Nissan Quest 2001-02 and 2004-06

Valve Covers

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Removal & Installation



3.3L Engine
  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Refer to illustration to remove and install the valve cover.
  6.  

3.5L Engine


Click image to see an enlarged view

Fig. View of valve cover and components

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Engine undercover using power tool and side engine covers
     
    Valve cover (RH), disconnect the mass air flow sensor electrical connector and remove the air cleaner to electric throttle control actuator tube and air cleaner lid
     
    Valve cover (RH), remove the front cowl panel
     
    Valve cover (RH), remove the windshield wiper arms and motor assembly
     
    Valve cover (right bank), remove the intake manifold collector
     
    Valve cover (LH), disconnect the air fuel (A/F) ratio sensor
     
    Ignition coils
     
    Position engine harness aside
     
    PCV hose
     
    Dipstick
     
    Valve covers in removal sequence

    Click image to see an enlarged view

    Fig. Valve cover removal sequence-3.5L Engine

     

  4.  

To install:

Click image to see an enlarged view

Fig. Valve cover tightening sequence-3.5L Engine

  1. To install, reverse removal procedure.
  2.  
  3. Apply sealant to the areas on the front corners. Use Genuine RTV Silicone Sealant or equivalent.
  4.  
  5. Tighten valve cover bolts in sequence to the following specifications:

    First pass: 17 inch lbs. (1.96 Nm)
     
    Second pass: 74 inch lbs. (8.33 Nm)
     

  6.  

 
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