Bad ecu on 95 suburban

Answer 1

You have to look at all symptoms. There is a real good chance that your ECU is malfunctioning if: - Vehicle, after running fine for a while, suddenly dies with no idications of impending failure. If the car dies after just 2 or 3 seconds, it's more likely that it would be a security issue - After engine dies, vehicle is experiencing 'complete' electrical shutdown, meaning no radio, no dome lights, no click sound when you turn the key, no clock..no nothing ...just dead. -After a few minutes, say 10 to 20, the vehicle starts again and runs with no problems ...at least until the next identical episode. Could be a couple of hours, could be days or even weeks. - All battery/elec connections have been checked and verified that they are all good...no loose wires...solid ground. - Alternator and Voltage Regulator have been checked out, and are functioning properly. If all these symptoms occur, you very likely need to replace your ECU. It's and easy parts swap, and they're available at your local auto parts store for $150 or less. Hope this helps, CD