1. Gather Tools:
* Phillips head screwdriver: Likely the most important tool.
* Flathead screwdriver (optional): Might be helpful for prying things loose gently if needed.
* New door check: Make sure you get the correct replacement part for your 1999 Toyota Sienna driver's side door. You can find this information via your VIN number at a Toyota dealership or online auto parts store. A picture of the old one will also help when ordering.
* Penetrating oil (optional): If the screws are particularly stubborn.
2. Access the Door Check:
* Open the driver's side door fully. This gives you the best access.
* Locate the door check: It's a cylindrical device usually attached to the door and the door frame. It's typically near the hinge area.
3. Remove the Old Door Check:
* Inspect the door check: Note how it's attached. There are usually one or more screws holding it in place on both the door and the door frame.
* Apply penetrating oil (optional): If the screws are rusty or difficult to turn, spray some penetrating oil on them and let it sit for a few minutes.
* Remove the screws: Carefully remove the screws that secure the door check to both the door and the door frame. Keep track of which screw goes where.
* Remove the door check: Once the screws are out, the door check should come off relatively easily. There might be some slight resistance.
4. Install the New Door Check:
* Align the new door check: Carefully align the new door check with the mounting points on the door and the door frame. Make sure it's properly seated.
* Install the screws: Reinstall the screws you removed earlier, ensuring they're tightened securely but not overtightened. Overtightening can strip the screw holes.
* Test the door: Open and close the door several times to ensure the new door check is working properly and the door stays open at the desired angle.
Important Considerations:
* Door Panel Removal (Potentially): In some cases, you might need to partially remove the inner door panel to get better access to the door check. If you need to do this, there are numerous online tutorials showing how to remove a 1999 Sienna door panel. Search YouTube for "1999 Toyota Sienna driver's side door panel removal". Be careful not to damage any electrical connectors or clips.
* Screw Size and Type: Take note of the type and size of the screws to ensure you replace them correctly.
* Online Resources: Search YouTube for videos showing this repair on a 1999 Toyota Sienna. Visual aids are incredibly helpful. Search for something like "1999 Toyota Sienna driver side door check replacement".
If you're uncomfortable performing this repair yourself, it's always best to take your vehicle to a qualified mechanic. They have the experience and tools to ensure the job is done correctly.
