Starts, idles for a few seconds then quits. on 1995 GMC Vandura 3500

I just replaced the fuel filter, EGR valve, PCV valve, and Engine Coolant Sensor. There is a very loud suction sound coming from carburator (Fuel Injected). Engine starts, idles for a few seconds then quits. What could it be?

Asked by for the 1995 GMC Vandura 3500
0 answers