Problem solved (wouldn't start when warm, fine if cold or hot). Believe it or not: bad bearing in the air conditioner. Disconnected the pulley & it was okay. Air conditioner assembly now has been replaced for a week, and it is cured. (after over a year of never starting when warm) Thanks for bei...

Still it seems odd: once the engine is hot, it starts perfectly. (Thanks for the response!)

This is slightly different that other "won't start when warm" descriptions. This one won't even try to start when warm. Starts instantly if cold or hot, but when when just warm, nothing happens at all. Doesn't crank over, just a slightly audible click. Have to wait a half hour. Any ideas?