I recently rebuilt the vaporizer and checked the fuel pressure at the big plug on top, pressure holds a steady 4.5 psi but I can hear whooshing thru the hose going to the injector holder. This is the first time attempting to rebuild the regulator and don't know if it's a straight parts swap or is there an adjustment on the lever or diaphragm.
Could the fuel be passing through the injector?
After rebuilding the regulator, the truck started and ran and fuel pressure was a steady 4.5 while running. Next day no start. I don't want to just throw parts at this truck.
Someone have this happen to them?