Removal (Land Cruiser)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Intake manifold must be removed for access to knock sensors. Knock sensors are located below intake manifold, on cylinder block. See Fig 1. Intake manifold consists of an upper and lower intake manifold.
- Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE under FUEL SYSTEMS.
- Remove "V" bank cover located on top of engine, above intake manifold.
- Remove air intake hose with intake air connector located between throttle body and air cleaner assembly.
- Manufacturer recommends removing throttle body from intake manifold with hoses attached and electrical connectors installed.
- Drain cooling system if necessary to disconnect coolant hoses for access to intake manifold.
- Remove throttle body bolts/nuts, throttle body and gasket from intake manifold.CAUTION: Use care when disconnecting fuel inlet hose from fuel filter, as some residual fuel pressure may still exist in the fuel system.
- Depress both sides of retainer and pull fuel inlet hose with disconnect fitting from fuel filter. See Fig 2.
- Note location of electrical connectors on fuel injectors for installation reference. Disconnect electrical connectors at fuel injectors.
- Disconnect necessary electrical connectors, fuel return hose, vacuum hoses, PCV hose, ground straps and wiring clamps for removal of intake manifold. Remove bolts and disconnect engine wiring harness protector from rear of intake manifold and ground straps at rear of cylinder heads.
- Disconnect engine wiring harness protector from top of intake manifold. See Fig 3.
- Remove bolts/nuts that secure lower section of intake manifold to cylinder heads.
- Remove intake manifold with fuel injectors and fuel rails as an assembly.
- Remove gaskets for intake manifold.
- Disconnect electrical connectors at knock sensors. Using Oil Pressure Switch Socket, or equivalent (SST 09816-30010), remove knock sensor(s) from cylinder block.