Brake pedal wont budge
08-01-2010, 03:53 PM
#11
AudiWorld Senior Member
You need a hydraulic pump that is operating properly before being concerned with the accumulator (bomb). The bomb does not come into play until you have a pressure source to provide pressure for it to store. The brakes will operate properly without the bomb if the hydraulic pump is providing pressure. You will not have the reserve capacity the bomb provides for rapid successive brake actuation and engine off pressure reserve.
Since the pedal is hard when the pump is operating it is not providing pressure. Hopefully you have checked the reservoir level for hydraulic fluid.
Since the pedal is hard when the pump is operating it is not providing pressure. Hopefully you have checked the reservoir level for hydraulic fluid.
08-01-2010, 07:18 PM
#13
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You have missed the point (I think): The power steering pump IS the power brake pump (two separate channels in the same pump).
Fubar = f'cked up beyond all recognition. I term I believe developed during World War II.
You need local to you hands on help. At this point, you will be throwing money at the car, either the ps/pb pump or the bomb. Take your pick and start.
Fubar = f'cked up beyond all recognition. I term I believe developed during World War II.
You need local to you hands on help. At this point, you will be throwing money at the car, either the ps/pb pump or the bomb. Take your pick and start.
You need a hydraulic pump that is operating properly before being concerned with the accumulator (bomb). The bomb does not come into play until you have a pressure source to provide pressure for it to store. The brakes will operate properly without the bomb if the hydraulic pump is providing pressure. You will not have the reserve capacity the bomb provides for rapid successive brake actuation and engine off pressure reserve.
Since the pedal is hard when the pump is operating it is not providing pressure. Hopefully you have checked the reservoir level for hydraulic fluid.
Since the pedal is hard when the pump is operating it is not providing pressure. Hopefully you have checked the reservoir level for hydraulic fluid.
Thanks for the clarification. The reservoir loses fluid really quickly. Also, could the filter be clogged? Im gonna start working on it tomorrow to start eliminating possibilities, since speculating different possibilities really wont help until i start working them out.
08-02-2010, 02:30 PM
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08-02-2010, 04:29 PM
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ok so i found the leak. It seems that is not leaking from any hoses or the xplug, rather i can see fluid dripping onto the bottom of the circular pulley infront of the PS pump. Does anyone have experience with this part of the pump leaking? Since i cant see exactly where its dripping from on the pump due to view obstruction, and i can only see where its dripping onto, im just assuming its dripping from the pump itself. I dont see any hoses or anything like that. Does this mean i have to replace the whole pump?
08-02-2010, 09:45 PM
#17
Might be the seals on the pump. Probably easiest/best to get a rebuilt one. Here is a Power Steering Pump R&R DIY
08-05-2010, 12:06 PM
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Just a quick update/question. I finally got the time to pull it out and i found/didnt realize that there is an xplug on the bottom of the pump as well from where the fluid is leaking from. Technically, cant this be replaced just as the top xplug can be replaced?
08-05-2010, 01:33 PM
#20
AudiWorld Senior Member
Yes, same size, same o ring. As with the top X-plug, be careful that there are no springs or small parts that the plug keeps in place.
This plug seldom leaks.
This plug seldom leaks.