Grasping at straws

[DPittman]

It’s not a dumb question. I didn’t know there are pumps that specify ATF.
PS fluid came out of the old and that’s what went back in the new one. Fresh of course

 

[joeysmith]

I wonder if they have the wrong housing on them blocking the pickup for the pump
Or wrong gaskets maybe holding the housing on

 

[Hobo,NC]

This is somewhat common on you truck. It does happen on other vehicles. I agree aftermarket pumps are hit and miss I don't think because it will not work/bleed the pump is your problem. What NDIHC said to do is common for us that actually do this for a living. The reason we go though a bleeding procedure is it does not leave making a noise. Its quick and simple and works most of the time.

There are several ways you can go this Yes a drill, air tool are cordless tool will prime most any P.S. pump it does not have to be high RPM.


1. The hydraulic brake booster needs to be bled.

2. Fill the power steering pump with fluid.

3. Remove the fuel cut off relay and crank the engine for 5-10 seconds.

4. Reinstall the relay and start the engine and turn the wheels lock to lock slowly twice.

5. Turn off the engine and pump the brake pedal 5 times to discharge the accumulator, check and refill the fluid.

6. Start the engine and turn the wheels lock to lock 2 more times and check the fluid. If the fluid is foamy let the vehicle sit for the air to purge out.

When you get one and none of your tricks work you have bleed it like NDIHC. I do this with the front wheels off the ground.

Run engine up to 2000 RPM pump brakes like you are mad at it like magic I have seen it start to working.

There are possible other issues.

 

[NDIHC]

This is somewhat common on you truck. It does happen on other vehicles. I agree aftermarket pumps are hit and miss I don't think because it will not work/bleed the pump is your problem. What NDIHC said to do is common for us that actually do this for a living. The reason we go though a bleeding procedure is it does not leave making a noise. Its quick and simple and works most of the time.

There are several ways you can go this Yes a drill, air tool are cordless tool will prime most any P.S. pump it does not have to be high RPM.


1. The hydraulic brake booster needs to be bled.

2. Fill the power steering pump with fluid.

3. Remove the fuel cut off relay and crank the engine for 5-10 seconds.

4. Reinstall the relay and start the engine and turn the wheels lock to lock slowly twice.

5. Turn off the engine and pump the brake pedal 5 times to discharge the accumulator, check and refill the fluid.

6. Start the engine and turn the wheels lock to lock 2 more times and check the fluid. If the fluid is foamy let the vehicle sit for the air to purge out.

When you get one and none of your tricks work you have bleed it like NDIHC. I do this with the front wheels off the ground.

Run engine up to 2000 RPM pump brakes like you are mad at it like magic I have seen it start to working.

There are possible other issues.

Ah, yes! I forgot about the hydroboost brakes! The cars I've worked on for many years have all had electric power steering for around 15 years so I don't automatically think of that.

 

[504]

Bad regulator in the pump and the same parts have been in all of them?

 

[used red MN]

You might try removing the fitting that the outlet hose screws into. This will be under a few pounds of spring tension. Then attempt to test for flow from the pump while spinning it. The pressure relief valve is behind that 1” hex fitting. I don’t remember the exact flow of oil out of the pump and how it acts on the valve and spring to relieve the pressure. With that out there should be nothing to trap air in the pump outlet if that is the problem. As would be obvious once air is out of the way and fluid flow is established fluid should continue to flow once the relief valve and outlet fitting are reinstalled.
Here is a video of the same guy he pulls out the outlet fitting and relief valve at the 25 minute mark. Saginaw pump swap- relief valve

 

[rustred]

It’s not a dumb question. I didn’t know there are pumps that specify ATF.
PS fluid came out of the old and that’s what went back in the new one. Fresh of course

I don’t think they specify ATF. Power steering fluid is what is used. ATF is acceptable also.

 

[300jk]

Posting this here because this is the truck I drag the tractors around with.
Working on a 1999 Dodge 3500 5.9 Cummins 2wd 5 speed. Steering box was sloppy and leaking oil badly. Order a reman along with new Ps pump and a vacuum pump reseal kit.
Take everything apart and put it all back together with minimal problems. Keep in mind the vacuum and PS pumps only go together one way otherwise you destroy the vacuum pump.
Put fluid in and work the steering a little bit to try and get the box to start pulling fluid in. That doesn’t work so I started the truck and let it run for a little bit and absolutely no fluid gets pumped. Bad pump, right?
Three pumps now and the fourth one is new and none of them will pump. I’ve cracked the high pressure lines to relieve any air blockage, put the old hose back on, blew through all of hoses to eliminate any blockages elsewhere and today I took the vacuum pump back off to make sure that shaft was not broken and it’s not.
Cannot fathom four bad pumps in a row even though I know the bad part numbers are up in the industry. Have consulted with the gurus in my area with no results. Hoping someone here has had this same problem and found a solution. I’m am tired of laying under this thing. Thank you
Just to be clear, the issue itself is no PS fluid is coming from the pump
280000 on the truck if that matters in

Let us know how you get it fixed. Gave my advice and many others did. Keep us updated !