Possible Causes:
* Master Cylinder: This is the most common culprit. The master cylinder pushes the fluid to the slave cylinder, actuating the clutch. A leak here can be from a damaged seal, a cracked reservoir, or internal wear. Replacing the master cylinder is often the solution.
* Slave Cylinder (if accessible from under the dash): While less likely to be accessed from *under* the steering column, a leaky slave cylinder could *potentially* cause fluid to drip down into that area. This would usually require more access from underneath the vehicle.
* Lines and Hoses: A leak in the hydraulic lines or hoses connecting the master and slave cylinders could also cause fluid to drip down. Inspecting for cracks, kinks, or loose fittings is crucial. Repair usually involves replacing the affected section.
* Damaged Pedal Push Rod or Pivot Points: While less common, damage to these components can lead to fluid leakage around the pedal assembly.
Steps (For a Mechanic – DO NOT ATTEMPT THIS YOURSELF UNLESS EXPERIENCED):
1. Locate the Leak: Carefully examine the area under the steering column. Look for wet spots, fluid trails, or the source of the leak itself. This often involves removing some under-dash panels.
2. Assess the Damage: Once you've found the leak, determine the component responsible. This may require disconnecting parts and inspecting seals, O-rings, and other components.
3. Repair or Replace: Depending on the cause, you might need to replace the master cylinder, repair or replace a hydraulic line, or replace seals and O-rings. Bleeding the clutch system after any repair is essential.
4. Bleed the Clutch: After any repair or component replacement involving the clutch hydraulic system, proper bleeding is crucial to remove air bubbles and restore clutch function. This typically involves opening a bleeder valve on the slave cylinder and pumping the clutch pedal while keeping the reservoir topped off.
Important Considerations:
* Safety: Working under the dashboard involves potential risks. Disconnect the battery negative terminal before starting any work. Use appropriate safety glasses and gloves.
* Fluid Type: Use the correct DOT-rated brake fluid (specified for your Ford van) when topping off the reservoir or bleeding the clutch. Mixing fluid types can be harmful.
* Professional Help: If you're not comfortable working on your vehicle's braking or clutch systems, take it to a qualified mechanic. The cost of repair is significantly less than the potential cost of an accident caused by a failed clutch.
This information is for guidance only. A mechanic will have the specialized tools and expertise to properly diagnose and repair the leak safely and efficiently. Attempting this repair yourself could result in further damage or injury.