OEM 2008 Lincoln Town Car Intake Manifold

2008 Lincoln Town Car Intake Manifold Parts Questions & Experts Answers

• Q: How to service and repair the intake manifold on 2008 Lincoln Town Car?

  A: Place the vehicle on a hoist during servicing and repairing of the intake manifold while it remains in NEUTRAL position. First disconnect the spring lock coupling of the fuel tube followed by removing the battery ground cable. Start by draining the cooling system engine fluid before you take off the air cleaner with its attached outlet pipe. Proceed to remove the wiper mounting arm and pivot shaft before taking away five retainer screws followed by unfastening two EVAP canister purge valve bracket nuts then the RH cowl extension. Start by disconnecting the electrical connector of the wiring harness before taking out the 3 retainer screws and finally extracting the LH cowl extension. Approach the fuel injector electrical connectors and coil-on-plugs for removal because these connect the system. Remove the 2 intake manifold shield bolts while taking off the shield and then disconnect the brake booster vacuum hose installed onto the intake manifold body. Remove the quick connect couplings of EVAP canister purge valve hoses from the throttle body spacer and the EVAP canister purge valve and also remove the PCV tube quick connect coupling from the throttle body spacer. Remove electrical and vacuum connections for the EGR system module along with the direct hose between intake manifold and throttle body spacer and electric connector from the electrical generator. Begin by extracting the coolant thermostat followed by removing the bracket and its 4 generator bracket bolts. The technician disconnects the throttle control and throttle position sensor electrical connector and separates the heater hose from its clamp before loosening the hose. Detach the EGR system module tube then remove the wire harness retainer from the intake manifold crash bracket followed by the removal of an intake manifold crash bracket bolt which should not come near the cylinder head. The second intake manifold crash bracket bolt needs removal before disconnecting the fuel rail pressure and temperature sensor vacuum and electrical connectors and removing wire harness retainers from the LH front fuel rail stud and the rear of the intake manifold. Use the RH rear fuel rail stud bolt to disconnect its ground connector while removing the 8 bolts fixing the intake manifold and discarding each intake manifold gasket. When replacing the intake manifold gaskets clean the contact surfaces while directing the tabs from the gasket to match the slots in the cylinder head. You should initially hand-tighten the 8 bolts on the intake manifold and afterward install 8 ignition coil-on-plugs. Begin by placing the intake manifold crash bracket and loosely apply its bolts. Then proceed to sequence-tighten all intake manifold bolts to 25 Nm (18 lb-ft) before torqueing the crash bracket bolt to match. Plug in the EGR system module tube along with the intake manifold shield which should be fastened using 2 bolts to 10 Nm (89 lb-in). Next attach the throttle control and throttle position sensor electrical connectors. The installer must attach the coolant thermostat followed by generator bracket installation with 4 bolts reaching a torque of 10 Nm (89 lb-in). The generator electrical connector must be connected at this stage. Rejoin all EVAP canister purge valve hose quick connect couplings between the throttle body and EVAP canister purge valve and reintegrate the intake manifold vacuum hose to the throttle body spacer as well as reconnect EGR system module vacuum and electrical connectors. The PCV tube quick connect coupling needs installation at the throttle body spacer position while the brake booster vacuum hose mount at the intake manifold and the heater hose requires spring clamp installation. Follow the process by reconnecting the fuel rail pressure and temperature sensor vacuum connectors and electrical connections before proceeding with the 8 fuel injector electrical connectors. Begin by installing the wire harness retainer behind the intake manifold before securing it to each of the LH front fuel rail stud along with the intake manifold crash bracket. The ground connector should be connected to the RH rear fuel rail stud bolt before adding the LH cowl extension completed by reattaching the wiring harness electrical connector. Install the RH cowl extension using 5 retainer screws then the 2 EVAP canister purge valve bracket nuts should be torqued to 10 Nm (89 lb-in) before securing the wiper mounting arm with its pivot shaft. The last steps should include reconnecting the fuel spring lock coupling followed by installing the air cleaner and outlet pipe and reconnecting the battery ground cable and performing the engine cooling system fill and bleeding procedures.