was rolling bout 65 mph and after climbing a small grade noticed i had no ps tried the brakes dead hard petal, needing to no how to check to see what part needs replaceing? have had no fluid loss (ps or brake) did pull the vac line right there at the vac pump and it sucked like a big dog so i no its doin its job any insite on to what to look at to tell me if its the ps pump or the hydra boost



pulling my 40 ft gooseneck into washington dc without ps or brakes sucked thank goodness for my trl brakes

 

Check the coupler between the vacuum and power steering pumps, mine was cracked down the side.

Your powersteering and brake assist both come from the PS pump.

 

thanks for the reply 1 ? though do the sell just the coupler or does it come with the ps pump?

 

update got it tore apart today and found both teeth or ribs or whatever you call the broke off on the vacume pump ouch that thing is spendy napa 495.95 advanced 522 and change, *********** 2200 bucks and change!!! there out of there minds