Submitted by: Quik LS

You must remove the V6 intake when changing spark plugs, replacing coils or replacing the PCV valve.

Intake Manifold -Upper
Removal
1. Disconnect the battery ground cable.
2. Drain the engine cooling system.
3. Remove the engine appearance cover.
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4. Remove the air cleaner outlet tube.
5. Disconnect the throttle position (TP) sensor and the idle air control (IAC) solenoid electrical connectors.
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6. Disconnect the accelerator and speed control cables.
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7. Remove the cable bracket.
1. Remove the bolts.
2. Remove the bracket.
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8. Disconnect the throttle body hoses.
1. Disconnect the coolant hoses.
2. Disconnect the positive crankcase ventilation (PCV) hose.
3. Disconnect the vapor purge hose.
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9. Disconnect the vacuum hose.
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10. Disconnect the EGR to exhaust manifold tube nut.
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11. Remove the cowl vent screen.
12. Remove the brace.
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13. Remove the vacuum hoses from the mounting bracket.
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14. Remove the bracket and position the accelerator and cruise control cables aside.
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15. Disconnect the differential pressure feedback EGR electrical connector.
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16. Remove the stud and nut and position the differential pressure feedback EGR transducer aside.
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17. Remove the fuel pressure sensor shield.
  • Remove the nut.
  • Remove the bolts.
  • Remove the shield.
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18. Disconnect the vacuum hose from the rear of the upper intake manifold.
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19. Disconnect the intake manifold tuning valve (IMTV) electrical connector.
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20. Disconnect the exhaust vacuum regulator (EVR).
  • Disconnect the electrical connector.
  • Disconnect the vacuum line.

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21. Remove the upper intake support bolt.

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22. Remove the front intake manifold support bolt.
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23. Remove the bolts and the upper intake manifold.
  • Inspect the gaskets and discard as necessary.
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Installation
1. Position the upper intake manifold and gaskets.
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2. Install the fuel pressure sensor shield.
  • Position the shield.
  • Install the nut.

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3. Install the upper intake manifold bolts and tighten in the sequence shown.
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4. Position the differential pressure feedback EGR and install the nut and stud.
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5. Install the upper intake manifold support bolt.
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6. Install the upper intake support bolt.
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7. Connect the exhaust vacuum regulator (EVR).
  • Connect the electrical connector.
  • Connect the vacuum line.

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8. Connect the intake manifold tuning valve (IMTV) electrical connector.
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9. Connect the vacuum hose to the rear of the upper intake manifold.
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10. Position the differential pressure feedback EGR electrical connector.
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11. Connect the differential pressure feedback EGR electrical connector.
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12. Position the accelerator and cruise control cables and install the bracket.
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13. Clip the vacuum hoses into the mounting bracket.
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14. Install the brace.
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15. Install the cowl vent screen.
16. Connect the EGR to exhaust manifold tube nut.
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17. Connect the vacuum hose.

18. Connect the throttle body hoses.
1. Connect the coolant hoses.
2. Connect the PCV hose.
3. Connect the vapor purge hose.
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19. Install the cable bracket.
1. Position the bracket.
2. Install the bolts.
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20. Connect the accelerator and speed control cables.
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21. Connect the TP sensor and the IAC solenoid electrical connectors.
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22. Install the air cleaner outlet tube.
23. Install the engine appearance cover.
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24. Fill the engine cooling system.
25. Connect the battery ground cable.