2002 GMC Envoy power steering failure

Tiny
PAUL PANZEGRAU
  • MEMBER
  • 2002 GMC ENVOY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 125,010 MILES
Power steering very hard to turn
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Monday, December 22nd, 2008 AT 12:13 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Check fluid level in PS pump resevour, if OK, then check for leaks in pressure and return lines.
Generally the PS pump will make a whining noise if low.
If no leaks and fluid level is good, I would check outer tie rods. Raise car put on stands and see if wheel is hard to turn, if so, you may be looking at a rack problem, tie rods, ball joints, OR booster vacuum leak, leaking diaphram. To check diaphram, hook up vacuum gauge pump and see if it holds vacuum.
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Friday, January 2nd, 2009 AT 6:31 AM

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