Range Rover Sport (LS) V8-4.2L SC (2006)
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Demand 50 bar (725 psi) of pressure for up to five minutes or until the primary circuit pipes are hot. ([A] in Figure 3)
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Check pipe temperature under RH wheel arch.
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If 50 bar (725 psi) cannot be obtained, * refer to GTR Workshop Manual section 204-06 (60.60.23) to replace the faulty Pressure Control
Valve (PCV) in the valve block*.
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Open DCV1 and verify that system pressure is still 50 bar (725 psi).
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Hold 50 bar (725 psi) pressure for two minutes.
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If pressure has dropped by over 5 bar (72.5 psi), confirm in step 7 and replace the affected actuator.
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Open DCV2 and verify that system pressure is still 50 bar (725 psi).
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Hold 50 bar (725 psi) pressure for two minutes.
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If pressure has dropped by over 5 bar (72.5 psi), confirm in step 7. The affected actuator will be replaced.
NOTE:
If the temperature comparison test is not conclusive at this stage, continued diagnosis revealing filter contamination (Condition B Figure 6)
may indicate that the front actuator requires replacement.
7.
Confirm which actuator is faulty by observing the follow symptoms:
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If all four pipes in the front wheel arch area are hot and at a similar temperature the front actuator is faulty.
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If the pipes in the rear wheel arch are hot, the rear actuator is faulty.
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If the pressure has dropped, but there is no increase in the actuator pipes and rear pipes temperature ([B] in Figure 3), the valve block is faulty
and requires replacement.
Check System Contamination and Replace Components As Required
CHECK SYSTEM CONTAMINATION AND REPLACE COMPONENTS AS REQUIRED