[HO455]

Originally Posted by 2112

I have been having an issue with my 72 c10 with a 307 and 2 barrel carb. It will start up fine and run great until it gets up to temperature. After a few minutes it just shuts off. If I try to start it again the ignition is dead and acts like the battery is dead. After a few hours it will start right up no problems and shut off again after a few minutes. Seems like something is shutting down once it gets warm. Anyone have an idea as to what it could be? Thanks for the help!

When it dies there are some things to check.
Does it have spark? Check it with a plug grounded or a spark tester.
No spark. Check voltage to the distributor.
Good voltage. Then pull the coil from the cap and inspect the condition of the connectors. While there take ohm readings on the coil. But remember they may indicate good once the coil has cooled.
I would then inspect the interior of the distributor and if nothing stands out then would test the pickup coil. Disconect the coil and with an ohm meter check each lead to ground. Should be infinite resistance. Then check continuity between the leads it should not be zero but somewhere between zero and infinity. The hard part of this test is that once the coil has cooled it may test okay. The same thing with the HEI control module.

Some links that may help you. And like everything on the internet suspect.

https://www.chevyhardcore.com/news/h...-distributors/

https://www.jalopyjournal.com/forum/...module.706237/

If you have spark then check for fuel in the float bowl by winging the throttle while looking down the carburetor. You should see a stream of fuel being shot into the engine every time you wing the throttle. If not then you have a fuel supply problem.
If you have fuel and spark then it is time to look for a carburetor problem.

Good luck and keep us apprised of your results.