Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » Engine, Cooling and Exhaust » Engine » Intake Manifold » Service and Repair » Intake Manifold Collector  
 
 
  Intake Manifold Collector  
 

INTAKE MANIFOLD COLLECTOR

Removal and Installation

  

REMOVAL

WARNING:

  • To avoid the danger of being scalded, never drain the coolant when the engine is hot.
  • The gasket for intake manifold collector (upper) is secured together with intake manifold collector (lower) bolt. Thus, when replacing only the upper gasket the lower gasket must also be replaced.
  1. Release fuel pressure. Refer to See: Fuel Pressure\Testing and Inspection.
  2. Remove the cowl top. Refer to See: Body and Frame\Cowl\Cowl Moulding / Trim\Service and Repair\Coupe.
  3. Remove the engine cover, using power tool.
  4. Remove air cleaner assembly and fresh air intake tube as an assembly. Refer to See: Air Cleaner Fresh Air Duct/Hose\Service and Repair.
  5. Partially drain the coolant when the engine is cool. Refer to See: Cooling System\Coolant\Service and Repair.

  

  1. If necessary, remove the electric throttle control actuator bolts in the reverse order as shown and remove the electric throttle control actuator.

CAUTION:

  • Handle carefully to avoid any shock to the electric throttle control actuator.
  • Do not disassemble.

  

  1. If necessary, remove power valve bolts in the reverse order as shown and remove the power valves.
  2. Disconnect the following:

  

  • Power brake booster vacuum hose
  • Coolant hoses from the electric throttle control actuator
  • Fuel injector electrical connectors
  • PCV hose
  • Electric throttle control actuator electrical connector
  • EVAP canister purge hose

CAUTION:

  • Cover any engine openings to avoid the entry of any foreign material.
  1. Remove the EVAP canister purge volume solenoid valve bracket bolt. Position the valve aside.

  

  1. Loosen the intake manifold collector bolts in the order as shown using power tool, and remove the intake manifold collector and gasket.
  2. If necessary remove the following components:
    • VIAS control solenoid valve
    • EVAP canister purge volume control solenoid valve

INSTALLATION
Installation is in the reverse order of removal.

  

  • Tighten intake manifold collector bolts in the order as shown.
  • Tighten power valve bolts in the order shown.

  

CAUTION:
The power valve must be held in the closed position during installation.

  • Tighten electric throttle control actuator bolts in the order shown.

  

  

NOTE:
After installation, it is necessary to re-calibrate the electric throttle control actuator as follows:

  1. Perform the "Throttle Valve Closed Position Learning" when harness connector of the electric throttle control actuator is disconnected. Refer to See: Powertrain Management\Computers and Control Systems\Testing and Inspection\Programming and Relearning\Throttle Valve Closed Position Learning\Description.
  2. Perform the "Idle Air Volume Learning" when the electric throttle control actuator is replaced. Refer to See: Idle Speed\Testing and Inspection\Idle Air Volume Learning\Description.