SDJHAWK Posted July 31, 2009 Share Posted July 31, 2009 Good Afternoon Everyone,I am new to this forum and am hoping that you can help me out. I have a 1993 Mack CH 600 with 780 K. For the last 500 K the cruise control will kick off. I am able to re-engage it by hitting the resume button, sometimes it stays on sometimes it kick off again. Sometimes I can go for 10,000 miles before this happens, sometimes its 3 miles. There does not seem to be any situation that this is associated with, like going up a hill or a particular speed. The shop foreman at out local dealership, who has worked on the truck since it was new, has replaced everything he can think of including the wiring harness. Nothing has worked, I have spent thousands of dollars and we are all baffled. Please let me know if anyone has any question or can help me out. Quote Link to comment Share on other sites More sharing options...
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