Toyota 77740-04020
Vapor Canister

The first step in installing the charcoal canister assembly involves connecting the fuel tank vent hose by positioning the connector with its pipe while pushing until the retainer engages while confirming there are no scratches or foreign objects on the bare components. Change the charcoal canister assembly by applying a bolt then two nuts before tightening it to 20 Nm (204 kgf-cm, 15 ft-lbf). The EVAP tube needs to be connected to the corresponding connector. After sealing the breather hose to the charcoal canister using its clamp, workers must install charcoal canister filter No. 2 with one nut torqued to 20 Nm (204 kgf-cm, 15 ft-lbf). Affix the breather hose to the piping system after setting EVAP pipe into the clamp position. The ABS wire harness requires installation of a clamp with a bolt tightened to 14 Nm (142 kgf-cm, 10 ft-lbf). Connect the fuel tank assembly and then link the fuel tank main tube with the fuel tank return tube before utilizing a 3.9 Nm (40 kgf-cm, 35 in-lbf) torque on the negative battery cable. Verify the fuel tank for presence of leaking fuel after installation.

The first step to remove the Evaporative Emission Control Canister is to discharge fuel system pressure. First disconnect the cable from the negative battery terminal following the removal of fuel tank main tube and fuel tank return tube connections. The removal of fuel tank assembly needs to be completed at this point. You must proceed with removing the charcoal canister filter No. 2 after first taking off the bolt and ABS wire harness clamp from the charcoal canister and then freeing up the EVAP pipe from the hose clamp and disconnecting the breather hose from the pipe and decoupling the hose clamp before disconnecting the breather hose from the charcoal canister and finally unscrewing the nut and discarding the charcoal canister filter No. 2. The charcoal canister assembly demands two steps: disconnecting the connector while separating the EVAP tube before eliminating the bolt and two nuts to extract the charcoal canister. Divert the fuel tank vent hose from the charcoal canister through retainer pinching before removing it from the connector. It is essential to clear the fuel tank vent hose connector of all dirt and foreign materials before taking precautions against scratches or other foreign objects on the parts while handling the work by hand without tools and keeping the nylon tube from all forced bending and twisting motions and wrapping the separated part inside a vinyl bag. The stuck fuel vent connector and pipe can be released by performing pushing and pulling movements.

Check for scratches or foreign objects and ensure a secure connection by pulling the quick connector.

Discharge the fuel system pressure and disconnect the cable from the negative battery terminal.

Disconnect the connector and EVAP tube, remove the bolt and 2 nuts to take out the charcoal canister, and disconnect the fuel tank vent hose by pinching the retainer and pulling the connector out.

Disconnect the cable from the negative battery terminal.