1998-2002 Subaru Forester Window Motor: A Guide to Slow, Stuck, and Dead Windows

Symptoms of a Failing Power Window Motor

When a power window motor in a 1998-2002 Forester begins to fail, it usually provides several warning signs. Recognizing these symptoms can help you determine if the motor is the problem before you start taking the door apart.

• Slow Window Operation: The most common symptom is a window that moves noticeably slower than it used to. This is often more pronounced in cold weather and is a sign that the motor is getting weak from age and wear.
• Grinding or Clicking Noises: Hearing a grinding, clicking, or whirring sound from inside the door when you press the switch indicates the motor is receiving power but is struggling. This could be due to worn gears inside the motor or a problem with the attached regulator.
• Intermittent Function: The window may work one day but not the next. Sometimes, tapping on the door panel while pressing the switch can temporarily get it to work, which often points to a worn motor or a loose electrical connection.
• Window Moves in Only One Direction: If the window will go down but not up, or vice-versa, it can be a sign of an internal failure within the motor itself or a faulty window switch.
• Window is Completely Dead: If you press the switch and nothing happens—no sound and no movement—the motor may have completely burned out. However, this can also be caused by a bad switch or a blown fuse, so further diagnosis is needed.

Diagnosing the Problem: Motor, Switch, or Regulator?

Before buying a replacement motor, it's important to confirm it's the actual cause of the problem. The issue could also be a bad window switch, a blown fuse, or a failed window regulator.

1. Check the Fuses: Your owner's manual will have a diagram of the fuse box. Locate the fuse for the power windows and inspect it. If the metal strip inside is broken, replace it and test the window again. If all windows stopped working at once, a fuse or relay is a likely culprit.
2. Listen for Motor Noise: Have a helper operate the switch for the faulty window while you listen closely to the inside of the door. If you hear a humming or whirring sound, the motor is getting power. This means the switch and fuse are likely okay, and the problem is either a weak motor or a jammed/broken window regulator.
3. Rule Out the Switch: The driver's side master switch is a common failure point. If a single window doesn't work from its own switch or the master switch, the problem is likely the motor or regulator in that door. If the passenger windows work from their own switches but not from the master switch, the master switch itself is the most likely problem.
4. Check for Binding: If the window moves slowly, seems to tilt in its track, or gets stuck, the glass may be binding in its guides or the regulator may be damaged. This extra resistance can overwork and burn out the motor.

Buying a Used 1998-2002 Forester Window Motor

For a vehicle of this age, a used OEM motor is often a practical and reliable choice. They are typically more robust than cheap aftermarket alternatives and offer significant cost savings over a new dealer part.

Compatibility: The Most Important Check

The power window motors for the 1998-2002 Forester are specific to the left (Driver) and right (Passenger) sides of the vehicle. However, the front and rear motors on the same side are generally interchangeable.

• Left Side (Driver): The same motor typically fits the Front Left and Rear Left doors.
• Right Side (Passenger): The same motor typically fits the Front Right and Rear Right doors.

What to Inspect Before You Buy

• Check the Connector: Ensure the 2-pin connector and its wiring are free of corrosion, cracks, or damage.
• Inspect the Gear: Look at the drive gear on the motor. The teeth should be intact and not stripped or excessively worn.
• Bench Test the Motor: If possible, test the motor before installation. You can do this by using jumper wires connected to a 12V car battery. Briefly touch the wires to the two pins on the motor's connector. The motor should spin forcefully. Reverse the polarity (swap the wires on the pins), and the motor should spin in the opposite direction. This confirms the motor works in both up and down directions.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

There are no specific recalls or Technical Service Bulletins (TSBs) issued by Subaru or the NHTSA for power window motor failure on the 1998-2002 Subaru Forester. Any failures are typically due to the age and normal wear and tear of the components.

Cost of Replacement: 1998-2002 Subaru Forester

The cost can vary significantly depending on the type of part you choose and whether you perform the labor yourself.

Step-by-Step Replacement Guide (DIY)

Replacing the window motor is a manageable DIY job for someone with basic tools and mechanical skills. The process is similar for all four doors.

• Difficulty: 2.5 out of 5
• Estimated Time: 1-2 hours
• Tools Needed: Phillips screwdriver, 10mm socket and ratchet, trim removal tool, flathead screwdriver.

Brief Walkthrough:

1. Remove the Door Panel: Start by removing the screw inside the door handle cup and the one in the door pull recess. Use a trim removal tool to carefully pry the door panel away from the door frame, releasing the plastic clips. Lift the panel up and off the door.
2. Disconnect Switches: Unplug the electrical connectors for the window and lock switches.
3. Peel Back the Vapor Barrier: Carefully peel back the plastic weather barrier to gain access to the inside of the door. Try not to tear it, as it needs to be re-sealed later to prevent water leaks.
4. Unplug the Motor: Locate the window motor and unplug its 2-pin electrical connector.
5. Unbolt the Motor: The motor is held to the window regulator assembly by three Phillips head or 10mm screws. It can be awkward to reach inside the door, but you can remove these screws to separate the motor from the regulator without removing the entire regulator assembly.
6. Install the New Motor: Bolt the new motor onto the regulator, plug in the electrical connector, and test its function using the switch before reassembling the door.
7. Reassemble: Re-seal the vapor barrier, reconnect the switches, and reinstall the door panel by reversing the removal steps.

Frequently Asked Questions (FAQ)