B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Fuel Pressure Release: Service and Repair
1. Remove the Shrader valve cap and attach Fuel Pressure Gauge SST 49 UN01 010.
NOTE: Open the manual valve slowly to relieve the system pressure. This may drain fuel from the system. Place fuel in a suitable container.
2. Open the manual valve on Fuel Pressure Gauge SST 49 UN01 010 and relieve the fuel pressure. This will drain some fuel out of the system. Place
fuel in a suitable container.
