To find it, you'll need to do some detective work:
1. Consult a wiring diagram: A wiring diagram specific to your 1989 Ford Tempo is your best bet. You can find these online (sometimes for free, sometimes for a fee) through sites specializing in automotive repair manuals or by searching for a "1989 Ford Tempo wiring diagram" with specific keywords like "blower motor".
2. Trace the blower motor wires: Start at the blower motor itself and follow the wires back. They will lead to a relay (it will be a small square or rectangular component with multiple terminals).
3. Check common relay locations: While not guaranteed, common spots to check include:
* Under the dash: Look behind the glove compartment, under the steering column, and in other areas near the climate control system.
* In the fuse box: Though less likely to be directly *in* the fuse box, it *might* be mounted on or near it. This is especially true for larger relays.
* In the engine compartment fuse box (less likely): Some relays are located here, but the blower motor relay is more commonly placed inside the car.
Important Considerations:
* Multiple Relays: Some systems might use multiple relays for the blower motor, particularly for different speeds.
* Integrated Circuits: The relay function might be integrated into a larger control module instead of being a separate component.
Finding the relay on a 1989 Tempo will likely require some patience and persistence. Using a wiring diagram dramatically improves your chances of success.
