i was driving all of a sudden motor started puttering couldnt go over 20 mph got it home let it idle radiater cap blew off no signs of blown headgasket replacing radiater tomorrow no check engine light is on it anyone else have any suggestions motor runs great untill it warms up

 

ctrl+alt+del

sounds like many problems

 

It could be a vaccum hose thats lose , check your hose if you have a aftermarket intake system.

Could also be a bad O ring in the disturbutor cap, thats common and leaks oil into the cap.

Could be a few other things but check visually