Toyota 17111-56130 Manifold, Intake

Before fully disconnecting the intake manifold for separating it from the car, loosening the negative terminal of the battery disconnect the car's ignition is advised, depending on the car stereo, it may have an anti theft feature that requires the input of a code. Also, turn off the PCV and vacuum hoses that are affixed to the manifold and those for the brake booster and the air conditioning system idle-up actuator and then unhook the system. Take off the throttle body and the air intake plenum, then the fuel rail and injecting units. Remove vacuum hoses from the EGA valve and vacuum modulator, put them aside with the corresponding marks, and, in turn, dismantle the EGA pipe in the manifold, put the EGA assembly aside. Disconnect the ground strap and loose the anchor nuts/bolts of the manifold assembly to disengage it from the engine's compartment, which also require detaching the wiring harness, the bolts of the lower intake manifold, as well as those two nut on the steel line below the car. For installation, one must remove any foreign material on the mating surfaces of the manifold and cylinder head and use lacquer thinner or acetone for the same; in the case of a weeping gasket, the manifold should be checked for warpage and resurfaced if needed. Then replace the gasket and then place the manifold over the cylinder head and then using nuts/bolts to fix it, however tighten the nuts/bolts in three even quarter turns to avoid warping the manifold that may result in gasket leakage. Replace the rest of the parts in reverse order, ensure that; the throttle linkage moves smoothly before starting the engine, and finally when the engine is running look for signs of coolant and vacuum leaks. Last, take the vehicle for a road test where all the accessories would have to be tested such as the cruise control if it is installed.