cruise control

last week my cruise control started to not work, sometimes it will most time it will not work, sometimes the light will come on that it is engaged but it does not other times the light will blink and not engage. when it tries to engage you can feel it in the motor and by rpms but it will not stay on. other times it acts like nothing is wrong

There's a reasonable chance you have a bad clockspring causing the issues. Are you also getting an SRS/airbag light?

-Rod

just when i start it and put on my seat belt then after i put it in drive and go it will cut off. doesnt flash or stay on for longer that 30 sec or so also i dont have a problem with any other part just cruise control

if this the clockspring will it cause anymore damage or will anything else go out without warning.

The clockspring should not cause anything to damage further than what the clockspring itself does. You may end up with no horn, no cruise, no remote radio controls, and possibly no air bag. It should not cause the airbag to inadvertantly detonate or the radio to go to full volume, etc.

However, there are multiple contacts of the clocksprings, so more items could begin to fail.

-Rod

took my car back to where i bought it and the mechanic called and said it was a servo motor going bad. I have never heard of tht before

What year is your LS, and which engine does it have?

-Rod

02 v8

On a 2002, it could be possible for the servo to fail. On the 2003 and newer LS, the speed control servo does not exist, it is integrated as part of the "drive by wire" throttle motor.

-Rod