Atomic

iTrader: (37)

I just finished up my hydroboost swap and have a problem. Whenever I start the truck the pedal immediately goes all the way to the floor, and after a min or so the power steering pump starts overheating. I can hear the pump being loaded while just ideling and me watching it (the sound when you turn your tires to full lock). I shut it down because im afraid the pump is burning up. The belt is not slipping on the pulley or the pulley on the shaft. The fluid gets hot enough in about 45 seconds to start boiling.

I have it plumbed, pump > hydroboost in (pass side)> hydroboost out (driver side) > gear box in > gear box out T'd with hydroboost low pressure > cooler > pump

I reused my stock master cylinder and didnt have to disconnect anything so that should be fine.

I tried running the low pressure return directly into the resovoir, no help.
System has been bleed multiple times.

any ideas?

NBM-LS1

iTrader: (7)

What the condition on the pump? New? used? The pressure relief should open.