CK5
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Had a little issue on Saturday that I should probably note. On my way to my buddies house (20 min drive) I completely lost my power steering. It was as if a switch was flipped, and I no longer had power. No noise, nothing out of the ordinary, plenty of fluid so I decided to limp it over to my buddies house and let it cool down. Waited 30-45 minutes or so and still had no power steering so I made the decision to drive it back home, I was obviously pretty pissed about it. About a mile from his house it came back, again like a switch was flipped but I didn't trust it so I drove all the way home. Back at home and after a short conversation with my friends we decided to go anyway, all was good until I was on that last obstacle (before last two pipes) and I lost power again. I was on a pretty steep incline, rear bumper on the ground so I'm starting to wonder if I'm getting air in the system somehow. When I bumped the pipe with some skinny pedal it came back (right before the video I posted). @Bent77 mentioned a valve in the pump that could get stuck, in theory this makes sense.

can the ram suck in air? It's the only used piece on this whole system.
 
Had a little issue on Saturday that I should probably note. On my way to my buddies house (20 min drive) I completely lost my power steering. It was as if a switch was flipped, and I no longer had power. No noise, nothing out of the ordinary, plenty of fluid so I decided to limp it over to my buddies house and let it cool down. Waited 30-45 minutes or so and still had no power steering so I made the decision to drive it back home, I was obviously pretty pissed about it. About a mile from his house it came back, again like a switch was flipped but I didn't trust it so I drove all the way home. Back at home and after a short conversation with my friends we decided to go anyway, all was good until I was on that last obstacle (before last two pipes) and I lost power again. I was on a pretty steep incline, rear bumper on the ground so I'm starting to wonder if I'm getting air in the system somehow. When I bumped the pipe with some skinny pedal it came back (right before the video I posted). @Bent77 mentioned a valve in the pump that could get stuck, in theory this makes sense.

can the ram suck in air? It's the only used piece on this whole system.

I had this happen to me a few years back... I re-bled the system and it came back only to have it come back an hour later. My problem ended up being heat. I added a better cooler and never had an issue again.
 
I had this happen to me a few years back... I re-bled the system and it came back only to have it come back an hour later. My problem ended up being heat. I added a better cooler and never had an issue again.

It was hot when it failed correct? The truck wasn't anywhere near hot, engine was in the high 170's with ambient temps around 65 degrees on my trip to my friends house. I was however at a sustained higher rpm (2600sh) for the drive system cavitation was discussed. I noticed PSC sells anti-splash vent thingy that keeps the system at 6psi. I just have the vent going to a gatorade catch can.....

and I run a log cooler btw
 
The PS fluid was HOOOOTTTT but the engine temp was pretty cool. It failed while driving on logging rd just after some slow crawling. I pulled over for 30 mins or so to re-bleed then to the next trail only to have it lock up again.

I went from a tube and fin type cooler to one of the "log" style coolers in front of the radiator and a PSC reservoir. No issues after that.
 
The PS fluid was HOOOOTTTT but the engine temp was pretty cool. It failed while driving on logging rd just after some slow crawling. I pulled over for 30 mins or so to re-bleed then to the next trail only to have it lock up again.

I went from a tube and fin type cooler to one of the "log" style coolers in front of the radiator and a PSC reservoir. No issues after that.

I could touch the pump with my hand, it wasn't hot. Plus I just got back from Moab, 95 degree's all day wheeling and not a single issue.
 
I could touch the pump with my hand, it wasn't hot.

Hmmmm... Mine was HOOOOOOOOT.

I'd guess you have air entering the system somehow then. Any leaks? Might check the return side as there wouldn't be as much pressure there to push out as much fluid. Can you see the fluid in the res? Any bubbles?
 
Hmmmm... Mine was HOOOOOOOOT.

I'd guess you have air entering the system somehow then. Any leaks? Might check the return side as there wouldn't be as much pressure there to push out as much fluid. Can you see the fluid in the res? Any bubbles?

there are some sweat marks on the bottom of the reservoir return, no leaks anywhere though. I don't see any bubbles in the reservoir when it's running.
 
I'm not sure if it's in the pump or the gear?

no idea but a valve sticking or failing is a plausible theory.

I'm going camping this weekend so hopefully it holds together.

a post wheeling inspection yesterday didn't shed any light on the leaning issue either. Maybe I bent a spring and I can't visually tell. Rear output is leaking a little, should probably swap that out before the weekend.

Both driveshafts got some love

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