Excessive play of steering wheel
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Loose rack support cover
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Retighten
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Loose steering gear mounting bolts
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Retighten
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Loose or worn tie-rod end
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Retighten or replace as necessary
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Steering wheel operation is heavy (Insufficient power assist)
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V-belt slippage
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Check
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Damaged V-belt
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Replace
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Low fluid level
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Replenish
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Air in the fluid
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Bleed air
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Twisted or damaged hoses
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Correct the routing or replace
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Insufficient oil pump pressure
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Repair or replace the oil pump
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Sticky flow control valve
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Replace
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Excessive internal oil pump leakage
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Replace damaged parts
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Excessive oil leaks from rack and pinion in gear box
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Replace damaged parts
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Distorted or damaged gear box or valve body seal ring
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Replace
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The steering wheel does not return properly
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Excessive turning resistance of tie-rod end
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Replace
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Excessively tightened rack support cover
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Adjust
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Rough turning or inner tie-rod and/or ball joint
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Replace
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Loose mounting of gear box to gear box mounting bracket
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Retighten
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Worn steering shaft joint and/or body grommet
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Correct or replace
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Distorted rack
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Replace
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Damaged pinion bearing
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Replace
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Twisted or damaged hoses
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Reroute or replace
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Damaged oil pressure control valve
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Replace
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Damaged oil pump input shaft bearing
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Replace
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Noise
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Hissing Noise in Steering Gear
There is some noise in all power steering systems. One of the most common is a hissing sound when the steering wheel is turned and the car is not moving. This noise will be most evident when turning the wheel while the brakes are applied. There is no relationship between this noise and steering performance. Do not replace the valve unless the "hissing" noise is extremely objectionable. A replacement valve will also have a slight noise, and is not always a cure for the condition.
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Rattling or chucking noise in rack and pinion
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Interference with hoses from vehicle body
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Reroute
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Loose gear box bracket
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Retighten
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Loose tie-rod end and/or ball joint
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Retighten
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Worn tie-rod end and/or ball joint
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Replace
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Noise in the oil pump
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Low fluid level
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Replenish
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Air in the fluid
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Bleed air
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Loose pump mounting bolts
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Retighten
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