Electronic Shift On-the-Fly (ESOF) Automatic Hublock Operation
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
ELECTRONIC SHIFT ON-THE-FLY (ESOF) AUTOMATIC HUBLOCK OPERATION
| Hublock Operational State | Hublock Dial Switching Procedure |
|---|---|
| "Locked" position - Manual Override | Switch to the hublock dial to LOCK |
| "Free" Mode (for Troubleshooting or Recreational Towing) | Switch the hublock dial from AUTO to LOCK and back to AUTO to least 2 times |
| "Automatic" Operation via ESOF | Switch the hublock dial to AUTO |
| "Automatic" Vacuum Control with MSS in 4x4 HIGH or 4x4 LOW |
NOTE:
This cycle will always be completed and cannot be interrupted by switching the MSS to 2WD. If vehicle speed goes below 5 MPH during the 45-second cycle and the MSS remains in 4x4 HIGH or 4x4 LOW, the locking cycle will repeat. Switch the hublock dial to AUTO PVH solenoid activated for 45 seconds/vacuum at knuckle is 216 mm (8.5 in) Hg or more. PVH solenoid vents for 6 seconds. |
| "Automatic" Vacuum Control with MSS in 2WD |
NOTE:
Switching the MSS to 4x4 HIGH or 4x4 LOW will interrupt this cycle. Switch the hublock dial to AUTO PVH solenoid activated for 15 seconds/vacuum at knuckle is 150 to 180 mm (5.9 to 7.1 in) Hg. |