* Under the dash: This is a frequent location for flasher relays. You'll likely find it in the fuse box area under the dashboard. This fuse box might be accessible from the driver's side or require partial dashboard disassembly.
* In the fuse box under the hood: Some Ford F-350 models place the flasher relay in the under-hood fuse box. This is generally easier to access than the under-dash location.
To find it:
1. Consult your owner's manual: This is the best place to start. The manual will show you the location of the fuse box(es) and may even have a diagram indicating the flasher relay.
2. Look for a fuse box diagram: The inside of the fuse box cover often has a diagram showing the location and function of each fuse and relay.
3. Identify the relay: The flasher relay is usually a small square or rectangular component. It often has markings indicating its function (turn signals, hazard lights).
If you can't find it using these methods, a qualified mechanic or an auto parts store employee should be able to help you locate it based on your truck's year and model. Providing the year and model of your F-350 would significantly help in providing a more precise answer.
