Toyota 17120-0H081
Intake Manifold

Installation of the 2AZ-FE intake manifold begins with securing the throttle hose then adding the union to connector tube hose and tightening the vacuum hose clamp bolt to 8.5 Nm (87 kgf-cm, 75 in-lbf). Following the installation of the No. 2 ventilation hose you must place a new gasket onto the intake manifold before tightening the 5 bolts and 2 nuts to 30 Nm (306 kgf-cm, 22 ft-lbf). Reattach the union to connector tube hose together with the No. 2 ventilation hose. Following the installation of the cylinder head injector vibration insulation pieces (4) position the first delivery pipe spacer while securing both fuel delivery pipe sub-assemblies with 2 bolts tightened to 20 Nm (204 kgf-cm, 15 ft-lbf). The fuel tube sub-assembly needs to be installed with wire harness which should be followed by connecting both the injector assembly connector and camshaft oil control valve assembly connector and heated oxygen sensor connector. The installer must install the EFI pipe clamp before attaching the fuel tube sub-assembly. To complete the installation you should place the throttle body assembly followed by the air cleaner cap sub-assembly with No.1 air cleaner hose then the No.1 engine cover sub-assembly. The installation order includes cowl top outer panels together with front wiper motor links and ventilator louver assemblies for left and right sides and hood to cowl top seals and front wiper arms and blades for left and right sides and windshield wiper arm covers. As a final step add engine coolant while ensuring the coolant system does not have any leaks.

The removal process of 2AZ-FE engine intake manifold starts with clearing fuel system pressure. The specific order for removal includes clearing the windshield wiper arm position cover then disconnecting the both left and right front wiper arm and blade assemblies. Next remove the hood to cowl top seal followed by the cowl top ventilator louvers from both sides. Once those parts are removed from the list, proceed to remove the front wiper motor as well as link and outer cowl top panel and No.1 engine cover sub-assembly and air cleaner cap sub-assembly with its connected No.1 air cleaner hose. Begin by taking out the throttle body assembly then break the connection between the fuel tube sub-assembly through the process of removing the EFI fuel pipe clamp followed by disconnecting the fuel tube. The service starts by disconnecting three connectors including the injector connector and camshaft oil control valve connector and air fuel ratio sensor connector from the fuel delivery pipe sub-assembly with fuel tube sub-assembly followed by wire harness and fuel tube sub-assembly separation. Two bolts need removal before separating the delivery pipe sub-assembly together with the No. 1 delivery pipe spacer and four insulators from the cylinder head. The procedure ends with ventilation hose and union to connector tube hose disconnection before removing the five bolts and two nuts that detach the intake manifold. Finish by taking off the ventilation hose, vacuum hose clamp bolt, and union to connector tube hose together with the throttle hose.

First, install the throttle hose.

Install the union to connector tube hose and secure the vacuum hose clamp with a bolt, torqued to 8.5 Nm (87 kgf-cm, 75 in-lbf).

Discharge the fuel system pressure.

Install the bracket with a bolt, torqued to 10 Nm (102 kgf-cm, 8 ft-lbf), and place a new gasket into the intake manifold.

Fit the union to connector tube hose into the vacuum hose clamp, install the wire harness clamp, and connect the camshaft timing oil control valve connector.

Remove the five bolts, two nuts, and the intake manifold, and then take off the gasket from the intake manifold.

Using a "TORX" socket E6, remove the two stud bolts from the intake manifold.