1. Preparation:
* Park the vehicle on a level surface and engage the parking brake.
* Locate a clean rag or towel. You'll need this to protect the paint and window.
* Gather appropriate tools: You'll likely need a wiper arm puller tool. While some people try it with pliers, a puller is safer and less likely to damage the arm or the wiper motor shaft. If you don't have a puller, you might be able to improvise with a sturdy, flat-bladed screwdriver, but be extremely careful.
2. Removing the Wiper Arm:
* Locate the wiper arm nut: This is usually a small nut under a plastic cap on the wiper arm's base. Carefully remove this cap.
* Attempt to loosen the nut: Try to loosen the nut by hand first. If it's stubborn, use the appropriate wrench (likely a small socket wrench). Do not force it. If you're struggling, it's better to stop and consider using a penetrating oil like PB Blaster first to loosen it up. Let it sit for a while before trying again.
* Once the nut is loose, remove it completely. Set it aside in a safe place.
* Use the wiper arm puller: Position the puller according to its instructions. The puller will generally attach to the wiper arm and then you use it to pull the arm off the wiper motor shaft. Apply firm, even pressure. The arm may be stuck, but avoid using excessive force. If it's really stubborn, try gently tapping the puller's handle with a rubber mallet. You might need to wiggle the arm back and forth gently while pulling.
* If you're not using a puller and are improvising (not recommended): Very carefully wedge the flat-bladed screwdriver between the wiper arm and the wiper motor shaft. Apply gentle pressure while simultaneously trying to wiggle the arm. This is risky and easier to damage the arm or shaft with this method.
3. After Removal:
* Clean the wiper motor shaft: Use a clean rag to remove any dirt or debris.
* Inspect the wiper arm and shaft: Check for damage.
Important Notes:
* Consult a repair manual: A repair manual specific to your 2007 Chevy Tahoe will provide diagrams and detailed instructions. This is highly recommended.
* Take pictures: Before you start, take pictures of how everything is assembled. This will help you put it back together correctly.
* Be patient and gentle: Forcing anything can easily lead to damage.
* If you're not comfortable doing this yourself, take it to a professional. A mechanic can remove the wiper arm quickly and safely.
By following these steps carefully, you should be able to remove your rear wiper arm. Remember, safety and patience are key!
