New Guy needs Help

[Camoman]

Hi all!
I just bought a 1999 2dr turbo diesel Tahoe Yahoo!
The first concern is it feels like its hard to steer even on the highway to change lanes? But once you go left or right it get somewhat easier but not like typical PS. The guy I bought it from said thats normal I don't think So!
Any suggestion??

Oh This site look like is going to help!
I look forward to modifying it over the nexgt few years!

 

[SunlitComet]

Sounds like the steering evo system as described below.

"The Electronic Variable Orifice (EVO) system increases or decreases the amount of fluid leaving the power steering pump. This provides the driver with a comfortable balance of steering wheel feel and power assist.
At vehicle standstill or at very low speeds, the system allows full hydraulic fluid flow for maximum power assist and reduced steering effort. As the vehicle gains speed, a variable orifice closes at the steering pump which reduces the pump fluid flow. This action provides a stiffer steering wheel response for an improved road feel and a greater directional stability at highway speeds.
A sensor mounted on the steering column detects the steering wheel movements associated with defensive driving maneuvers. A control module uses this sensor input and the vehicle speed in order to adjust the amount of current to the solenoid."



It can malfunction and become more easier or difficult to steer tho at times. Nothing that can't be repaired or even bypassed. Otherwise does the above description describe your issue?

 

[Camoman]

Sounds like it!

I am not sure but My orifice just got something stuck up it! Ha Ha.
I should have joined and asked this quetion before I bought! I could have saved myself some Green! Oh Well as life goes live and learn!
Whats your best guess on cost to replace the system?

And thanls for the quick reponse! Wow!
CM

 

[SunlitComet]

Replace what part exactly? You want to fix it or just bypass it?

 

[Camoman]

Not Sure

My guess would be to fix it??

 

[SunlitComet]

There is some shops that have a good snap on scanner or OTC scanner or even a dealers Tech2 that can scan the steering system for any codes that may exist. That would be the ideal starting point among other things.