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Question

How do you change the valve cover gaskets on a 2000 Lincoln Navigator

Submitted: 85 days and 22 hours ago.
Category: Car
Value: $23
Status: CLOSED
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Optional Information

Year: 2000
Make: Lincoln
Model: Navigator
Engine: 5.4L

Already Tried:
trying to remove intake manifold

Accepted Answer

I will attach the information on this.

 

LT side

  1. Remove the upper intake manifold.

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  1. Disconnect the Exhaust Gas Recirculation (EGR) tube from the exhaust manifold and remove the valve and tube as an assembly.

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  1. Remove the bolts and the ignition coil cover.

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  1. Disconnect the four ignition coils.

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  1. Remove the four ignition coils.

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  1. Separate the engine wiring harness from the valve cover studs.

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  1. Remove the bolts, studs and the left valve cover.
    • Clean and inspect the sealing surfaces.

Installation

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  1. Apply silicone in the locations shown.
    • Use Silicone Gasket and Sealant F7AZ-19554-EA or equivalent meeting Ford specification WSE-M4G323-A4.

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  1. Position the valve cover and install the eight bolts and two studs in the sequence shown.

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  1. Connect the engine control sensor wiring to the valve cover studs.

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  1. Install the four ignition coils.

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  1. Connect the four ignition coils.

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  1. Position the ignition coil cover and install the bolts.

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  1. Position the EGR valve and tube assembly on the engine and loosely connect to the exhaust manifold connector.
  2. Install the upper intake manifold.

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  1. Tighten the EGR tube.

RT side

 

Removal

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  1. Disconnect the upper radiator hose, the heater water hose, and the heated PCV inlet hose from the water outlet adapter.
  2. Remove the upper intake manifold.

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  1. Remove the bolts and the ignition coil cover.

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  1. Disconnect the four ignition coils.

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  1. Remove the four ignition coils.

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  1. Disconnect the bulkhead wiring connectors.

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  1. Separate the engine control wiring harness from the valve cover studs.

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  1. Remove the eight bolts, two studs and the valve cover.
    • Clean and inspect the scaling surfaces.

Installation

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  1. Apply silicone in the locations shown.
    • Use Silicone Gasket and Sealant F7AZ-19554-EA or equivalent meeting Ford specification WSE-M4G323-A4.

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  1. Position the valve cover and install the eight bolts and two studs in the sequence shown.

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  1. Connect the engine control wiring harness to the valve cover studs.

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  1. Connect the bulkhead wiring connectors.

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  1. Install the four ignition coils.

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  1. Connect the four ignition coils.

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  1. Position the ignition coil cover and install the bolts.
  2. Install the upper intake manifold.

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  1. Connect the upper radiator hose, the heater water hose and the heated PCV inlet hose to the water outlet adapter.

Picture
Expert: brownjeff
Pos. Feedback: 100.0 %
Accepts: 
Answered: 8/28/2009

ASE Certified Technician

17 years experience, ASE certified, dealership certified, Service Manager for 15 years,

85 days and 22 hours ago.

Reply

I need the diagrams/information on how to remove the intake manifold. That's where I am stuck, it looks like there are several inaccesible bolts on the back of the intake manifold that I cannot get to.

Posted by brownjeff 85 days and 22 hours ago.

Answer

Removal

  1. Remove the air cleaner outlet tube.
  2. Partially drain the engine cooling system.

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  1. Remove the three bolts and the engine appearance cover.

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  1. Disconnect the accelerator cable, speed control cable, and the return spring.

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  1. Remove the bolts and position the cables and bracket out of the way.

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  1. Disconnect the Evaporative Emission (EVAP) return line.

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  1. Disconnect and remove the Positive Crankcase Ventilation (PCV) tube.

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  1. Disconnect the coolant lines and plug.

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  1. Disconnect the electrical connector from the intake tuning valve.

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  1. Remove the bolts and five clips and the wiring harness shield.

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  1. Remove the bolts and the stud, and the balance tube.

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  1. Remove and discard the gaskets and clean the sealing surfaces.

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  1. Disconnect the Throttle Position (TP) sensor.

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  1. Disconnect the Idle Air Control (IAC) motor.

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  1. Disconnect the vacuum lines and the electrical connector from the EGR Vacuum Regulator (EVR) .

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  1. Disconnect the two hoses and the electrical connector from the differential pressure feedback EGR.

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  1. Remove the nut.

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  1. Note: The bolts are located at the front side of the LH cylinder head. Remove the bolts from the power steering reservoir bracket and position it aside.

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  1. Remove the stud and position the oil fill tube aside.

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  1. Disconnect the brake booster vacuum line.

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  1. Disconnect the vacuum line.

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  1. Disconnect the vacuum line from the Exhaust Gas Recirculation (EGR) valve.

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  1. Remove the bolts from the EGR adapter.

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  1. Remove the bolts and the upper intake manifold.
    • Clean and inspect the sealing surfaces.

Installation

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  1. Install the upper intake manifold:
    • Install the bolts.
    • Tighten the bolts to 10 Nm (89 inch lbs.) and then an additional 90 degrees in the sequence shown.

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  1. Install the EGR adapter.
    • Install a new gasket.
    • Position the EGR valve adapter.
    • Install the bolts.

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  1. Connect the vacuum line to the EGR valve.

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  1. Connect the vacuum line.

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  1. Connect the brake booster vacuum line.

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  1. Position the oil fill tube and install the stud.

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  1. Position the power steering reservoir bracket and install the bolts.

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  1. Tighten the EGR valve at the exhaust manifold.

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  1. Install the nut.

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  1. Connect the two hoses and the electrical connector to the differential pressure feedback EGR.

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  1. Connect the vacuum lines and the electrical connector to the EVR.

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  1. Connect the IAC valve.

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  1. Connect the TP sensor.

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  1. Install the balance tube and the bolts and stud.

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  1. Install the wiring harness shield, the bolts and five clips.

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  1. Connect the electrical connector to the intake manifold tuning valve.

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  1. Install the tube assembly and connect the PCV valve tube.

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  1. Connect the PCV fitting heater coolant hoses.

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  1. Connect the EVAP return line.

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  1. Position the cables and bracket and install the bolts.

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  1. Connect the accelerator cable, speed control cable, and the return spring.

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  1. Install the engine appearance cover and the three bolts.
  2. Refill the engine cooling system.
  3. Install the engine air cleaner and outlet tube

85 days and 22 hours ago.

Reply

Jeff,

 

Good info and I really appreciate the diagrams. Any hints on getting to the back bolts for the intake manifold? I am ready to hit accept...

Posted by brownjeff 85 days and 22 hours ago.

Answer

1/4 inch socket/swivel with extension seems to work the best.

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