After spending a great deal of my own time (and that of my mechanic friends in the neighborhood) trying to diagnose my non-starting engine problem, Ken at Davis fixed it by simply replacing the cap and rotor (which I could have and should have done myself). I was surprised that was all it was, since I had replaced the cap and rotor just 16,000 miles ago, and I tested all the spark plugs and they were all firing. Apparently there was some kind of electrical leak down through a carbon trail in the rotor. Even though it cost $240 for Ken to figure it out and fix it, Ken had to spend time eliminating other possible sources for the problem. It was great news that it wasn't something more serious and really expensive, as I had feared. With a 1990 GMC van with 263,000 miles on it, it's hard to justify putting too much money into it. Now, instead of hauling it off to the crusher like I was considering, I have an operational van that I can use for some utility projects coming up. This is the second time Ken has bailed me out with his great diagnostic skills. For the next problem in the future, I'm sure I'll try to figure it out myself, but I'd like to think I'd bring it to Ken a little sooner, before I get quite so deep down the rabbit hole!