replacing them along with the ignition coil is a good idea.
If you are not comfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic. Improperly installed ignition coils can cause further damage to your engine.
