TRUCK TURNS OVER BUT WONT START AFTER DISCONNECTING THE BATTERY
1990 Chevrolet Silverado
February, 13, 2012 AT 5:26 PM
It gets gas and seems to get weak spark. Replaced battery, coil, cap, wires, rotor, ign controle module, coolant temp sensor, idle control valve. After it sits for a few hours it will start but only after turning over for an extremely long time then starts runs rough and blows out black smoke "relearns" and then runs fine. Engine runs like new except after disconnecting battery.