MATERIAL SPECIFICATION
| Item | Specification | Fill Capacity |
|---|---|---|
| Dye-Lite® ATF/Power Steering Fluid Leak Detection Dye 164-R3701 (Rotunda) | ||
| MERCON® V Automatic Transmission Fluid XT-5-QM (or XT-5-QMC) (US); CXT-5-LM12 (Canada) | MERCON® V | 1.3L (2.7 pt) (1) |
| (1) Approximate capacity included in-pump reservoir fill. | ||
| (1) | Approximate capacity included in-pump reservoir fill. |
MATERIAL SPECIFICATION
GENERAL SPECIFICATION
| Item | Specification |
|---|---|
| Power Steering Gear | |
| Ratio | 20:1 |
| Static steering wheel turning effort | |
| Expedition | 5.0 Nm (44 lb-in) |
| Navigator | 4.0 Nm (35 lb-in) |
| Tie-rod articulation torque | 5 Nm (44 lb-in) |
| Turning effort | |
| Expedition | 2.68 kg (5.9 lb) |
| Navigator | 2.14 kg (4.7 lb) |
| Turns of steering wheel (lock to lock - linkage disconnected) | 3.75 |
| Type | Rack and Pinion |
| Power Steering Pump | |
| Flow (Expedition) | 11L ± 0.8L @ 345 kPa (3.0 gpm ± 0.2 gpm @ 50 psi) engine speed @ 1,200 RPM 9.5L ± 0.8L @ 345 kPa (2.6 gpm ± 0.2 gpm @ 50 psi) engine speed @ 3,000 RPM |
| Flow (Navigator) | 11L ± 0.8L @ 345 kPa (3.0 gpm ± 0.2 gpm @ 50 psi) engine speed @ 1,200 RPM |
| Minimum capacity | 6.6L @ 5,171 kPa (1.6 gpm @ 750 psi) engine speed @ 500 RPM |
| Relief pressure | 8,963-10,204 kPa (1,300-1,480 psi) |
| Power Steering Purge Vacuum | |
| Minimum vacuum | 67-84 kPa (20-25 in-Hg) |
GENERAL SPECIFICATION
The power steering system consists of the following components
- Power steering pump
- Power steering fluid reservoir
- Steering gear
- Power steering lines
- Steering column
- Steering column shaft
- Power steering cooler (if equipped)
The power steering system transfers driver inputs at the steering wheel to the front wheels of the vehicle. The steering column, hydraulic system and linkages that transfer these driver inputs make up the steering system. Gearing and hydraulic assist are used to significantly reduce steering efforts.
For information on the power steering fluid reservoir, power steering pump, power steering lines and steering gear, refer to POWER STEERING .
For information on the steering wheel, steering column and steering column shaft, refer to STEERING COLUMN .
See also:
• JACKING & LIFTING