1996 Ford Windstar Fuel Pump Relay Location: The Complete Guide to Finding, Testing, and Replacing It

The bottom line: On a 1996 Ford Windstar, the fuel pump relay is not a standalone relay you can swap out individually. It is built into the Constant Control Relay Module (CCRM), a black box located in front of the battery, behind the driver side headlight. The fuel pump fuse is fuse "N" in the engine compartment power distribution box.

If your 1996 Windstar cranks but won't start, stalls unexpectedly, or blows the fuel pump fuse when turning left, the CCRM is the most likely culprit. This guide walks you through exactly where to find it, how to test it, and what to do when it fails.

Understanding the Fuel Pump Relay on a 1996 Ford Windstar

Unlike many vehicles where you can pull out a small plastic relay and swap it in seconds, the 1996 Ford Windstar uses an integrated design. The fuel pump relay lives inside the Constant Control Relay Module (CCRM).

The CCRM is a sealed module that contains four relays in one unit:

  • Fuel pump relay
  • High-speed cooling fan relay
  • Low-speed cooling fan relay
  • A/C compressor relay

The PCM (Powertrain Control Module) sends signals to the CCRM, which then activates the appropriate relay. This means if your fuel pump stops working, you cannot simply replace the fuel pump relay alone. You must replace the entire CCRM module.

1996 Ford Windstar Fuel Pump Relay Location: Step-by-Step

Finding the CCRM on your 1996 Windstar is straightforward. Here is exactly where to look:

1. Open the hood and look in front of the battery. The CCRM is mounted on the radiator support, just forward of the battery.

2. Look behind the driver side headlight. The module sits low, near the front of the vehicle. If you look down from above, you will barely see it behind the headlight assembly.

3. Get a better view from underneath. If you look up from under the car, the CCRM is positioned above and just forward of the radiator drain valve.

4. Identify the module. The CCRM is a black plastic box, approximately 4 inches by 3 inches, with a single large wiring harness plugging into it. The Ford part number for the original unit is 12B577.

5. The fuel pump fuse is separate. The fuel pump fuse for the 1996 Windstar is fuse "N" in the engine compartment power distribution box (the main fuse box near the battery).

Symptoms of a Bad CCRM (Fuel Pump Relay)

When the CCRM fails, it can cause a variety of problems. The most common symptoms include:

  • Engine cranks but will not start. This is the classic symptom. You turn the key, the starter motor spins the engine, but it never fires up because the fuel pump never receives power.

  • No fuel pump prime sound. When you turn the ignition key to the "ON" position (before cranking), you should hear the fuel pump buzz for 1-2 seconds. If you hear nothing, the relay or pump is not getting power.

  • Stalling while driving. The engine may start and run fine, then suddenly die while you are driving. This can happen if the relay contacts are failing intermittently.

  • Blowing the fuel pump fuse when turning left. This is a known issue on the 1996 Windstar. Some owners report that the fuse blows specifically when turning left, which points to a short in the wiring between the CCRM and the fuel pump.

  • Radiator cooling fans not working properly. Since the CCRM also controls the cooling fans, a failing module may cause the fans to run constantly or not at all.

  • Check Engine Light may not come on. The fuel pump circuit is not monitored during start-up, so a bad CCRM often does not trigger a Check Engine Light.

How to Test the 1996 Windstar Fuel Pump Relay (CCRM)

Before you buy a new CCRM, you should confirm that the module is actually the problem. Here is a simple testing procedure:

Step 1: Check the fuel pump fuse first. Locate fuse "N" in the engine compartment fuse box. Pull it out and inspect it. If the fuse is blown, replace it with a 20-amp fuse and see if the pump works. If the fuse blows again immediately or when you turn left, you have a short circuit.

Step 2: Listen for the relay click. Have a helper turn the ignition key to the "ON" position while you place your hand on the CCRM. You should feel a click as the fuel pump relay energizes. If you feel nothing, the relay is not engaging.

Step 3: Check for power at the inertia switch. The fuel pump circuit runs from the CCRM, through the inertia switch (located behind the rear passenger side panel, near the jack storage area), and then to the fuel pump. Use a multimeter to check for 12 volts at the inertia switch when the key is in the "ON" position. If you have power at the inertia switch, the CCRM is working and the problem is further downstream. If you have no power, the CCRM or its wiring is the issue.

Step 4: Test the fuel pump directly. If you suspect the pump itself is bad, you can apply 12 volts directly to the fuel pump connector at the tank. If the pump runs, the pump is good and the issue is upstream.

Replacing the CCRM on a 1996 Ford Windstar

Replacing the CCRM is a simple job that takes about 15 minutes. Here is what you need to know:

Part numbers: The original Ford part number for the 1996 Windstar CCRM is 12B577. Updated versions with improved relays are available. The newer units have better sealing against moisture, which is a common cause of failure.

Where to buy: You can purchase the CCRM from Ford dealerships, online parts retailers, or salvage yards. Expect to pay between $75 and $150 for a new unit.

Replacement steps:

  1. Disconnect the negative battery terminal. This is essential for safety.

  2. Locate the CCRM. As described above, it is in front of the battery, behind the driver side headlight.

  3. Unplug the wiring harness. The CCRM has a single large connector. Press the release tab and pull the connector straight out.

  4. Remove the mounting bolts. The module is held in place by two or three small bolts or screws. Remove them with a socket or screwdriver.

  5. Install the new CCRM. Position the new module in the same location, secure it with the bolts, and plug in the wiring harness.

  6. Reconnect the battery. Test the system by turning the ignition to "ON" and listening for the fuel pump to prime. Start the engine and verify everything works.

Common Wiring Issues That Mimic a Bad Relay

Before you spend money on a new CCRM, check for these common wiring problems on the 1996 Windstar:

1. Short circuit in the fuel pump wiring. Several owners have reported that the fuel pump fuse blows when turning left. This is caused by a wire that rubs through its insulation. The wire runs from the firewall, under the driver seat, and back to the inertia switch. If the wire insulation wears through, it contacts the metal floor and shorts out when the vehicle leans left.

2. Faulty inertia switch. The inertia switch is a safety device that cuts power to the fuel pump in a crash. It is located behind the rear passenger side panel, near the jack. Sometimes the switch trips accidentally or fails internally. Press the reset button on top of the switch to see if that restores power.

3. Corroded or loose connections. The wiring connector at the fuel pump and the connector at the CCRM can develop corrosion over time. Unplug and reconnect these connectors to clean the contacts.

4. Damaged wiring harness. The fuel pump wiring runs along the underbody and can be damaged by road debris or rust. Inspect the wiring for cuts, abrasions, or melted insulation.

Why You Should Buy a KEMSO Fuel Pump for Your 1996 Ford Windstar

If you have diagnosed the problem and determined that your fuel pump itself needs replacement, do not settle for a generic part. Install a KEMSO fuel pump for a direct fit, high-performance solution that will outlast the original equipment.

KEMSO offers OEM replacement fuel pumps that are designed specifically for vehicles like the 1996 Ford Windstar. Every pump is built to deliver consistent flow and pressure under demanding conditions. Whether you are driving your Windstar as a daily driver, a family hauler, or a work van, a KEMSO pump ensures reliable fuel delivery.

What sets KEMSO apart from other aftermarket brands:

  • Lifetime warranty. Every KEMSO fuel pump comes with a lifetime warranty that covers manufacturing defects and premature failure. You install it once and never worry about replacing it again.

  • Direct fitment. KEMSO pumps are designed as direct OEM replacements. The kit includes everything you need for a complete installation: the fuel pump, gradient density fuel strainer, flex hose, tank seal, Viton grommet, and wiring connector. This means no cutting, splicing, or modifying your vehicle's wiring.

  • High performance. KEMSO pumps deliver over 20% more flow at 43 psi compared to stock OEM pumps. They support up to 200 liters per hour, making them ideal for both stock engines and performance upgrades.

  • Ethanol compatible. The internal components are designed to resist ethanol and methanol blends, making them suitable for modern fuels.

  • Cold-start advantage. KEMSO pumps include a cold-start algorithm that pre-primes the pump for longer than standard units. In testing at -30°F, KEMSO pumps reduced fuel pressure loss to just 4%, compared to 12% for some OEM pumps. This is a real advantage for owners in cold climates.

  • Proven reliability. In a 2023 case study, a fleet management company replaced 42 OEM pumps with KEMSO units. After 18 months and 1.2 million collective miles, only two required warranty claims, giving a 95% reliability rate that matches OEM failure statistics.

  • Budget-friendly pricing. KEMSO pumps typically cost $80-$130, compared to $220-$380 for OEM parts. This savings can be significant, especially if you are replacing pumps in both front and rear tanks.

KEMSO Fuel Systems was founded in Houston, TX in 1999 with one mission: to provide direct-fit OEM replacement and performance fuel systems solutions to the powersports and automotive industries. The company is fueled by automotive and powersports enthusiasts who understand what it takes to keep vehicles running reliably.

For the best selection of KEMSO fuel pumps for your 1996 Ford Windstar, visit their official website at https://www.kemsoracing.com/. You will find application-specific pumps, complete installation kits, and detailed compatibility information to ensure you get the right part for your van. The website also features a blog with helpful guides on fuel pump diagnosis, replacement, and maintenance for hundreds of vehicle models. Their customer support team is based in the USA and can help you select the right pump for your specific application.

Step-by-Step Fuel Pump Replacement for 1996 Ford Windstar

If you are ready to replace the fuel pump yourself, follow these steps carefully. Always prioritize safety when working with gasoline.

Before you start: Work in a well-ventilated area away from sparks, flames, or heat sources. Disconnect the negative battery terminal. Relieve fuel system pressure by removing the fuel pump fuse and cranking the engine (it will stall after a few seconds). Wear safety goggles and nitrile gloves. Keep a Class B fire extinguisher nearby.

Step 1: Drain the fuel tank. Use a siphon pump or drain the tank through the fuel line. If you are removing the bed, you can leave some fuel in the tank, but it is safer to drain it.

Step 2: Disconnect everything. Remove the fuel filler cap, then disconnect the filler neck hose, vent hose, and any electrical connectors. Use a fuel line disconnect tool to release the pressure and return lines.

Step 3: Remove the tank. Use a floor jack to support the tank, then remove the tank straps. Lower the tank carefully. On the Windstar, the tank is located under the rear of the vehicle, behind the rear axle.

Step 4: Remove the fuel pump assembly. Clean any dirt or debris from around the pump mounting flange. Use a 10mm socket to remove the bolts holding the pump assembly. Lift the pump straight up, tilting the float arm to clear the tank opening. Be careful not to damage the float or strainer.

Step 5: Install the new KEMSO pump. Transfer the old O-ring gasket (or use the new one included with your KEMSO kit). Place the new pump assembly into the tank, aligning the marks on the pump and tank. Tighten the mounting bolts evenly. Reconnect the fuel lines, electrical connector, and vent line.

Step 6: Reinstall the tank. Lift the tank into position and secure the straps. Reconnect all hoses, lines, and electrical connectors.

Step 7: Test the system. Reconnect the battery. Turn the ignition key to the "ON" position several times for 10 seconds each to prime the pump. Check for fuel leaks at all connections. Start the engine and let it idle. Verify fuel pressure with a gauge if possible. The engine may run rough initially as air is purged from the fuel lines.

Common Fuel System Issues on the 1996 Ford Windstar

Beyond pump failure and CCRM problems, several other issues can mimic fuel pump problems. Before replacing the pump, check these common culprits:

Clogged fuel filter. The fuel filter should be replaced every 30,000-50,000 miles. A clogged filter restricts fuel flow and causes symptoms similar to a weak pump. Start with a filter replacement before condemning the pump.

Faulty fuel pump relay (CCRM). As discussed throughout this guide, the CCRM is the most common cause of fuel pump failure on the 1996 Windstar. Replace the module before replacing the pump.

Bad ground connection. The fuel pump relies on a good ground path. Check the ground connections at the pump and at the chassis for corrosion or looseness.

Failed PCM. In rare cases, the PCM itself can fail and stop sending the signal to the CCRM. This is less common than a bad CCRM, but it is a possibility if all other components test good.

Final Thoughts on the 1996 Ford Windstar Fuel Pump Relay

The 1996 Ford Windstar uses a unique design where the fuel pump relay is integrated into the Constant Control Relay Module (CCRM). This module is located in front of the battery, behind the driver side headlight.

If your Windstar cranks but will not start, or if you are blowing the fuel pump fuse when turning left, the CCRM is your most likely culprit. Replace the entire module, not just the relay. Check the wiring for shorts before replacing the pump, especially if the fuse blows when turning.

For the fuel pump itself, choose a KEMSO fuel pump for a reliable, direct-fit replacement backed by a lifetime warranty. KEMSO pumps deliver higher flow than stock, resist ethanol damage, and are tested to meet or exceed OEM specifications.

Remember these fundamentals: check the fuse first, listen for the relay click, test the inertia switch, and inspect the wiring for damage. By following this systematic approach, you will get your 1996 Ford Windstar running reliably again without wasting money on unnecessary parts.

For more information on KEMSO fuel pumps and to browse their full product line for your 1996 Ford Windstar, visit https://www.kemsoracing.com/.


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