If your parking brake isn't working correctly, you should not attempt to adjust it yourself. Improper adjustment can lead to further damage and safety hazards. Here's what you should do instead:
1. Check the Parking Brake Cable: While you can't adjust the internal mechanism, you *can* check for external damage to the parking brake cable. Look for fraying, kinks, or rust. If there's visible damage, the cable needs replacing.
2. Inspect the Rear Brake Shoes/Pads: Low rear brake pads/shoes will also affect parking brake performance. Worn pads need replacing. This is typically done by a mechanic.
3. Have it Professionally Inspected: The most likely cause of a malfunctioning parking brake on a 2006 Expedition is an internal problem within the rear drum brakes, such as:
* Worn brake shoes: These are the components that the parking brake directly actuates.
* Adjuster mechanism failure: The self-adjusting mechanism inside the drum may be malfunctioning.
* Internal cable or linkage issues: Problems within the drum assembly itself can interfere with the parking brake function.
* Low brake fluid: While less likely to directly affect the parking brake's *mechanical* function, low brake fluid suggests a larger braking system problem that warrants a professional's attention.
Take your Expedition to a qualified mechanic or brake specialist. They have the tools and expertise to diagnose the problem and perform the necessary repairs or replacements. Attempting to fix this yourself could be dangerous and likely won't resolve the underlying issue.
