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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Engine Removal, Overhaul & Installation - Crown Victoria - NGV) >> Fuel Systems >> Compressed Natural Gas Fuel Tank Venting >> Fuel Tank Solenoid Valve Stuck Open

Fuel Tank Solenoid Valve Stuck Open

WARNING: This page is about a different car, the 2002 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Vehicle may have optional additional (rear) tank assembly in trunk.
  1. Release fuel pressure from lines. See COMPRESSED NATURAL GAS FUEL LINE VENTING  . To vent fuel tank, turn in manual lockdown valve jackscrew on fuel tank.
  2. Connect grounding cable to fuel fill valve. Connect fuel filler neck venting kit to fuel filler valve. Connect hose between filler neck venting kit and vent stack that allows natural gas to be vented outside of repair shop. Vent stack must be approved by local authorities.
  3. Slowly open manual lockdown jackscrew on fuel tank solenoid on tank to be vented. See Figure . Slowly open manual backflow valve on fuel filler valve. Observe gauge pressure on fuel filler neck venting kit. Tank pressure should be indicated.
  4. Slowly open bleed valve on fuel filler neck venting kit and allow contents of fuel tank to vent to atmosphere. Venting could take in excess of one hour. When tank is exhausted, close bleed valve on fuel filler neck venting kit.
  5. Release any residual pressure from fuel rail. See COMPRESSED NATURAL GAS FUEL LINE VENTING  . Repeat procedure on all affected tanks.
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