[aigel]

^^^

Heat soak of the starter. The resistance goes up with temperature, and now, with the same voltage applied, you don't flow enough current to move the solenoid switch.

It may be connections as well, which would limit current as well and combined with a heated solenoid, it may push it over the edge.

That said, I never had this turn out to come from poor connections. It was always the starter / solenoid.

G