Ford EXP Horn Replacement Guide for 1986-1988 Models
A silent horn is a safety issue; this guide covers the common causes and solutions for your 1986-1988 Ford EXP.
- Always check the horn fuse and relay first; this is the most common and cheapest fix.
- A clicking sound when you press the horn button usually means the relay is working and the horn unit itself or its wiring is the problem.
- This is a simple DIY repair for most owners, typically requiring only basic tools and less than an hour of work.
- New OEM parts are not available; a quality aftermarket brand like Standard Ignition is your best option for a new part.
Is Your Ford EXP Horn Not Working?
A non-functioning horn on your 1986, 1987, or 1988 Ford EXP is more than an inconvenience—it's a safety hazard that can cause your vehicle to fail a safety inspection. The problem often isn't the horn itself, but a simpler electrical issue. Before buying parts, it's important to do some basic troubleshooting.
Diagnosing the Problem: Common Symptoms
Understanding the symptoms can help you find the root cause quickly and save money.
- No Sound at All: If you press the horn button and hear nothing, the most likely culprits are a blown fuse, a bad horn relay, or a faulty switch in the steering wheel. The first and easiest step is to check the fuse box.
- A Single Click is Heard: If you hear a clicking noise from the engine bay when you press the horn, it usually means the fuse and relay are working. This points to a problem with the horn unit itself, the wiring to the horn, or a bad ground connection.
- Weak or Muffled Sound: A horn that sounds quiet or strange may have water inside it, which is common given its location behind the grille. It can also be caused by corroded electrical connectors or a poor ground that isn't allowing full power to reach the horn.
Pro Tip: Check the Fuse First!
The most common reason for a horn to stop working is a blown fuse. This is the cheapest and easiest part to replace. Check your owner's manual to locate the fuse box and the specific fuse for the horn. If a new fuse blows immediately, you have a short circuit that needs further diagnosis.
Choosing the Right Aftermarket Horn
For a vehicle like the 1986-1988 EXP, finding new original equipment (OEM) parts from Ford is highly unlikely. The good news is that aftermarket parts are a reliable and affordable solution. Since the EXP is based on the Ford Escort, parts listed for the Escort of the same era are often interchangeable.
- Standard Ignition: This brand is a well-known aftermarket manufacturer. Their parts are produced in quality-certified facilities (TS16949 and ISO9001) and are designed to be a direct-fit replacement for the original. They offer a dependable option for keeping your EXP on the road safely.
Estimated Cost of Replacement
The cost to replace your horn can vary. The part itself is affordable, but labor costs can add up if you have a shop do the work. This is a very DIY-friendly repair for most owners.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Horn | $39.10 - $57.46 |
| Shop Labor | $50 - $115 |
| New OEM Horn | Not Generally Available |
Known Issues, Recalls, and Service Bulletins
There are no known recalls or technical service bulletins (TSBs) from the NHTSA related to the horn for the 1986-1988 Ford EXP. Any issues you encounter are likely due to the age of the components rather than a manufacturing defect.
Frequently Asked Questions (FAQ)
Where is the horn located on a 1986-1988 Ford EXP?
The horn is typically located in the front of the engine bay, behind the grille, and often near one of the headlights. On the similar Ford Escort, it is sometimes found behind the passenger-side headlight. You may need to look from underneath the front bumper to see it.
Is replacing the horn a difficult job?
No, for most people with basic hand tools, this is a very feasible DIY job. It usually involves disconnecting the battery, unplugging one electrical connector, and removing a single bolt. The most challenging part is simply accessing the horn's location.
Do I need a high-tone or low-tone horn?
Many Fords from this era used two horns—one high tone and one low tone—to work together. You can replace just the one that has failed. If you are unsure which one you need, you can often find markings on the original horn or test them individually.
My horn works with my key fob but not the steering wheel. What's wrong?
This scenario indicates the horn unit, relay, and fuse are likely fine. The problem is in the steering column, most likely a worn-out horn switch or a failing clockspring.
Technical Specifications
OEM Part Numbers: FO3Z-13832-B
12V System, High or Low Tone
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Ford EXP: