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Old 11th April 2018, 10:08 PM
MikkiJayne MikkiJayne is offline
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Join Date: Jan 2012
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The only thing that could cause swarf in the system is the pump self-destructing, due to being run dry or cavitating.

Suspect #1 is that it sprung a leak somewhere and ran dry, hence a loss of power steering - the original fault perhaps? If it was run for any significant amount of time like that the pump could have shredded itself and sent debris round the system.

Dealership fixes the leak, tops it up and sends it out of the door, but the damage is done - swarf from the pump is now travelling round the system destroying seals and moving surfaces. Eventually it kills a seal somewhere that causes the system to lose pressure - loss of power steering again. Dealership replaces the pump perhaps? Rinse and repeat...

However it happened, if there is now swarf in the system all components are toast and need replacing - rack, pump, reservoir, cooler, and all the hoses. Its impossible to flush metallic particles out properly so they will just travel round the system trashing any seals or moving surfaces with which they come in to contact. Its like putting petrol in a commonrail diesel engine - the pump grenades and takes everything else with it.
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