Genuine Lexus RX330 Intake Manifold

Lexus RX330 Intake Manifold Parts Questions & Experts Answers

• Intake Manifold
  17101-20070
  Q: How to remove and install Intake Manifold in 3.0L and 3.3L V6 engine on Lexus RX330?

  A:

  Unplug the battery and drain fuel pressure from the system. Open up the engine from below by removing the oil filler cap and hose clamp, then loosening the three screws around it. To remove the upper intake manifold, which gives you access to the rear valve cover, sensors, and back cylinder head, first get rid of the top cowl/vent cover, windshield wipers, and wiper motor, and then strip off the lower cowl cover afterward. Disconnect the PCV hose from the valve cover. To get the spark plugs out, take off the ground wire, everything from the ACIS system, electrical plugs, and vacuum tubes from the upper part of the intake system, and write down all connections for easy reinstallation. Undo all mounting nuts at the throttle body, loosen all upper intake manifold braces, and lift intake to release from throttle body and lower intake. For other work, take the following off the upper intake manifold/throttle body assembly: disconnect the ground strap, ACIS system components, electrical connectors, vacuum lines, and coolant bypass hoses, and cap off coolant hoses to stop leaks. Uncover the cabin's air filter rack, pull apart the vehicle's air inlet hoses, sever the throttle's electrical connection to its body, and take off the frame bar interfacing the headlights with the front suspension. Take off both brackets from the upper intake manifold (brace), and the throttle body brace. Raise the upper intake manifold/throttle body combination from the engine area. Before starting work on the fuel rail, gather fresh containers to store the drained coolant and set aside the fuel injectors' electrical wires. Remove the fuel line connecting the rail. Take off the heater hoses from the bottom of the intake manifold, undo the mounting bolts and nuts in the opposite order they were tightened, and remove the bottom intake from the engine while avoiding putting force between the gasket contact areas. If the intake manifold is taken off, swap the hose that sends water between the parts. To install the lower intake properly, first you'll need to scrape off and replace the old gasket material and sealant from the cylinder heads and manifold, clean everything, and put in fresh gaskets. You'll then want to make sure the manifold fits tightly on the engine before adding the nuts and bolts. After applying the gasket, carefully tighten nuts and bolts in three or four careful steps, reinstall everything backward from how you took it apart, refill coolant, start the engine, and look for fuel, vacuum, and liquid seeping out.