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Remove the negative battery cable. Remove the intake manifold sight shield-four nuts. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure in Powertrain Management. Remove the air intake duct from the throttle body. Remove the transaxle vent hose and transaxle shift cable at the bracket. Remove the TP sensor and IAC valve connectors. Remove the accelerator cable and cruise control cable at the throttle body. Remove the front bank spark plug wires and lay them aside. Remove the throttle body coolant hoses at the throttle body and the surge tank pipe. Refer to Throttle Body Coolant Hose Replacement in Cooling System. 10. Remove the EGR pipe and the crankcase ventilation pipe at the throttle body spacer. 11. Remove the brake booster vacuum hose at the intake manifold vacuum fitting. 12. Remove the fuel rail ground wire at the rear cylinder head. 13. Remove the quick-connect fittings at the fuel rail. 13.1. Grasp both sides of the fitting. 13.2. Twist the female connector 1/4 turn in each direction to loosen any dirt within fitting. 1. 2. 3. 4. 5. 6. 7. 8. 9. Caution: Safety glasses must be worn when using compressed air, as flying dirt particles may cause eye injury. Blow the dirt out of the fitting using compressed air. Choose the correct tool from the J 37088-A for the size of the fitting. Insert the tool into the female connector, then push/pull inward to release the locking tabs. 13.5. Pull the connection apart. – Using a clean shop towel, wipe off the male pipe end. – Inspect both ends of the fitting for dirt and burrs. – Clean or replace the components or assemblies as required 14. Disconnect the fuel rail bracket at the EGR valve. 15. Disconnect the PCV hose at the intake manifold. 16. Disconnect the injector harness main connector. 13.3. 13.4.

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12. Disconnect engine control sensor wiring retainers from rocker arm cover stud bolts and each fuel injector, and position the engine control sensor wiring (12A581) out of the way. 13. NOTE: Fuel injectors and fuel injection supply manifold (9F792) may be removed with lower intake manifold as an assembly. Remove fuel injection supply manifold and fuel injector. 14. Remove ignition wires from spark plugs (12405) . Refer to Section 03-07A. Remove wire harness retainers from valve cover retaining stud bolts. 15. Remove ignition coil (12029) and bracket from LH front cylinder head (6049) and set aside. Refer to Section 03-07A. 16. Disconnect upper radiator hose (8260) and heater water hoses (18472) . 17. Remove camshaft position sensor (CMP sensor) (6B288) and housing. Refer to Section 03-14. 18. Disconnect engine control sensor wiring from engine coolant temperature sensor (ECT sensor) (12A648) and the water temperature indicator sender unit (10884) . 19. If LH (front) cylinder head is being removed, perform the following: Disconnect generator electrical connectors. Remove drive belt (8620) . Refer to Section 03-05. Remove drive belt tensioner (6B209) . Refer to Section 03-05. Remove generator brace and generator (GEN) (10346) . Remove power steering support bracket and power steering pump (3A674) as an assembly and set aside in a position to prevent fluid from leaking out. Remove oil level indicator tube retaining nut from exhaust manifold stud bolt. Rotate or remove oil level indicator tube (6754) from exhaust manifold (9430) . 20. If RH (rear) cylinder head is being removed, perform the following: Remove intake manifold support (9J444) . 21. Remove valve covers (6582) as described. 22. NOTE: Regardless of cylinder head removal order, the No. 3 cylinder intake valve push rod (6565) must be removed to allow removal of lower intake manifold . Loosen rocker arm seat retaining bolts enough to allow the rocker arm (6564) to be lifted off the push rod and rotated to one side. 23. Remove push rods . Identify the position of each push rod . The push rods should be installed in their original position during reassembly. 24. Remove lower intake manifold as described in this section. 25. Remove spark plugs . 26. Remove exhaust manifolds as described. 27. Remove cylinder head retaining bolts and discard. 28. Remove cylinder heads . 29. Remove and discard the old head gaskets (6051) . Installation