Vanden Plas L6-4.0L (1990)
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Drive the vehicle on a ramp (wheels must support the weight of the vehicle).
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Apply the parking brake and place the gear selector in P (park).
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Top-up the power hydraulic fluid reservoir.
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Start the engine and raise the ramp.
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Disconnect the ride height sensor link rod at the rear suspension right side lower wishbone.
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Raise the sensor link rod approximately 1 inch. The rear of the vehicle will rise after approximately 20 seconds.
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Switch off the engine when the "pulsing" is felt in the strut feed pipe.
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Remove the bleeder valve cover at the top of the left strut. Connect one end of a hose to the valve and place the other end in a waste container.
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Open the bleeder valve and allow fluid flow until the suspension lowers fully.
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Tighten the bleeder valve.
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Top-up the fluid reservoir.
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Start the engine and repeat the bleeding operation.
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Remove the bleed hose and refit the bleeder valve dust cover.
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Top-up the fluid reservoir.
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Start the engine.
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Raise the rear suspension by moving the sensor link rod.
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When "Pulsing" is felt in the strut feed pipe, reconnect the sensor link rod to the suspension wishbone. The vehicle will return to normal ride height
after approximately 20 seconds.
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Lower the ramp and top-up the reservoir.
PARTS INFORMATION:
WARRANTY INFORMATION:
Charge valve blocked - Replace charge valve
Fault Code: 5LTH
Repair Operation Number: 66.30.18/09
Time Allowance: 0.70 hrs.
Install strut filters/clean hydraulic system
Repair Operation Number: 66.91.24
