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Old 05-09-2012, 07:55 AM   #1
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hydoboost brake/power steering problem

just bought a 93 fleetwood with the chevy workhorse chassis i think it is. my problem is when in park my power steering pump whines but my brakes and steering are both working. just a couple of seconds after i put it in drive or reverse the pump stops whinning but my steering and brakes both go out. put it back in park and in a few seconds the pump starts to whine again and both steering and brakes work again. it has an auto applied emergency brake which is the only thing that i can see would change in and out of gear. have tried leaving the foot parking brake on but does not change anything. have bled they system a few times and there are no leaks at all. also after i shut the motor off it starts to puke fluid out of the fluid resivour. have left the fluid level low and filled it to its proper level and still have the same problem. thought bleeding the system would eliminate the puking but did not help at all. have purchased a new pump but it is a major job to install it. anyone have any ideas???
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Old 05-09-2012, 09:34 PM   #2
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well thought about it today and figured it had to have something to do with the auto ebrake so found where the linkage comes off the steering colum to the auto ebrake valve and unhooked it. first i put it in drive and unhooked the cable to the ebrake from the auto ebrake. then made a spacer so when i placed it in park it would not pull the cable all the way to the case. now my power steering and brakes work all the time but since these have no actual lock for the driveline when in park would still like to fix the auto system. would hate to forget to set the manuel foot ebrake and have it roll away! anyone here in the know about this system???
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Old 05-10-2012, 11:42 AM   #3
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The expert on the Auto Park brake system is Oldusedbear. I haven't seen him on the forums lately but his contact addy is:

Give him a shout. He has all sorts of documentation on those systems.
'02 Winnebago Journey DL, DSDP, 36' of fun.

Visit my RV Travel & Repair Blog at :
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