can still be a bad battery, especially with that much time on it. Enough juice to run lights, but not enought to turn starter or even click. I had a 4 hour argument with a friend who had the exact problem you describe. I told him battery, he said no way. Cost him $75.00 to have it towed in, & they replaced the battery. Pull the battery & take it in and have it bench/load tested, usually free at most parts stores.
