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Jared D
Jared D, ASE Certified Technician
Category: GMC
Satisfied Customers: 1766
Experience:  Shop Supervisor at County Fleet
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I have a 1999 GMC Sierra 1500 4x4 my truck has been sittin

Customer Question

I have a 1999 GMC Sierra 1500 4x4 my truck has been sittin for a little while and I went to go move it today and I had lost all my power steering completely even without me driving it
JA: Is the power loss consistent, or does it fluctuate?
Customer: Consistent, it has not came back at all yet
JA: Are you fixing your Sierra 1500 yourself? What have you tried so far?
Customer: Yes I would be fixing it myself, I haven't tried anything yet, figured I would check here before I just start replacing stuff hoping it'll fix it
JA: Anything else you want the mechanic to know before I connect you?
Customer: not really, maybe that before it went I did hear a squeal when I first started it that would last a few seconds then go away
Submitted: 6 months ago.
Category: GMC
Expert:  Jared D replied 6 months ago.


First, check the power steering fluid level. Is it possible that it may have leaked out while the truck was sitting?

Second, if the fluid looks ok, start the engine and then remove the power steering cap to see if it looks like the fluid is circulating in the reservoir. I've seen these power steering pumps fracture the pump shaft off because of tarnish buildup in the pump if they sit for long enough.

Expert:  Jared D replied 6 months ago.

Please let me know if you need additional info. Don't forget to rate.