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JFP in PA · 01-03-2012, 11:04 AM

I can; if they opened up the hydraulic system and allowed enough air to get into it while swapping engines, there is now air trapped in the ABS/PSM control network, which requires a very specific bleeding method to get rid of it that uses the PIWIS or Durametric systems to activate the hydraulic pump and controls valves during the bleeding process. There is no other way to get the air out of this system.

If they did not do this when they bled the brakes, there is air trapped in the control network, and the system needs the correct re-bleed.......... I'd be willing to bet the MIL codes are for a system malfunction due to this.

01-03-2012, 11:04 AM	#8
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,277	I can; if they opened up the hydraulic system and allowed enough air to get into it while swapping engines, there is now air trapped in the ABS/PSM control network, which requires a very specific bleeding method to get rid of it that uses the PIWIS or Durametric systems to activate the hydraulic pump and controls valves during the bleeding process. There is no other way to get the air out of this system. If they did not do this when they bled the brakes, there is air trapped in the control network, and the system needs the correct re-bleed.......... I'd be willing to bet the MIL codes are for a system malfunction due to this. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein Last edited by JFP in PA; 01-03-2012 at 11:06 AM.