New fuel pump, won't turn on.
1987 gmc sierra with fuel tanks. Fuel pump was intermittently turning on. Swapped with new kne, turned on once and now will not turn on at all. Connected to external power source and it turns on. Placed a test light in connections and seems to have necessary power. Someone suggested the ignition control module could be an issue. Lost and not wanting to tow this to a GM dealer so they can bleed me dry.
