Mercury 5L8Z-9D280-AA Fuel Supply Manifold Assembly

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Disconnect the high-pressure fuel lines from the fuel pump and fuel rail(s).

To remove the intake manifold on 2008 and later models, depressurize the fuel system, and disconnect the cable from the negative battery terminal. Remove the outlet tube from the air cleaner, remove the front collision impact sensor, transaxle fluid level dipstick. Remove the lower intake manifold mounting bolt that is above the engine oil dipstick tube, then remove the dipstick and tube. Disconnect the wiring from the oil pressure switch and throttle body. Disconnect the power steering tube and the vapor hose. Disconnect the wiring harnesses from the knock sensor, MAP sensor, and the swirl control solenoid and sensor. Loosen the two center intake manifold bolts, remove the five remaining intake manifold bolts. Disconnect the PCV hose and remove the intake manifold. Installation is the reverse of removal, replace the intake manifold gaskets if they are damaged, and tighten the mounting bolts to the torque listed.

To remove the fuel rail and injectors as a single assembly, follow these steps: a) Remove the fuel rail mounting bolts. b) Carefully lift and remove the fuel rail and injectors together as one unit.

To remove the fuel rail and injectors as a single assembly, follow these steps:a) Remove the fuel rail mounting bolts.b) Carefully lift and remove the fuel rail and injectors together as one unit.