[perna00]

same problem with my old cavailer. it's the ignition module. when your car heats up it will seperate the malfunctioning connectors on the board and stall out your car giving no spark signal. after the car cools down to make the connection again (5-60 minutes) it will start again. part is $150 from autozone. it can't be diagnosed on the checker cause it doesn't get hot enough unless it's run in the actual engine compartment.