05 2500 ,Steering gear box was leaking took it in and dealer said it was junk replaced with a new one but said they had a few come in lately,but cant figure out why they are building pressure does any body why they would build pressure,and why wouldnt the dipstick pop first??

 

No dipstick on powersteering reservoir. Well, at least not in the traditional skinny spring stick into a tube. If ya get air in there, from cavitation or breakdown of the fluid, pressure will build, but since the top "locks" on to the reservoir, there is no easy way out. I had all the powersteering hoses off for my milemarker 12klb hydraulic winch. Took a good 15 minutes with a helper to bleed the system, then it "burped" air for the next few days. All was well after that.

 

I just had my steering box replaced and it is still pressurizing the reservoir . Seem to recall seeing a post where a guy had his cap swapped and it did the trick . Something about the vent being plugged and building pressure !! Moron that replaced my pump left hose on top of long intake bolt and both hoses were rubbing .......... I can see why guys become their own warranty station !!! Both of my gassers saw 300,000 miles because I did all repairs & maint myself !

 

Some members have lost the cap to the P/S pump because of the pressure build up. A quick and easy fix is to put a very small notch in the o-ring seal so it will allow the reservoir to vent.

MikeyB