Question about 2002 GMC Envoy XL

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How do I remove and Replace the power steering pump on my '02 Envoy

Looks like it should be straight forward. The pump is whining and when I try to max out the turning it shutters. This just started a day or two ago. I am assuming it is the ps pump. The noise sounds like bearing gone. Could it be something else?

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  • Contributor
  • 16 Answers

The first thing to do is check the fluid level if it is low it will be noisy also check the belt tension

Posted on Jan 04, 2013

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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: Whinning noise

Bearing going out on alt, power steering, AC, ect. put a long screw driver to your ear them the sharp end on each unit to listen for the sounds it makes.

Posted on Oct 17, 2008

Papa Chan
  • 56 Answers

SOURCE: 2004 4.2 ltr envoy power steering stopped working - no leaking

Most likely the power steering pump is your problem. It sounds like the shaft inside the pump has broken and it is not pumping fluid. I would install a new pump and see what happens. The other option would be the rack and pinion (steering gear). The power steering pump is the cheaper of the two and usually the problem. I hope this helps you.

Posted on Jan 06, 2009

SOURCE: whining power steering pump after changeout

You likely have air in the system, try turning the wheel side to side and checking the reservoir periodically.

Posted on Apr 17, 2009

emissionwiz
  • 75797 Answers

SOURCE: Transmission problem with reverse

the reverse clutch has failed in the transmission, this will require the trans be torn down for repair.

Posted on May 31, 2009

wracefans24
  • 1985 Answers

SOURCE: We had an extreme cold spell and when I started my

Besides the basic hand tools and some curse words,the only tool you will need is a power steering pulley puller,you can pick these up at any NAPA,or Autozone....
you will need it to remove it and to push the pulley on the new pump.

Posted on Dec 17, 2009

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take it to a power steering specialist shop
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Transmission fluid should be bright red. You need to get your transmission fluid changed. Also, the sound that you are hearing when turning and going straight could be your power steering pump going bad, or running dry. When the power steering fluid gets low, the power steering pump tries pumping air, making a growling/whining sound. Try checking your power steering fluid level.
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Whining when i press gas


normally, the only part of your automatic transmission that will make a whining noise is the pump. it usually whines when iether the fluid is low or more commonly when the transmission oil filter is getting plugged up.

the power steering pump will also make a whining noise too.

turn the wheel all the way to the right and hold steady pressure against the stop. this puts maximum force on the power steering pump and, if the power steering pump is the one making the whine, it will change the sound of it. (usually louder).

if the trans pump is making the whine noise, it should sound different in neutral compared to drive. this test will really only work if it make the noise without the vehicle moving. if it wont do it at idle hold the rpms at 2000 or so.

if you decide the noise is coming from the transmission, and the transmission filter has not been replaced (assuming you installed a used transmission), replace the filter by removing the oil pan.



oh and also, if it is the power steering pump you should be able to make it make the whining noise while the vehicle is stationary. if it wont make noise unless its moving its not the power steering pump.

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We had an extreme cold spell and when I started my truck the power steering pump was really growling. Now it's whining and I tried some Lucas additive without success. It is time for a new power steering...


Besides the basic hand tools and some curse words,the only tool you will need is a power steering pulley puller,you can pick these up at any NAPA,or Autozone....
you will need it to remove it and to push the pulley on the new pump.

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