Operation CHARM
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Ford Truck
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1987
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Aerostar L4-140 2.3L SOHC
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Repair and Diagnosis
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Steering and Suspension
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Steering
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Testing and Inspection
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Torsion Bar Gear
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Loss of Power Assist
Loss of Power Assist
1.
Pump inoperative.
2.
Hydraulic lines damaged.
3.
Power cylinder damaged.
4.
Valve spool or rotary valve out of adjustment.