Ive got a 95 4dr 2wd 4.3l blazer.
The car starts right up and drives fine but after driving for awhile and trying to re-start it wont until it cooles down awhile. ive replaced the thermostat and it operates at 190 constantly and never gotten over 210. Any suggestions? thanks for your time.

 

When the vehicle is shut down, active cooling of the engine stops. (Heat soak) It actually gets hotter under there for a while. I suspect its going to be an ignition module or another electronic component that is on its last leg.

Thats the best I can do, but look electrical. My opinion only.

 

thanks ill look into it

 

Way to check that is stick a plug on the coil output and see if you have good spark during cranking.

Also.. just a wild guess.. but get a Fuel Pressure gauge and check leakdown.. have a feeling pressure just MIGHT be dropping fast.
And your situation may be the classic example why leakdown rate is important in the 4.3 W