Toyota 17101-03050 Manifold, Intake

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Start by relieving fuel system pressure and disconnecting the battery cable. Drain coolant and remove the V-bank cover, air cleaner assembly, and disconnect connectors and hoses from the throttle body. Remove the throttle body if needed. On Solara models, remove the front suspension brace. Disconnect the EGR pipe and unbolt the intake plenum braces. Remove the bolts and nuts holding the plenum to the lower intake manifold and lift off the plenum. To remove the lower intake manifold, disconnect connectors from the fuel injectors and disconnect the air assist and heater hoses. Detach the fuel line and remove the eight mounting nuts/bolts. Replace the water transfer hose if the intake manifold is removed. To install, clean the mating surfaces and install new gaskets. Tighten the nuts/bolts. Reinstall the remaining parts in reverse order and refill the cooling system. Check for leaks.

Disconnect the negative cable from the battery. Loosen the air cleaner hose clamp at the throttle body and remove the air cleaner top (four clamps), resonator, and hose. Disconnect the coolant hoses from the throttle body and plug them to prevent coolant leakage. Label and detach any wire harness and control cables or hoses connected to the intake manifold. Press in on the clips to release the wiring harness retainers. Disconnect the two ground straps from the firewall side of the intake manifold, then disconnect the knock sensor. Carefully lift the wire harness over the manifold. Unbolt the intake manifold-to-engine braces. Disconnect the electrical connectors from the coil pack, then remove the mounting bolts and remove the coil pack mount/intake brace. Remove the mounting nuts/bolts, then detach the manifold from the engine. Use a scraper to remove all traces of old gasket material and sealant from the manifold and cylinder head, then clean the mating surfaces with lacquer thinner or acetone. If the gasket was leaking, have the manifold checked for warpage at an automotive machine shop and resurfaced if necessary. Install a new gasket, then position the manifold on the head and install the nuts/bolts. Tighten the nuts/bolts. Work from the center out towards the ends to avoid warping the manifold. Install the remaining parts in the reverse order of removal. Before starting the engine, check the throttle linkage for smooth operation. Check the coolant and add some if necessary to bring it to the appropriate level. Run the engine and check for coolant and vacuum leaks. Road test the vehicle and check for proper operation of all accessories, including the cruise control system.