Power Steering - Still Bad After Bleeding

[okhall]

I purchased a new power steering pump for my 94 GMC Sierra, 4 WD, 5.7L. My steering was still bad when I installed it so I bled the hoses. When I have the pickup jacked up, I can steer easily with my fingers. But when I tighten the hose, then take it on a test drive the steering is still hard. Is it my bleeding technique, or my pump, or other? What is my remedy?

[pm26]

I believe the way you purge the air out of the system is by turning the steering wheel from lock to lock several times while the engine is running.

[okhall]

I believe the way you purge the air out of the system is by turning the steering wheel from lock to lock several times while the engine is running.

[okhall]

I've done that. The steering is easy while the pickup is jacked up. I can steer it with a finger. But once it is on the ground again it is hard to steer again. Is this a two-man job. Do I need someone to close the hose while the vehicle is being steered all the way on either side? I have been doing it by myself, jumping out of the pickup and tightening the hose.

[pm26]

Do you have the shop manual for the truck? If not, google "power steering bleeding". You should find plenty of illustrated instructions how to do it properly.