Toyota 12204-37010
PCV Valve

Start the Positive Crankcase Ventilation Valve installation by applying Toyota Genuine Adhesive 1324 or equivalent to 2 or 3 threads of the valve. Begin by using Toyota Genuine Adhesive 1324 or Three Bond 1324 or equivalent to apply adhesive on 2 or 3 threads of the ventilation valve. Finally, tighten the valve to 20 Nm (204 kgf-cm, 15 ft-lbf) while connecting the ventilation hose. Before proceeding with automatic transaxle sub-assembly installation the technician must install both the intake manifold and transmission oil level gauge sub-assembly and the engine oil level dipstick. The order is to install the automatic transaxle's oil cooler tube followed by the starter assembly and injector vibration insulator and No. 1 delivery pipe spacer then continue with the fuel delivery pipe sub-assembly and fuel tube sub-assembly followed by the fuel pipe clamp and vacuum hose then connect the No. 1 fuel vapor feed hose along with harness bracket engine wire harness and air cleaner cap sub-assembly with hose. The negative battery terminal should receive the cable with 5.4 Nm (55 kgf-cm, 48 in-lbf) torque before adding engine coolant to check for coolant and fuel leakages. To complete the installation process torque down the No. 2 cylinder head cover followed by the engine under cover RH to 5.0 Nm (51 kgf-cm, 44 in-lbf) and engine under cover LH with the same torque specification.

The first step to remove the Positive Crankcase Ventilation Valve requires complete fuel system pressure discharge. Begin the process by detaching the negative battery cable before taking out both left and right engine under covers. The first step includes draining engine coolant then uninstalling the No. 2 cylinder head cover. First detach the air cleaner cap sub-assembly with its attached hose before separating the engine wire harness. Remove the harness bracket before taking off the No. 1 fuel vapor feed hose and No. 1 vacuum transmitting hose. The vacuum hose removal process requires the fuel pipe clamp removal and disconnection of the fuel tube sub-assembly. The technician must first remove the fuel delivery pipe sub-assembly followed by the sequence of removing the No.1 delivery pipe spacer then the injector vibration isolator. Guests should remove the starter assembly and the oil cooler tube for Automatic Transaxle use alongside the transmission oil level gauge sub-assembly for Automatic Transaxle. The technician must begin by disconnecting the ventilation valve sub-assembly only after removing both the engine oil level dipstick and the intake manifold and the ventilation hose.

Connect the ventilation hose.

The torque specification is 20 Nm (204 kgf-cm, 15 ft-lbf).

First, remove the intake manifold.

Torque it to 10 Nm (102 kgf-cm, 7 ft-lbf).

Apply adhesive to 2 or 3 threads of the ventilation valve using Toyota genuine adhesive 1324, three bond 1324, or an equivalent.

Disconnect the No. 2 ventilation hose from the ventilation valve sub-assembly, which is the PCV valve.