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 1:41 AM
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DOCFIXIT
  • ✓Experienced Mechanic
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Remove return line to flush also return line maybe partialy blocked starving pump causing groan
Oct 23, 2009 at 3:37 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 3:01 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 6:08 AM
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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 11:08 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
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 6:28 AM
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