OEM 2000 Mercury Grand Marquis Intake Manifold

2000 Mercury Grand Marquis Intake Manifold Parts Questions & Experts Answers

• Q: How to service and repair the intake manifold on 2000 Mercury Grand Marquis?

  A: Service and repair of the intake manifold should begin with disconnecting the battery ground cable and draining the engine cooling system. After disconnecting power sources start by removing air cleaner outlet tube, fuel line, wiper arm with pivot shaft, then remove drive belt before hoisting the vehicle. Disconnect the electrical connector at Crankshaft Position (CKP) sensor and the pin-type retainer from the A/C compressor bracket followed by removal of the electrical connector at the A/C compressor. Remove the bypass filter from the oil circuit then unplug both the oil pressure sensor and Power Steering Pressure (PSP) switch electrical connectors. Lower the vehicle after you remove the EGR tube from the exhaust manifold while taking apart two differential pressure feedback EGR hoses and removing the RH heated oxygen sensor electrical connector along with the eight ignition coil and fuel injector electrical connectors. Workers should first disconnect the accelerator cable together with the speed control actuator cable before removing these components from the EGR tube heat shield by taking out the mounting bolts and the shield itself. First disconnect the Evaporative Emissions (EVAP) return tube followed by the main chassis vacuum supply line, EGR valve vacuum supply and then disconnect the Positive Crankcase Ventilation (PCV) tube assembly from two locations before removing the assembly. First disconnect the electrical connector from the EGR vacuum regulator solenoid and then remove the vacuum line from the EVAP canister purge valve. Subsequently disconnect the generator cable with its electrical connector. First remove all generator bolts and its mounting bracket before discarding the upper radiator hose. The technician disconnects electrical cables from both the Idle Air Control (IAC) valve and Throttle Position (TP) sensor along with the EGR tube and heater water hose from the EGR valve. Pay attention to the LH heated oxygen sensor and transmission electrical connectors because they attach to a wiring bracket that needs separation from the bracket before removal. First detach the wiring connectors from the controller ports and free the transmission harness from its stud. Next remove the bracket by taking out its bolt and stud. You need to remove the bolts and throttle body first then free the fuel charging wiring pin-type retainer from the crash bracket by removing its bolt and stud of the crash bracket. First remove the vacuum lines and vacuum harness and after that the assembly consisting of fuel injection supply manifold with fuel injectors must be removed. Start by removing the ignition coils through their bolts and proceed to unfasten the bolts holding the water outlet adapter followed by removing the water thermostat and intake manifold with its gaskets. The surfaces where gaskets will be installed need cleaning followed by manual bolting of the intake manifold bolts. Fix the ignition coils while tightening their bolts before adding and tightening the fuel injection supply manifold studs. Begin by fastening the crash bracket and water outlet adapter bolts along with the water thermostat loosely before tightening them one by one. After properly positioning the wiring bracket install its nut and bolt and connect all wiring connectors followed by plugging in the LH heated oxygen sensor electrical connector. Since you need to link the EGR tube to the EGR valve you will next put the EGR tube heat shield into position before securing the bolts. First position the heater water hose clamp then link its connectors after which connect the IAC control valve electrical connectors and TP sensor electrical connectors. The installation process requires positioning both clamps on the upper radiator hose before connecting the generator electrical connector with battery lead and installing the generator mounting bracket through bolts. Mount the vacuum harness to your location while you link the vacuum line into the EVAP canister purge valve and afterward attach both electrical connections and vacuum lines to the EGR vacuum regulator solenoid. The installation of the PCV tube requires connection to vacuum lines serving both the EVAP canister purge valve and EGR valve along with the main chassis supply line. Finally, reposition the cables on the EGR tube heat shield. The acceleration cable and speed control actuator cable must be joined first before linking the eight fuel injector and ignition coil electrical connections along with the RH heated oxygen sensor electrical connector. Insert the two differential pressure feedback EGR hoses before draining out the fluid then raise the vehicle to connect the EGR tube to the exhaust manifold connector. The oil pressure sensor and PSP switch receive an electrical connector and then the oil bypass filter gets installed while the A/C compressor and CKP sensor get their electrical connector before securing the pin-type retainer to the A/C compressor bracket. The installation process includes lowering the vehicle then adds the drive belt followed by the wiper arm and pivot shaft before connecting the fuel line along with attachment of the air cleaner outlet tube. Last steps require battery ground cable reinstallation followed by engine oil inspection and correct filling of the engine cooling system.