I have 1984 z28 and at low RPM i have trouble turning the steering wheel, but once i rev the motor up a bit it gets easier to turn. The power steering fluid isnt low and the belt is tight. Is this the power steering pump or is it something else??

 

I have exactly the same problem. Any solutions? I tried searching the forums and I found yours

 

It is possible that the pump is not producing enough pressure to provide enough assist. A buddy in a shop would be nice to have so you could get access to the proper gauges to check it. The readings are very high, it does require a special gauge. There are some things you can check, but nothing that will give you the definitive answer you are looking for.

 

I'd start there. Welcome to the site, by the way.

JamesC

 

So what are some possible causes, other than just a bad pump? Would loose belt tension cause this? Would a problem in the steering box cause these symptoms? What are some of those checks I can perform? I'd like to rule out as much as possible before I undertake the job of replacing the steering pump.