However, here's a general guideline and where to start looking:
* Inertia Switch: This is usually located under the dash, often near the fuse box or on the passenger side floorboard, sometimes even under the carpet. It's usually a small, square or rectangular box with a button on top. It's designed to cut power to the fuel pump in a collision.
* Fuel Pump Relay: This is more likely to be in the under-hood fuse box (power distribution box). It won't be labeled "Fuel Pump Relay" directly. You'll need to consult a wiring diagram (online or from a repair manual) to identify the relay specifically controlling the fuel pump circuit. This diagram will help you locate it within the fuse box based on its circuit number and possibly its shape or color. Many 80s Ford vehicles used a common layout, so a general wiring diagram for a 1986 Bronco might help.
To find the specific locations:
1. Consult a Repair Manual: A Haynes or Chilton repair manual for your specific 1986 Ford Bronco will be your best resource. These manuals have diagrams showing the exact locations of relays and switches.
2. Online Wiring Diagrams: Search online for "1986 Ford Bronco 302 wiring diagram." Several websites might offer free or paid access to these diagrams. Be sure the diagram specifically mentions your model year and engine.
3. Visual Inspection: Once you have a general idea, carefully inspect the areas mentioned above. Look for relays that are similar in size and shape to fuel pump relays and check markings on the relays themselves. Also, look for the inertia switch using the description above.
Important Note: Always disconnect the negative battery terminal before working on any electrical components to prevent accidental shorts or injury.
