i have a 2000 tahoe new body style that i cant figure out my wondering and rough ride hubs are tight all new ball joints tie rods and pit man idler arms with bracket aligned a few months ago with all these parts ...fresh bilstein 5100 front shocks ..rear shocks are a little soft but dont appear to be leaking but will be changed in the next month as well ...i dont see a switch on the back of my ps pump so it shouldnt be the sensor on the steering shaft..just wondering if anyone has any ideas suv has 112k on the clock