Intermittent Loose Steering

[codemonkey]

When driving at any speed my steering will suddenly "slip" and get loose in the direction I am turning. It only lasts a split second. It drives straight otherwise.

 

It happens mostly when changing lanes or veering in either direction. Sometimes I fear that the "slip" will cause me to over compensate at higher speeds.

 

Any clue what could cause this? Tie rods? Power steering?

 

1997 GMC Yukon GT 5.7l 2dr

[Draenor]

EVO sensor.

It's under the dash, where the upper shaft (steering column) meets the intermediate. It's an enclosed white ring.

[leboyd]

EVO sensor.

It's under the dash, where the upper shaft (steering column) meets the intermediate. It's an enclosed white ring.

 

Draenor,

 

I changed my EVO sensor a few months ago and am having the same problem. Is there a method to test this sensor? Is there any way the steering box could have a problem (no accidents with the vehicle)?

 

THX,