Need help with odd problem on 89 Blazer
 

Hello again gang. I finally got rid of the dual glass packs and echo chambers, put a standard dual exhaust on it. The whole time I"ve had the truck I have thought that the power steering pump was making the loud noise I had been hearing. I put a brand new power steering pump on it and it sounds the same. The noise is on in idle, while doing down the road, or sitting still. The truck always makes the noise. The noise is just like a bad ps pump when you turn the wheels, it just is on without turning the wheels. It is on as soon as truck starts. What else could it be that would make it that loud. Thanks.

Does the sound remain if you remove the accessory drive belts?

I will try that when the snow lets up!
 

Thanks!