power steering pump vibrating

[Brandon95Z71]

So last weekend i replaced my alternator and belt cause they were shot. I noticed that after i did that when i turn my ac on now my power steering pump vibrates erratically. It only does this at idle and when i turn the ac on otherwise it doesn't do it. If anyone has ever had this problem or might know what the cause of it is id appreciate the advice. Thanks

 

[DGA1]

Can you grab the PS pulley by hand and move it? If so I'd say it's shot...

 

[FastOrange]

what year truck?

 

[Brandon95Z71]

Can you grab the PS pulley by hand and move it? If so I'd say it's shot...

I don't have time right now to take off the belt but i couldn't wiggle it back and forth while it was on and it only does it when i turn the a/c on. I also noticed that my a/c compressor gets really hot quick?

 

[Brandon95Z71]

what year truck?

Sorry 95 k1500 w/350 tbi

 

[MOBS]

Does the pump/pulley move up/down/left/right, or do you mean the pulley has a wobble to it? It could be your ac compressor needs more oil added to it and the shaking it's causing could be the compressor trying to lock up....it's worth a shot to hook a new oil can to the compressor and see if it helps any.

 

[Brandon95Z71]

Does the pump/pulley move up/down/left/right, or do you mean the pulley has a wobble to it? It could be your ac compressor needs more oil added to it and the shaking it's causing could be the compressor trying to lock up....it's worth a shot to hook a new oil can to the compressor and see if it helps any.

The pulley itself doesn't move but ill have to take the belt off this weekend to know 100%. While idling the pulley looks like it kind of has a wobble to it but its always been that way since i got it and i had to bend a couple of spots on it back cause the original owner must have pried on it at some point in time so it bent the back in on a couple spots and chewed off a rib on the belt. It never did this until i replaced the alt and belt. You can feel how bad the power steering pump reservoir vibrates when the a/c is on.

 

[GMCTRUCKS]

Check maybe the bolts to the pump are loose.

 

[Brandon95Z71]

Ill have to check them this weekend but im still stumped as to why it only did this when i put a new alt and belt on and not the day before with the old stuff?

 

[FastOrange]

Ill have to check them this weekend but im still stumped as to why it only did this when i put a new alt and belt on and not the day before with the old stuff?

did ya put the proper braces back on?