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Home >> Chevrolet >> 2001 >> Lumina >> Repair and Diagnosis >> External Pages >> Different car >> Section 187 (Engine Mechanical - 3.1L V6 - VIN (J) (On-Vehicle)) >> Repair Instructions >> Intake Manifold Replacement - Upper >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. If removed, install the throttle body. Refer to THROTTLE BODY .
  2. Install the upper intake manifold gasket.
    Fig 1: Upper Intake Manifold Gasket
    G01763543Courtesy of GENERAL MOTORS CORP.
  3. Install the upper intake manifold.
  4. Loosely install the left upper intake manifold bolts.
    Fig 2: Left Upper Intake Manifold Bolts
    G01763544Courtesy of GENERAL MOTORS CORP.
  5. Loosely install the right upper intake manifold bolts and studs.

    Tighten: 

    Tighten the upper intake manifold bolts and studs to 25 N.m (18 ft lbs) 

    Fig 3: Right Upper Intake Manifold Bolts And Studs
    G01763545Courtesy of GENERAL MOTORS CORP.
  6. Install the EGR valve. Refer to EGR VALVE .
  7. Install the MAP sensor bracket and the sensor. Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR .
  8. Install the EVAP canister purge valve. Refer to EVAP CANISTER VENT VALVE .
  9. Install the ignition coil bracket with the coils. Refer to IGNITION COILS .
  10. Install the thermostat bypass pipe coolant hoses (3,4) to the throttle body.
    Fig 4: Thermostat Bypass Pipe Coolant Hoses
    G01763547Courtesy of GENERAL MOTORS CORP.
  11. Install the following wiring harnesses to the retainers:
    • Engine wiring harness
    • Left side spark plug wire harness
    • Camshaft position (CMP) sensor wiring harness
  12. Install the left side spark plug wires to the spark plugs.
  13. Install the accelerator control and the cruise control cables with the bracket to the throttle body. Refer to ACCELERATOR CONTROLS CABLE BRACKET REPLACEMENT in ENGINE CONTROLS - REMOVAL & INSTALLATION, OVERHAUL .
  14. Install the air cleaner intake inlet duct. Refer to AIR CLEANER INTAKE DUCT REPLACEMENT in ENGINE CONTROLS - REMOVAL & INSTALLATION, OVERHAUL .
  15. Connect the electrical connectors to the following:
    • Evaporative emission (EVAP) canister purge valve
    • Throttle Position (T/P) sensor
    • Idle Air Control (IAC) valve
    • Mass Air Flow (MAF) sensor
    • Exhaust Gas Recirculation (EGR) valve
  16. Install the vacuum hoses to the following:
    • Heater and air conditioning source
    • Brake booster
    • Manifold vacuum source
    • Evaporative emissions (EVAP) canister purge valve
    • Fuel pressure regulator
    Fig 5: Vacuum Hoses
    G01763548Courtesy of GENERAL MOTORS CORP.
  17. Connect the negative battery cable.
  18. Fill the cooling system.
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