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SPECIFICATIONS
SECTION 211-
00: Steering System — General Information 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricants
Motorcraft MERCON® Multi-Purpose (ATF) Transmission Fluid XT-
2- QDX MERCON®
Power Steering Gear
Turning effort 2.27 Kg (5.0 lb)
Turns lock-to-
lock 2.38
Power Steering Purge Vacuum
Vacuum 68-
85 kPa (20- 25 in/hg) Power Steering Pump —
CII Flow 9.8 liters/minute
(2.6 gpm)
Fluid @ 74°- 80° C (165°-175°
F)
Engine at 1,500 rpm Pressure 1,034 kPa
(150 psi)
Fluid @ 74°- 80° C (165°-175°
F)
Engine at 1,500 rpm Minimum capacity 3.4 liters/minute
(0.9 gpm)
Fluid @ 74°- 80° C (165°-175°
F)
Engine at idle
Pressure at 5,102 kPa (750
psi) Relief pressure 7,240-8,400 kPa
(1,050-1,230 psi) Power Steering Pump —
CIII Flow 9.8 liters/minute
(2.6 gpm)
Fluid @ 74°- 80° C (165°-175°
F)
Engine at 1,500 rpm Pressure 1,034 kPa
(150 psi)
Fluid @ 74°- 80° C (165°-175°
F)
Engine at 1,500 rpm Minimum capacity 4.7 liters/minute
(1.25 gpm)
Fluid @ 74°- 80° C (165°-175°
F)
Engine at idle
Pressure at 5,171 kPa (750 psi) Klj . 1 ba
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Relief pressure 8,274-9,510 kPa
(1,200-1,380 psi) Klj . 2 ba
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DESCRIPTION AND OPERATION
Steering System
The steering system has a typical rack-and-
pinion design consisting of the following:
Steering System Components — 3.8L Engine (CII Power Steering
Pump)
Steering System Components — 4.6L Engine (CIII Power Steering Pump) SECTION 211-
00: Steering System — General Information 2003 Mustang Workshop Manual Item Part Number Description
1 3A714 Power steering hose
2 3A674 Power steering pump
3 3493 Power steering hose
4 3504 Steering gear
5 3A130 Tie-
rod end 6 3493 Power steering hose
7 3D746 Power steering fluid cooler Klj . 1 ba
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For information on the power steering oil reservoir (3A697), refer to
Section 211 - 02 .
For information on the steering wheel and column assembly, refer to Section 211 - 04 .
For information on the power steering hoses, refer to Section 211 - 02 .
For information on the front wheel spindles, refer to Section 204 - 01 .
For information on the power steering fluid cooler, refer to Section 211 - 02 .
For information on the power steering pump, refer to Section 211 - 02 .
For information on the steering gear, refer to Section 211 - 02 . Item Part Number Description
1 3A713 Power steering hose
2 3R700 Power steering pump reservoir
3 3A714 Power steering hose
4 2B559 Hydro-boost assy
5 3E525 Power steering hose
6 3504 Steering gear
7 3A130 Tie-
rod end 8 3A713 Power steering hose
9 3D746 Power steering fluid cooler
10 3A674 Power steering pump Klj . 2 ba
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Klj . 3 ba
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DIAGNOSIS AND TESTING
Steering System
Inspection and Verification
CAUTION: Do not hold the steering wheel (3600) at the stops for an extended amount of
time. Damage to the power steering pump (3A674) will result. NOTE: Make the following preliminary checks before repairing the steering system:
SECTION 211-
00: Steering System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Dial Thermometer 0-
220°F
023- R0007 or Equivalent Hand Held Automotive Meter
105-
R0053 or Equivalent Power Steering Analyzer
211-
F001 (014- 00207) or
Equivalent Spring Scale
211-
034 (T74P-3504- Y) Tach Adapter
418-
F102 (007- 00061) or
Equivalent Tie-
Rod End Remover Tool
211- 001 (TOOL- 3290-D) or
Equivalent Klj . 1 ba
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