F 250 2WD Pickup V8-5.4L CNG VIN M (1999)
22. Install the fuel tank solenoid manual lockdown valve.
23. Turn in the manual lockdown valve jackscrew on the fuel tank solenoid valve.
24. Repeat the procedure until all affected tanks are vented.
Solenoid - Stuck Open
1. Connect the grounding cable to the back side of the fuel fill valve at the fuel line connection.
NOTE
-
Solenoid diagnostics must be completed on all tank solenoid valves prior to venting.
-
All fuel tank solenoid valves must be in the locked down position.
2. Connect the grounding cable to the ground rod.
