gmc
 

Help! 1985 gmc c-3500. m code 350. have had several no start mornings. turns over fine. carb. supplies fuel and choke closes. replaced: coil,wires,cap,rotor and plugs. Will start and run fine all day, when it wants to. Can the Ignition module
malfunction when cold and then perform fine rest of the day? It has never stalled once it starts.