Manual transmission. Usually starts first try even though I only use it a dozen times a year. Started the truck yesterday after not being used for months and it started and drove fine. Today it won't start. Engine won't even try to turn over. Just makes a single "click" noise when I turn the key.
Voltage test shows battery has 12+ volts. I cleaned the small amount of debree off the distributor cap. Then I replaced the starter solenoid. Still has same symtoms. What should I try next?