2005 GMC Sierra power steering problem
 

In October I had the power steering pump replaced due to the reservoir had a crack that was leaking. I changed the high pressure line also. I also changed the steering gear box due to a catch in it. I bought all the parts from advanced auto. The first pump lasted 4 weeks, it just stopped working. The next pump blew the return line off twice. I changed that pump and the gear box just to eliminate that as a problem. This pump lasted a couple of weeks then it blew the return line off again twice. I replaced the pump 3 weeks ago then, this morning I remotely started the truck and when I went out 5 minutes later it had blown off the return line. I went to autozone and got a pump from a different manufacture. I installed it and it blew the return line off. I have no idea what to do now. I blew out the cooler with air and it seemed not to be blocked. Thanks for any help

Are you using the original spring clamp on the return line? Over time they get weak. Use a gear type hose clamp. If you have a gear clamp on it, you will need a power steering analyzer to check pressures/restrictions/blockages.

I actually did install a gear type hose clamp. I drive it again tomorrow and see if the new clamp holds. Thank you for your help