could well be the starter solenoid overheating, a rest while you got to jumping it let it work again .... Chev starters are prone to bad behaviour when hot, especially the cheap ones wink

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot