* Binding or Stiffness: The mechanism is simply stiff and needs lubrication.
* Broken or Worn Parts: Internal components like gears, springs, or the tilt lever mechanism itself are damaged.
* Loose or Damaged Mounting: The steering column or tilt mechanism is loose or damaged where it attaches to the truck.
Here's a breakdown of how to approach the repair, starting with the simplest solutions:
1. Lubrication (Easiest):
* Disconnect the Battery: This is crucial to prevent accidental short circuits.
* Access the Tilt Mechanism: You'll likely need to remove the steering wheel shroud (the plastic cover around the steering column). This usually involves removing screws. Consult a repair manual for your specific model to be sure.
* Locate the Moving Parts: Carefully inspect the tilt mechanism. Look for any points where metal parts rub against each other.
* Apply Lubricant: Use a high-quality, silicone-based lubricant (like WD-40 Specialist Silicone Lubricant or similar). Avoid petroleum-based lubricants, as they can attract dust and grime. Apply sparingly to the moving parts and work the tilt mechanism back and forth several times to distribute the lubricant.
* Reassemble: Put everything back together and test the tilt function.
2. Inspecting for Broken or Worn Parts (More Involved):
If lubrication doesn't solve the problem, you'll need to delve deeper:
* Detailed Inspection: With the shroud removed, carefully examine all components of the tilt mechanism. Look for broken springs, stripped gears, or worn bushings.
* Repair Manual: A factory service manual or a Haynes/Chilton repair manual for your specific 1988 F-150 is *essential* at this stage. These manuals show diagrams and provide detailed instructions. Without one, you risk damaging the steering column further.
* Part Replacement: If you find broken or severely worn parts, you'll likely need to replace them. These parts may be difficult to find, depending on the extent of the damage. You might need to search online for parts suppliers specializing in classic truck parts.
* Consider Professional Help: If you're uncomfortable disassembling the steering column, it's best to seek professional help from a mechanic experienced with older vehicles.
3. Loose or Damaged Mounting (Less Common, Potentially Serious):
* Check for Loose Bolts: Examine all the bolts and fasteners that secure the steering column and the tilt mechanism to the truck. Tighten any that are loose.
* Inspect for Damage: Look for signs of damage to the column itself, or the mounting points on the vehicle's frame. This is a more serious issue that might require welding or replacement parts.
Important Considerations:
* Safety First: Working on the steering column is potentially dangerous. If you're not comfortable doing this repair, don't attempt it.
* Repair Manual: As mentioned above, a repair manual is invaluable. It will guide you through the disassembly, inspection, and reassembly process.
* Parts Availability: Finding replacement parts for a 35-year-old truck might be challenging. Be prepared to search multiple sources.
Before starting any repairs, take pictures of the process as you disassemble the parts. This will be very helpful when reassembling everything. Good luck!
