94 Chevy Suburban runs 1 minute and then shuts off suddenly with no warning like a switched was flipped to shut it off on purpose. Started this after installing a NEW heater core 2 wks ago. Does it driving the freeway, going around corners, or in the driveway parked at idle. Sometimes it waits 7 min. bf shutdown or does it at 30 seconds. Starts on starting fluid then can travel a block bf shutoff. Fuel pump and everything else is OK. Does not like ZERO temps or below. the Zero temps and heater core arrived the at the same time and then this new problem. Was a wire touched somewhere installing the heater core?
Sandra
This is an electronic engine control problem do u have any system fault codes? u need to check them, here is how to do that, go to the link.
http://check-engine-light-codes.blogspot.com/2006/03/gm-1983-95-vehicles-obd1-codes-self.html
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