OEM 2008 Toyota Sequoia Intake Manifold

2008 Toyota Sequoia Parts Questions & Experts Answers

• Q: How to install the intake manifold assembly on 2008 Toyota Sequoia?

  A: The first step for installing the 2UZ-FE engine intake manifold assembly requires fitting the fuel delivery pipe sub-assembly. First, position the vacuum switching valve assembly for ACIS into place while you install the purge VSV assembly to the intake manifold with an 18 Nm (184 kgf-cm, 13 ft-lbf) torque and attach the purge line hose. Place the throttle body assembly on its groove with a new gasket then attach it by using a nut and 3 bolts which need 14 Nm (143 kgf-cm, 10 ft-lbf) torque. Place two new gaskets on the intake manifold assembly before setting it onto the cylinder heads and follow step-by-step uniform tightening of 6 bolts and 4 nuts until their torque reaches 18 Nm (184 kgf-cm, 13 ft-lbf). Use two bolts to attach the engine wire protector after torquing them to 8.2 Nm (83 kgf-cm, 72 in-lbf). Then join all eight injector connectors and two wire clamps along with the vacuum switching valve assembly connector before securing the wire harness bracket to the intake manifold assembly using a 8.2 Nm (83 kgf-cm, 72 in-lbf) torque. The engine hanger wire harness clamp joins with the purge line hose to the purge VSV and the purge VSV connector needs attachment. Install the ventilation hose followed by clamping it twice then connect the 2 water by-pass hoses to the throttle body assembly while connecting its connector. The engine technician should install the No. 1 fuel pipe sub-assembly then the No. 2 fuel pipe sub-assembly and complete the installation with the EFI fuel pipe clamp. The installation process for the No. 2 water by-pass pipe requires the use of 2 water hoses which must be fastened by two bolts tightened to 10 Nm (102 kgf-cm, 7 ft-lbf). Reconnect the water hoses afterward. Join and fasten the vacuum hose assembly to the intake manifold assembly by using a 8.0 Nm (82 kgf-cm, 71 in-lbf) torque bolt. After engine coolant addition check for coolant and fuel leakage then install the No. 1 engine under cover. Fasten the throttle body cover sub-assembly through the installation of two throttle body cover brackets secured by two bolts torqued to 7.5 Nm (76 kgf-cm, 66 in-lbf) and mounting of two cover nuts at the identical torque range. Attach the front cowl top outer panel sub-assembly using 7 bolts with 7.5 Nm (76 kgf-cm, 66 in-lbf) torque then connect the wire harness clamp before adding the washer hose grommet then linking the washer hose. Installation of the front wiper components concludes with the insertion of front wiper motor and link accessories and cowl top ventilator louver sub-assembly followed by both RH and LH front fender to cowl side seals and front wiper arm and blade assemblies.