1997 Chevy Suburban 97 Suburban Steering jumps during a sli

Tiny
JRLEHNARDT
  • MEMBER
  • 1997 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 132,000 MILES
My 97 suburban has been starting to act up when steering. In a turn whether it is high or low speed, the steering wheel will pulse or jump a little in the direction i'm turning and the car turns a little more when it happens. It has been worsening and becoming a harder pulse as time has gone on and will almost jump the car into another lane when lane changing. It doesn't seem to happen durring a hard turn but on like an on/off ramp or changing lanes. I also have been experiencing durring excelleration the steering kind of shimy a little, it feels like the wheels are out of balance but I just had that done when they were rotated. I am concerned of course that it will get worse and at some point I won't be able to keep the car under control. I flushed out the power steering fluid multiple times which was black and replaced the fluid and added an additive to help condition the seals. But it is still happening. What could it be and how do I fix it.
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Saturday, January 5th, 2008 AT 3:05 PM

3 Replies

Tiny
JACK42
  • MEMBER
Some of those Sub's had variable rate power steering, called EVO. I take it the front end is sound mechanically? Good tires? Properly aligned? Does this Sub have a lift kit?
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Sunday, January 6th, 2008 AT 8:24 AM
Tiny
JRLEHNARDT
  • MEMBER
It does have the EVO, just had the tires rotated and balanced, less than a year old on stock tires and it does not have a lift kit. Allignment is slightly off but hardly noticeable.I hope this helps narrow it down, please any suggestions would help.
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Sunday, January 6th, 2008 AT 5:02 PM
Tiny
JACK42
  • MEMBER
Without verifying the p/s pump pressures, I have replaced a few of the steering wheel position sensors for EVO problems, just not like you describe.
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Monday, January 7th, 2008 AT 7:08 AM

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