1998 Ford Windstar Turn Signal & Parking Light: A One-Year-Only Part
This guide covers the unique, 1998-only turn signal and parking light assembly, including common problems, part numbers, and replacement.
- This part is a 1998-only design; assemblies from 1997 or 1999-2003 Windstars will not fit.
- Symptoms of failure include rapid flashing (hyperflash), a dead bulb, or moisture inside the lens.
- Replacement is simple for DIYers and requires removing the main headlight assembly by pulling two retaining pins.
- Used OEM parts are often more expensive than new aftermarket ones due to the scarcity of this one-year-only part.
Symptoms of a Failing Turn Signal / Parking Light
Failure in the 1998 Windstar's corner light assembly can manifest in several ways, ranging from simple annoyances to safety hazards.
- Rapidly Flashing Turn Signal ("Hyperflash"): This is the most common symptom and almost always means a bulb has burned out. The change in electrical resistance from the failed bulb causes the flasher relay to cycle faster than normal.
- Turn Signal or Parking Light Not Working: If a light is completely out, the cause is typically a burned-out bulb. If a new bulb doesn't fix the issue, the problem may lie with a corroded bulb socket, damaged wiring, or a faulty turn signal switch in the steering column.
- Visible Moisture or Condensation: Water droplets or fogging inside the lens indicate a failed seal. Over time, this moisture will cause corrosion on the bulb socket and reflective surfaces, leading to premature bulb failure and reduced light output.
- Cracked or Hazy Lens: Years of exposure to sunlight and road debris can cause the plastic lens to become cloudy (hazed) or develop small cracks. This diminishes the light's brightness and can eventually allow water to enter the housing.
Vehicle-Specific Issues: The 1998-Only Design
Compatibility Warning: The turn signal/parking light assembly for the 1998 Ford Windstar is a one-year-only part. Assemblies from 1995-1997 models or the redesigned 1999-2003 models will not fit. The shape, mounting points, and electrical connectors are different. When purchasing a replacement, you must verify it is specifically for the 1998 model year.
The 1998 Windstar was a transitional model, featuring a unique front-end design that was only used for a single year before a major redesign for the 1999 model year. This makes finding correct-fitting used parts, especially lighting, more challenging than for other generations.
Known Recalls and Technical Service Bulletins (TSBs)
While there are no recalls specifically for the turn signal assembly itself, there is a relevant lighting-related recall for the 1998 Windstar.
- NHTSA Recall #00V-168: This recall was issued because some vehicles were equipped with Canadian-spec Daytime Running Lights (DRLs) that were brighter than permitted by U.S. standards. The official remedy was for Ford dealers to deactivate the DRL function. While this doesn't directly cause a failure, it's a known factory issue with the front lighting system.
No specific Technical Service Bulletins (TSBs) have been issued for this particular lamp assembly. However, some owners of high-mileage Windstars have reported various electrical issues that can sometimes be traced to water intrusion in the main Battery Junction Box (fuse box) under the hood. If you are experiencing intermittent lighting problems that are not resolved by replacing bulbs, inspecting the BJB for corrosion is a worthwhile diagnostic step.
Buying a Used 1998 Windstar Turn Signal / Parking Light
Given that Ford has discontinued this part, buying a quality used OEM or a new aftermarket unit is your primary option. Used OEM parts often have better fit and durability than cheap aftermarket alternatives, but careful inspection is key.
What to Inspect on a Used Part:
- Check All Mounting Tabs: The plastic tabs used to secure the light to the vehicle are the most common point of failure. Ensure all tabs are present and free of cracks. Even one broken tab can result in a loose fit, vibration, and eventual failure.
- Examine the Lens: Look for a clear, bright lens. Avoid assemblies with heavy hazing, yellowing, or deep scratches, as these reduce light output and are signs of advanced UV degradation. Minor surface haze can sometimes be polished out, but deep crazing or internal cloudiness cannot.
- Look for Signs of Moisture: Check for a dried, white, chalky residue on the inside of the housing or rust on the chrome reflector. This is clear evidence that the housing's seal has failed and it has previously held water.
- Inspect the Bulb Socket: While used parts rarely come with bulbs, inspect the socket where the bulb twists in. Look for any signs of green or white corrosion, or melted plastic, which would indicate a poor electrical connection or water damage.
Cost of a 1998 Ford Windstar Turn Signal / Parking Light
Pricing varies significantly between new aftermarket and used OEM parts, primarily due to the scarcity of the one-year-only design.
| Part Type | Estimated Price Range | Notes |
|---|---|---|
| New OEM | $0 (Discontinued) | This part is no longer available to order new from Ford. |
| New Aftermarket | $15 - $45 | Widely available from various manufacturers. Quality can vary, but they are a cost-effective option. |
| Used OEM | $35 - $90 | Prices are higher than aftermarket due to scarcity. Condition is critical. |
| Shop Labor | $50 - $100 | Replacement is simple and typically takes 0.5 hours of labor. |
Step-by-Step Replacement Guide
Replacing the turn signal assembly is a straightforward job that can be done with basic hand tools. The process involves removing the main headlight assembly to gain access.
- Open the Hood: Secure the hood in the open position.
- Remove Headlight Retainers: Locate the two long, metal retaining pins or clips that hold the top of the headlight assembly in place. They are visible from above, running vertically behind the headlight. Pull them straight up and out. Pliers may be needed if they are stuck.
- Remove the Headlight Assembly: With the retainers removed, carefully pull the entire headlight assembly straight forward, away from the vehicle. It may require some wiggling to free it from the body.
- Disconnect the Headlight: Unplug the electrical connector from the back of the headlight bulb and set the assembly aside.
- Access the Turn Signal Assembly: With the headlight removed, you now have clear access to the turn signal/parking light assembly. It is typically held in place by one or two screws or plastic clips. Remove them.
- Remove the Old Assembly: Pull the old turn signal assembly out. Twist the bulb socket counter-clockwise about a quarter turn and pull it out of the housing.
- Install the New Assembly: Transfer the bulb and socket to the new housing. Insert the new assembly into the vehicle and secure it with its screws or clips. Reconnect the headlight, slide it back into place, and re-insert the two retaining pins.
- Test the Lights: Before closing the hood, test the parking lights and both turn signals to ensure everything is working correctly.
Technical Specifications & Part Numbers
| Specification | Value |
|---|---|
| Part Function | Front Turn Signal / Parking Light Assembly |
| Bulb Type | 3157A or 3157NA (Amber, Dual-Filament) |
| OEM Part Number (Left/Driver) | F78Z-15A201-AB |
| OEM Part Number (Right/Passenger) | F78Z-15A201-AA |
| Related Headlight Part Number (NOT this part) | F78Z-13008-AB (Right), F78Z-13008-BA (Left) |
| Trim Level Fitment | Fits all trims (Base, GL, LX, Limited) |
Frequently Asked Questions (FAQ)
Why is my turn signal blinking really fast?
This is called "hyperflash" and it is the vehicle's way of telling you that a turn signal bulb has burned out on that side of the vehicle. Replace the burned-out bulb in either the front or rear turn signal to resolve the issue.
Will a corner light from a 1999 Windstar fit my 1998?
No. The 1998 model year has a unique front fascia and its lighting components are not interchangeable with the 1999-2003 generation or the earlier 1995-1997 generation. You must use a part specifically listed for the 1998 model year.
How can I fix a foggy or moisture-filled lens?
The only permanent fix for a lens with moisture inside is to replace the entire assembly. The fog indicates that the factory seal between the lens and the housing has failed. While you can try removing the assembly, drying it out, and applying a new layer of silicone sealant around the seam, this is often a temporary solution.
Are the driver and passenger side lights the same part?
No, they are not interchangeable. They are mirror images of each other and have unique part numbers for the left (driver) and right (passenger) sides.
Technical Specifications
OEM Part Numbers: F78Z-15A201-AB (Left) F78Z-15A201-AA (Right)
Bulb Type: 3157A / 3157NA (Amber)
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 Windstar:
- 🛍️ Shop This Part
- Symptoms of a Failing Turn Signal / Parking Light
- Vehicle-Specific Issues: The 1998-Only Design
- Known Recalls and Technical Service Bulletins (TSBs)
- Buying a Used 1998 Windstar Turn Signal / Parking Light
- What to Inspect on a Used Part:
- Cost of a 1998 Ford Windstar Turn Signal / Parking Light
- Step-by-Step Replacement Guide
- Technical Specifications & Part Numbers
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off