Here's what's involved, but proceed with caution and at your own risk:
1. Safety First: Make sure the vehicle is on a level surface, the engine is off, and the emergency brake is disengaged. Chock the front wheels.
2. Remove the Rear Wheels: This will require a lug wrench and jack. Properly support the vehicle.
3. Access the Parking Brake Mechanism: You'll need to remove the drum brake. This may involve removing some retaining clips or screws depending on your specific Fiero's setup. Refer to a repair manual for your specific year and model for precise instructions. The parking brake mechanism is integrated into the rear drum brakes.
4. Adjust the Brake Shoes: Once the drum is off, you'll see the brake shoes. There's usually an adjuster located on the backing plate, often a star wheel. The star wheel is used to spread the brake shoes outward. This needs to be done carefully and evenly to ensure even braking pressure. A repair manual is crucial here to properly identify the adjuster and learn the correct method of adjusting. Turning the adjuster the wrong way will make the adjustment worse, or damage the adjuster.
5. Test and Readjust: Reassemble the drum brake, replace the wheel, and test the parking brake. It should hold the car firmly on a slight incline. If not, repeat the adjustment process, making small adjustments until the desired hold is achieved.
6. Reassemble and Test: If the adjustment has been correctly done, carefully reassemble everything. Always double-check that everything is in place before driving. Finally, thoroughly test the parking brake on a safe, inclined surface to ensure its effectiveness.
Crucially Important Information:
* Repair Manual: A factory repair manual for a 1984 Pontiac Fiero is absolutely necessary. It will provide detailed diagrams and instructions specific to your vehicle. Attempting this without one is highly discouraged.
* Tools: You'll need various tools including a jack, jack stands, lug wrench, socket set, screwdrivers (likely Phillips and flathead), and potentially some specialized tools for brake work.
* Safety: Working on brakes requires caution. If you're not comfortable with this type of repair, it's highly recommended that you take your Fiero to a qualified mechanic. Improper brake adjustment can lead to brake failure and serious accidents.
Improper adjustment can lead to uneven brake wear, reduced braking performance, or even complete brake failure. If you are uncomfortable working on your brakes, take your car to a qualified mechanic. This is not a job for a beginner.