OEM Scion Fuel Tank

Scion Fuel Tank Parts and Q&A

• Fuel Tank
  77001-21101
  Q: How to service and repair the fuel tank on Scion tC?

  A:

  Start tank fuel service and repair by taking away the fuel tank main tube sub-assembly from its connections with the fuel tube clamp and tank suction tube support. After removing the air vent fuel hose from the retaining clamp you should pinch the tab to open the claw locks before pulling the hose from its pipe while checking for any foreign substances or dirt buildup on the connector. Every disconnection should happen by hand rather than use tools and always protect parts with plastic bags while avoiding both scratches and foreign object introduction into the parts. Users should avoid force when dealing with stuck hose connectors and pipes by instead applying gentle forward and backward movement. Start by unclipping the three floor wire clamps and the floor wire before unclipping the clamp and letting the two claw fittings escape from the fuel tank protector plate. To proceed with the next steps, clamp the tank suction tube support without the clip fittings and break the No. 3 fuel tube clamp by parting two clip fittings before disassembling the No. 4 fuel tube clamp by removing its bolt. Detach the No. 1 fuel tank cushion by removing each of the ten cushions from the fuel tank. During assembly install new fuel tank cushions on the tank before tightening the No. 4 fuel tube clamp with its bolt at 6.0 N.m (60 kgf.cm, 53 in.lbf). Fit the clip positions to install the No. 3 fuel tube clamp together with the tank suction tube support. The floor wire installation requires positioning the claw openings to secure the fuel tank protector plate before adding the wire harness clamp and using three wire harness clamps to fix the floor wire. To attach the fuel tank vent hose users should position the hose connector against the pipe before pushing it towards the seat until it reaches the retainer position for claw locking. Check that the connected part of the fuel tube connector and pipe retains a secure connection by pulling on the hose connector and pipe before fitting the fuel tank main tube into the fuel tube clamp and tank suction tube support.
• Fuel Tank
  77001-52170
  Q: How to remove and install the fuel tank on Scion xB?

  A:

  Removal of the fuel tank requires disconnecting the negative cable from the battery and draining the system pressure then waiting at least 90 seconds to avoid Air Bag and seat belt pretensioner activation. Begin by taking out the rear seat cushion assembly then the support bracket alongside the floor service hole cover and fuel pump tube assembly and No. 2 fuel evaporation assembly. After you drain the fuel you should disconnect the No. 2 and No. 3 parking brake cable assemblies by taking out their bolts and unclipping the cable clamps. The repair process starts with removal of the No. 1 fuel tank protector through clips and bracket disassembly then continues with fuel tank assembly separation from the fuel tank to filler pipe hose along with the removal of fuel vapor hose and fuel tank vent hose. Disconnect the fuel pump tube following connector cleaning from around the connector region before placing both components into a protective plastic bag. The first step requires the removal of four bolts securing the fuel tank followed by the removal sequence of the fuel pump tube sub-assembly alongside the No. 2 fuel evaporation tube sub-assembly and the No. 3 fuel tube clamp and check valve protector and check valve support. First disconnect the fuel tank inlet valve assembly, No. 1 fuel tube clamp and the fuel tank side plates before unfastening the clamp and extracting the fuel tank to filler pipe hose. Start by placing the fuel tank side plates followed by the No. 1 fuel tube clamp before installing the new gasket fuel tank inlet valve assembly while being cautious of resin valve damage. Follow bolts installation of the check valve support then torque it to the recommended level before welding the fuel tank vent hose and No. 2 fuel evaporation tube sub-assembly together followed by checking valve protector installation with bolts. The installation process requires attaching the No. 3 fuel tube clamp followed by placing the fuel pump assembly along with the fuel sender gauge assembly while connecting the No. 2 fuel evaporation tube sub-assembly then finishing off with the fuel tank vent tube set plate bolt. Fasten the fuel tank assembly using four bolts and verify the torque while connecting the fuel pump tube with fuel tank vent hose and fuel vapor hose and new fuel tank to filler pipe hose through clamps. To finalize the procedure you must install the No. 1 fuel tank protector then join the No. 3 and No. 2 parking brake cable assemblies after which you should put on the exhaust pipe assembly and re-establish the cable connection to the negative battery terminal lastly add fuel before testing for leaks and replacing all components starting with the rear floor service hole cover and continuing with the rear seat cushion support bracket and rear seat cushion assembly while finalizing with exhaust gas leak checks.