2005 Chevy Silverado Power steering noise

2005 CHEVROLET SILVERADO
128,765 MILES • V8 • 2WD • AUTOMATIC
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RICK LOREN
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I replaced my PS pump ( 3 times), becasue it was starting to groan. The first pump made the same groan, I reflushed the system and it seemed queit till I baced it out of the garage, then it started again. I then got another one. I flushed the system again. This one was quiet, but shortly after, it would lose the power asisst. I went for one more, and went back to the groan. I also replaced the hose, from the pump to rack, and flushed it out again.

I replaced my PS pump on my 1999 Silverado, with no problem at all, it was making noise at around 101K.

All my parts were coming from NAPA. Am I not bleeding the system right?

I'm about ready to get a new pump from the dealer
Oct 23, 2009 at 8:41 AM
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DOCFIXIT
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Remove return line to flush also return line maybe partialy blocked starving pump causing groan
Oct 23, 2009 at 10:37 AM
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RICK LOREN
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[quote:4c37e9c4ec="Docfixit"]Remove return line to flush also return line maybe partialy blocked starving pump causing groan[/quote:4c37e9c4ec]

Did this and replaced return line from cooler to gear, still have groan.
Oct 30, 2009 at 10:01 AM
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DOCFIXIT
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Is steerinf effort increased? does wheel bind ? Is noise diffinately from pump not steering box? Has ball joints been checked for binding?
Oct 31, 2009 at 1:08 PM
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RICK LOREN
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NONE OF THAT HAPPENED WITH ANY OTHE POWER STEERING PUMPS.

i TOOK IT TO THE DEALER, THEY REPLACED IOT WITH A NEW PUMP AND IT WORKS FINE.

I HAVE TO BELIEVE THAT THERE WAS A PROBLEM WITH THE NAPA PARTS.

WILL RETURN THE LAST PUMP AND HAVE THEM CROSS THE GM PARTS NUMBER TO SEE IF THERE WAS ANOTHER PUMP AVAILABLE.
Nov 2, 2009 at 7:08 PM
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DOCFIXIT
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You certantly have cause to suspect NAPA pump return and notify of concern. They need to let jobber know of defect after 3 pumps they owe you some compensation.
Nov 3, 2009 at 2:28 PM