Question about 1997 GMC Safari

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Drunken steering I have a 1997 Safari with hydraboost steering or adaptive sterering the first Year they put this in the Safari. After 150,000 km the truck started wandering, etc. I have had three of these trucks earlier years, one lasted me over 400,000 KM so I know about loose sterring this truck is different. On the Hwy, there is a big dead zone in the steering, on corners, it feels a bit over steerie, I have replace everything except the sterring box iteself, any ideas? Is there a sensor for this type of adaptive sterring, if so I have not been able to locate it? Any help would be great I only have 187,000 km on this truck and if I can not fix it I will sell it. But I love this truck.

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  • walterk464 May 13, 2009

    I have had 4 new sets of tires on this truck and all tires had this problem. Always inflated to proper PSI.

  • Samuel Charles Spriggs May 11, 2010

    How many miles on the tires? Do you keep them inflated to proper pressure?

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This system has an electronic variable orifice steering system. There is a sensor on the column at the base, it is a 3 wire sensor. This sensor will give you the tight or loose feeling. It is easy to change with basic tools. The orifice this sensor controls is a 2 wire solinoid on the pressure port of the power steering pump. If you have changed the pump look to be sure you still have this 2 wire solinoid. Good Luck.

Posted on May 13, 2009

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