how do i test an ignition module in an 82 5.0 blazer 4x4?

Question

the truck sat for 4 days and when i went to start it it wont stay running it shuts on and off like your turning the key on and off

Answer 1

Remove the ignition module and have Auto Zone check it out for free.If you can manage to get the vehicle there.Have a diagnostics test done also for free.Does not sound like the problem is with your ignition module,but most of the times it is caused by the MAP Sensor.