Tools you'll likely need:
* Socket wrench set: You'll need sockets of various sizes, likely including a 10mm and possibly a 13mm.
* Wrench: Possibly needed for stubborn bolts or connectors.
* Screwdriver (possibly): May be needed depending on the design of your ignition coil mounting.
* New ignition coil: Ensure you get the correct replacement part for your 1985 Pontiac Fiero GT's 2.8L V6 engine.
* Gloves: Protect your hands from grease and potential cuts.
* Safety glasses: Protect your eyes from flying debris.
Steps:
1. Locate the Ignition Coil: The ignition coil is typically located on the passenger side of the engine compartment, near the distributor (if your Fiero has one; some models may have a different ignition system). It's usually a fairly large, black rectangular unit.
2. Disconnect the Ignition Coil Wire(s): Carefully disconnect the high-voltage wire(s) leading from the coil to the distributor (or other ignition components). There will usually be a connector or a clamp securing the wire; be cautious to avoid any accidental sparks.
3. Disconnect the Electrical Connector(s): There will be one or more electrical connectors supplying power to the coil. Carefully disconnect these connectors.
4. Remove the Coil Mounting Bolts: The coil is usually held in place by one or two bolts. Use the appropriate socket to remove these bolts.
5. Remove the Ignition Coil: Once the bolts are removed, carefully lift the coil out of its mounting location. Take note of its orientation if there's anything unusual about its mounting.
6. Install the New Ignition Coil: Carefully align the new ignition coil with its mounting location. Make sure it sits correctly and securely.
7. Reconnect the Mounting Bolts: Tighten the mounting bolts to the manufacturer's specified torque. (This information might be available in your owner's manual or online repair manuals.)
8. Reconnect the Electrical Connectors: Securely reconnect the electrical connectors to the new coil.
9. Reconnect the Ignition Coil Wire(s): Carefully reconnect the high-voltage wire(s) to the new coil, ensuring a secure connection.
10. Reconnect the Negative Battery Terminal: Reconnect the negative battery terminal.
11. Test the Ignition System: Start the engine to verify that the new coil is working correctly. Listen for smooth engine operation and check for any misfires or rough running.
Important Considerations:
* Consult a Repair Manual: A detailed repair manual specific to your 1985 Pontiac Fiero GT is highly recommended. These manuals provide diagrams, torque specifications, and step-by-step instructions specific to your vehicle's model. Haynes and Chilton are popular brands.
* Safety First: Always prioritize safety. Work in a well-ventilated area, and use appropriate safety equipment.
* Spark Danger: High voltage is present in the ignition system. Exercise extreme caution when working with the high-voltage wires to avoid electric shock.
If you are uncomfortable performing this repair yourself, it's always best to take your vehicle to a qualified mechanic. This guide is for informational purposes only and should not be considered a substitute for professional automotive repair advice.
