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Hmmwv ps testers are on eBay for cheap....the ones for sale are specifically for the hmmwv steering system.
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Yes I changed out the pump with a NOS unit, but the problem persisted prior to the pump swap. I was hoping the new pump would have fixed the problem, but noI know GM PS pumps have a pressure relief valve inside. It just dumps back into the tank. It is for when the steering wheel is at a full lock I didn't see where you changed the pump. If you did, I missed it. If you did there is a good chance it was a bad rebuild. My luck lately has been poor quality from the auto part industry. Mabye your pump is not relieving? I would install a hyd pressure gauge from northern equipment on a line from the pump. At least to narrow down the culprit.
Yes I changed out the pump with a NOS unit, but the problem persisted prior to the pump swap. I was hoping the new pump would have fixed the problem, but no
After replacing most everything in the system ( lines, cooler, Cadillac valve, temp sensor, time delay module, PS pump, fan clutch 3 times , it ended up being Cadillac valve. The second NOS unit fixed my problem . I have a good sized area in and around my driveway grass will probably never grow again because of the power steering fluid dispersing like Old Faithful geyser, but the truck operates as intended now. I can look back on the ordeal and laugh now, but at the time of frustrating lack of positive results, I do admit to a bit of teeth gnashingSo, what ever came of this? I just changed out my solenoid/cadillac valve and MAN is it comforting to hear that fan kick in when I unplug the connector.
Had me worried a bit.
You sort this out?
Wow.After replacing most everything in the system ( lines, cooler, Cadillac valve, temp sensor, time delay module, PS pump, fan clutch 3 times , it ended up being Cadillac valve. The second NOS unit fixed my problem . I have a good sized area in and around my driveway grass will probably never grow again because of the power steering fluid dispersing like Old Faithful geyser, but the truck operates as intended now. I can look back on the ordeal and laugh now, but at the time of frustrating lack of positive results, I do admit to a bit of teeth gnashing
Yes, didn't see any other way. I labeled or color coded everything I removed, which helped when putting it back together. If any of your cooler hoses show signs of cracking or age, it would be a good time to replace. At the advice of Infidelgotme, I double clamped all the cooler hoses when putting it back together. Follow the timely bleeding procedure in the TM- no short cutsGeneral Hood--did you remove the radiator stack to remove the fan clutch --my clutch is also leaking at the o rings
The cooling stack will have to come off. I couldn't undo the trans cooler lines without pulling the side shielding off. Someone with a lot more tools than me could probably leave them on but removing the side shield on the driver side was necessary. I could have done the passenger with it on but it comes off so quick I figure it was more time efficient to pull it.General Hood--did you remove the radiator stack to remove the fan clutch --my clutch is also leaking at the o rings
Verify and double verify the plumbing is correct, anything hooked up wrong or backwards in the system will cause this problem, however, in my case it was a faulty component (cadillac valve).I'm still having this issue of blowing hoses off. I have too much pressure. I cannot find anywhere in the TM's a diagram of the power steering hoses that include both the power steering fluid reservoir AND the cadillac valve. Everything was plumbed back the way it was but I want to confirm it with a diagram that I cannot find. The engines a pullout ECV 6.5 turbo. Any help appreciated,
Well, I checked out the diagram that he mentioned and it looks pretty clear to me. You're saying that your setup is different than this? The pump is integral to the reservoir in a standard setup. If you only have two lines versus three and your pump assembly looks different than part E, you should post up some pictures, as you would have something non-standard.Yes, the same one as you posted earlier in this thread. It does not show an oil reservoir though. And it shows three lines coming out of the pump. My pump only has two ports.