* Under the hood in the power distribution box (fuse box): This is the most common location. The power distribution box is usually located near the battery, often on the driver's side fender. Look for a relay labeled "EEC," "PCM," or something similar. The relay may be integrated into a larger module.
* Inside the cab, under the dash: Less common, but possible. This would typically be near other relays and fuses.
To find it definitively:
1. Consult your owner's manual: The best place to start is your owner's manual. It should have a diagram of the fuse and relay boxes, showing the location and function of each relay.
2. Use a wiring diagram: A wiring diagram specific to your 1995 Ford E-350's engine will show you the location of the EEC relay. You can often find these diagrams online through forums dedicated to Ford trucks or by purchasing a repair manual.
3. Look for a relay that matches the description: If you can't find a label, look for a relay that is of similar size and type to other relays associated with engine control.
Important Note: Before working with any electrical components, disconnect the negative terminal of your battery to prevent accidental short circuits. Be careful not to mix up relays. If you're unsure, it's best to seek help from a qualified mechanic.
