2001 Ford Excursion Rear Wiper Motor: Fixing Seizures, Slowness, and Failure

The Most Common Problem: A Seized Wiper Shaft

By far, the most frequent issue with the 2001 Ford Excursion's rear wiper is not the electric motor itself, but the metal output shaft that the wiper arm attaches to. Over time, water, salt, and dirt work their way past the seals and cause the shaft to corrode and seize inside its housing. When this happens, the motor tries to turn the shaft but can't, leading to a variety of symptoms. In the early stages, the wiper may move very slowly or struggle. Eventually, it will stop moving altogether, even though you might hear the motor inside the liftgate trying to work.

Symptoms of a Failing Rear Wiper Motor

Diagnosing a bad rear wiper motor often starts with one of these common signs:

• Wiper Doesn't Move at All: This is the most obvious symptom. When you activate the switch, nothing happens. This could be a seized shaft, a dead motor, a blown fuse, or a wiring issue.
• Slow or Stuttering Wiper Motion: If the wiper moves much slower than it used to or seems to struggle, it's often a sign of a corroded, binding shaft that is putting a heavy strain on the motor.
• Wiper Stops in the Wrong Position: If the wiper stops in the middle of the glass instead of returning to its "parked" position at the bottom, it usually points to a problem with the motor's internal park switch.
• Clicking or Whirring Noise, But No Movement: If you can hear the motor running inside the liftgate but the arm isn't moving, the internal gears may be stripped or, more commonly, the output shaft is completely seized.
• Blown Fuses: A motor that is struggling to turn a seized shaft can draw too much electrical current, causing the fuse to blow repeatedly. For the 2001 Excursion, check fuses #21 and #48 in the fuse panel.

Diagnosing the Problem: A Step-by-Step Guide

Before you buy a new motor, follow these steps to confirm the motor is actually the problem. You will need a simple 12-volt test light.

1. Check the Fuses: The first and easiest check is to inspect fuses #21 and #48 in the interior fuse panel. If one is blown, replace it and test the wiper. If it blows again, there is likely a short or a seized motor.
2. Access the Motor Connector: You'll need to remove the interior trim panel on the rear liftgate. First, use a T30 Torx driver to remove the pull handle. Then, carefully pry the plastic panel off; it is held on by clips.
3. Test for Power and Ground: Locate the gray electrical connector going to the wiper motor's relay box. With the key in the 'on' position and the rear wiper switch activated, use a test light to check for power at the brown/white stripe wire and the black/green stripe wire. Then, check for good ground by connecting your test light between one of those power wires and the two solid black wires.
4. Interpret the Results: If you have power and ground at the connector but the motor doesn't run, the motor assembly has failed. If you are missing power or ground, you have a wiring issue, a bad switch, or a faulty relay.

Buying a Used 2001 Excursion Rear Wiper Motor

A used OEM motor can be a reliable and cost-effective solution, especially since the failure is often mechanical (seizure) rather than electrical. Here’s what to inspect before buying:

• Check the Output Shaft: This is the most critical inspection. Grab the splined shaft where the wiper arm mounts and try to turn it by hand. It should rotate with some resistance from the internal gears, but it must not be frozen solid. If it doesn't turn at all, the part is junk—it has the same problem you're trying to fix.
• Inspect the Electrical Connector: Look closely at the connector pins on the motor's relay box. They should be clean and free of any green or white corrosion. Bent or damaged pins are a major red flag.
• Examine the Mounting Points: The motor is held on by three studs. Ensure these are intact and the mounting bracket isn't cracked or bent. Damage here could be a sign the donor vehicle's liftgate was slammed excessively.
• Verify Part Numbers: The most common OEM part numbers are 1C7Z-17508-AA and 2C7Z-17508-AA. The 2C7Z part number often supersedes the original and fits a wider range of years, but both should work for a 2001 model.

Known Issues: A Note on the Front Wiper Motor Recall

There is a well-known safety recall (NHTSA #01V-258 / Ford #01S24) for 2000-2001 Ford Excursions related to the wiper motor. However, this recall only applies to the FRONT windshield wiper motor. It involves a switch in the gear case that could overheat and potentially cause a fire. This recall does not affect the rear wiper motor, which is a completely separate part.

Replacement Overview & Difficulty

Replacing the rear wiper motor is a straightforward job that most DIY mechanics can complete in under an hour.

• Difficulty: 2 out of 5
• Tools Required: T30 Torx driver, 13mm socket, 11mm socket, trim removal tool (optional).

Brief Steps:

1. Remove the interior liftgate trim panel.
2. Lift the plastic cover at the base of the wiper arm and remove the 13mm nut.
3. Wiggle the wiper arm off the motor shaft. This can be difficult if it's corroded. Gently tapping the end of the shaft while pulling can help break it free.
4. Disconnect the washer fluid hose.
5. Inside the liftgate, unplug the motor's electrical connector.
6. Remove the three 11mm nuts holding the motor in place and remove the motor.
7. Installation is the reverse of removal. Before putting the wiper arm back on, clean any corrosion off the glass and from around the shaft opening.

Cost of Replacement (2001 Ford Excursion Rear Wiper Motor)

Frequently Asked Questions (FAQ)