I installed my new pump yesterday. It's the 5th time I've done the install since the previous 2 replacements were no good I just kept putting the old leaking one back on.

Anyways the new one is working just fine but seems to have a low whine when the wheels are straight and the noise increases with rpms, no noise when turning though. I've bled and bled and can't get a single bubble to come out now.

My bleed method is: crack the bleeder until constant flow. Then I lift the tires off the ground and attach a clear hose to the bleeder and run it back into the reservoir and start the motor. I let it idle for a few minutes then turn the wheel from 10 to 2 for about 5min and then lock to lock for about 3min. Then repeat.

Maybe I'm just paranoid now from replacing it multiple times but should I be able to hear it faintly over the motor? I'm off at college away from my other D2 so I can't compare for a while. Any tips guys?

 

This is how I do it:

1)Find a small wrench that fits the bleed screw and keep it near by

2)attach a clear hose to the bleed nipple and run it down to the ground into a catch container.

3) take off the lid to the reservoir, make sure it's full and start the truck.

4) once warm (around 160 and above) I take the wrench and very carefully reach my hand down between the intake tube and the fan and get ready to open the bleeder.

5) With a helper, have someone start to turn the steering wheel in one direction while you open the bleeder. Once they reach the fully lock position have them hold it there for 2-3 seconds and close the bleeder. (don't hold at full lock for longer than 10 seconds). Once the bleeder is closed tell them to start turning the other way. Open the bleeder again before they reach full lock in the other direction and close it after 2-3 seconds at full lock.

6) Top up the reservoir. You can usually open the bleeder 2 times before it needs a refill, but if you open it full blast then it can drain quick so keep an eye on it and never let it get low or it will suck in more air.

7) repeat steps 5, 3-4 times and you should be air free and have all fresh fluid in the system.

I hope this helps.

 

Thanks man. That seems pretty similar to what I'm doin now I just haven't thought to close it while it's in full lock. Maybe I can find a helper sometime this week.

My old pump primed up like a champ each time. I was expecting the same from the new one.

When it's fully bled do you hear the pump at all?

 

I just went to pick up my wife and I think I may have heard the "whine" you are talking about. I heard a very very slight whine sound at idle and the wheels straight, but when I barely moved the wheel in either direction and let go and listened, it went away. Is that kind of what you are talking about?
It might be normal if it's a very slight whine sound. My bad pump made a noise while accelerating but not my new one, so you still may have another problem.

Another thought:
Did you use a torque wrench when tightening the 2 bolts and nut for the PS pump? If you over torque the bolts it will compress the pump and make it harder to turn. How hard is the PS pulley to turn by hand? I just changed mine and it had some resistance but I could still turn it with one hand. My bad pump I could turn without much effort.

 

I think mine is a similar situation. No I didn't use a torque wrench, but didn't get them super tight for fear of that. There was a noticeable increase in resistance comparing the new pump to the old one. I really think I may have a little more air in it still be stubborn. Gonna try and do a little more bleeding this week. Someone may chime in and call me stupid but would maybe a 1/3 bottle of Lucas maybe quiet it down a little and keep it smooth? I've had good luck with it before and I'm still planning on bleeding more, just didn't know if a little would help it at all in the long run.

 

That's what I use. The Lucas PS fluid with conditioners