1. Preparation:
* Safety First: Disconnect the negative battery terminal to prevent accidental electrical shorts.
* Access: You'll need to access the window mechanism from inside the door. This usually involves removing the interior door panel. Consult a repair manual (Chilton's or Haynes are good sources) for specific instructions on removing the panel for your model year. Be careful not to break any plastic clips.
* Tools: You'll likely need a flashlight, possibly some small tools (depending on how the panel is held in place), and maybe some lubricant (white lithium grease is good for window regulators).
2. Locating the Problem:
* Inspect: Once the panel is off, carefully examine the window and the regulator mechanism. Determine exactly where the window has come off the track. It's often at the top or bottom.
3. Re-attaching the Window:
* Manual Manipulation: This is the most common approach. Gently try to guide the window back onto the track using your hands. You might need to carefully lift or push the window slightly to realign it with the track.
* Working from the Bottom: It's often easier to start at the bottom of the window and work your way up. Try to slide the window into the bottom track first, then gently guide it upwards into the top track.
* Using Tools (if necessary): If you can't reach the window easily, long-nose pliers or similar tools might help you grasp the window and maneuver it back onto the track. Be extremely careful not to scratch or damage the glass.
* Lubrication: Once the window is back on the track, apply a small amount of white lithium grease to the regulator mechanism and the tracks. This will help prevent future issues.
4. Reassembly:
* Careful Re-installation: Carefully put the interior door panel back in place, ensuring all clips are properly seated.
* Test: Reconnect the negative battery terminal and test the window. It should move smoothly up and down.
Important Considerations:
* Broken Parts: If the regulator itself is broken (a common problem), you'll need to replace it. This is a more involved repair.
* Stuck Mechanism: If the window regulator is seized, you might need to free it up using lubricant and possibly some gentle prying (again, with care).
* Repair Manual: A repair manual specific to your 1999 Dodge Intrepid is highly recommended. It will provide detailed diagrams and instructions that are far more helpful than a general description.
If you're uncomfortable working on your car yourself, it's best to take it to a qualified mechanic. Attempting a repair you're not confident in can lead to further damage.
