You might have a safety system that shuts the system for the engine off if the oil pressure is low. So, you might have a clog in your oil circuit or an a problem that is intermitant with the oil pump. Sometimes if the truck is running roung the pressure will drop low enough to have the pressure light come on as the pressure threshold is set to go off with just a small drop.
You might also have a failing oil pressure switch.
July, 5, 2012 AT 3:50 PM
Did you check the oil level?
Lynn from sc
July, 5, 2012 AT 6:08 PM
I do have a safety system that cuts off to insure no damage is done to motor. I did check the oil and it was about 1 quart low. I added oil but no change in the way the truck is running.
July, 5, 2012 AT 6:44 PM
You would need to test the pressure switch and oil pressure.