Toyota 17111-0P030 Manifold, Intake

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To remove the intake manifold, start by relieving the fuel system pressure and disconnecting the negative battery terminal. Remove the air intake duct, radiator, and cowl cover assembly. For 2009 and earlier models, remove the fuel rail and injectors, throttle linkage, and throttle body from the intake manifold. Label and detach the PCV and vacuum hoses connected to the rear of the intake manifold. Raise the vehicle and remove the manifold lower mounting bolts. From above, remove the intake manifold upper mounting nuts and bolts, along with the manifold, gasket, and manifold insulator. For 2010 and later models, remove the engine cover, disconnect vacuum hoses and ventilation tubes, and remove the throttle body from the intake manifold. Disconnect the fuel intake line from the fuel rail and disconnect the electrical connectors and harness mounting fasteners. Disconnect and remove the main harness connector from the intake manifold and tumble control valves. Apply battery voltage to the tumble control valve electrical connector to close the valve. Remove the intake manifold support bracket and disconnect the vacuum switching valve assembly electrical connector. Unscrew the intake manifold mounting fasteners and remove the manifold. To install, clean the mating surfaces and check for warpage. Press a new gasket into the grooves on the intake manifold and install it over the studs on the cylinder head. Tighten the manifold-to-cylinder head nuts or bolts in three or four equal steps. Install the remaining parts in reverse order and check for coolant and vacuum leaks.

Before removing the intake manifold, follow these initial steps:Relieve the fuel system pressure.Disconnect the negative battery terminal.Remove the air intake duct, radiator, and cowl cover assembly.

During the installation process, you should clean the mating surfaces, install new gaskets, and position the manifold on the engine.

No, it is not necessary to remove the fuel rail when replacing the gaskets on the lower intake manifold. However, the fuel line connection needs to be disconnected.

Disconnect the cable from the negative terminal of the battery.

Replace the water transfer hose, as it is exposed only when the intake manifold is removed.

The upper direct injection fuel rail must be removed before the lower intake manifold can be removed.

Clean the mating surfaces of the intake manifold and the cylinder head mounting surface. If the gasket shows signs of leaking, check the manifold for warpage with a straightedge and feeler gauges. If the manifold is warped, it must be replaced.

The fuel rail and injectors are removed as an assembly. The electronic throttle motor connector is disconnected, and the throttle body is removed. Additionally, PCV and vacuum hoses connected to the rear of the intake manifold are labeled and detached.

Drain the coolant into a clean container.

Remove the interfering brace.