I will have to agree with the others. Above all I feel the best road techs have great communication skills. I personally have taken a Dale Carnegie course on communications. However I was a road tech for 7 years prior to that. If you know what questions to ask and be persistant until you get to the bottom of the problem and can sort through the B.S. then you have a leg up.

Second. You don't need to be a "know it all". Just a healthy understanding of how it works and a natural curiousity along with a side helping of resourcefulness (a get r done) attitude, Makes a great tech.

I have been a road tech for 9 years and just recently moved into a training role. I tell our guys, "this isn't a difficult job as long as you stop to think once in a while. The guys that try to rush through the job without thinking about what the real issues are are the ones having the most problems.