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Home >> Chevrolet >> 2009 >> TrailBlazer 4.2 S, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - Introduction >> Repair Instructions >> Fuel Hose/Pipes Replacement - Chassis >> Installation Procedure

Installation Procedure

    Fig 1: Identifying EVAP Purge Pipe & Fuel Pipe
    GM1368523Courtesy of GENERAL MOTORS CORP.
  1. Position the fuel feed pipe (1) to the EVAP purge pipe (2).
  2. Install the EVAP/fuel hose/pipe assembly clips as noted during disassembly.
  3. Position the EVAP/fuel hose/pipe assembly along the engine and transmission.
    4. Fig 2: Identifying Fuel Feed Pipe & EVAP Pipes
    GM1368522Courtesy of GENERAL MOTORS CORP.
  4. Connect the chassis fuel feed pipe (1) to the fuel tank. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Connect the chassis EVAP purge pipe (2) to the fuel tank. Refer to Plastic Collar Quick Connect Fitting Service .
    6. Fig 3: Identifying Fuel Feed & Fuel Return Pipes (Left Side Of Engine)
    GM730718Courtesy of GENERAL MOTORS CORP.
  6. Install the EVAP/fuel hose/pipe assembly (4) to the fuel pipe clip at the rear of the engine.
  7. Use the following procedure with 2WD:
      Fig 4: Locating EVAP/Fuel Hose/Pipe Assembly Retaining Bolt
      GM730721Courtesy of GENERAL MOTORS CORP.
    1. Install the EVAP/fuel hose/pipe assembly into the clip (1) at the rear of the transmission.
      2. CAUTION: Refer to Fastener Caution .
    2. Position the EVAP/fuel hose/pipe assembly against the transmission and install the retaining bolt (3) through the EVAP/fuel hose/pipe assembly strap into the transmission.

      Tighten:  Tighten the bolt to 3.75 N.m (33 lb in).

    3. Raise the transmission to the normal installed position.
    4. Install the transmission support. Refer to Transmission Support Replacement .
  8. Use the following procedure with 4WD:
      Fig 5: Locating EVAP/Fuel Hose/Pipe Assembly Retaining Bolt
      GM730723Courtesy of GENERAL MOTORS CORP.
    1. Install the EVAP/fuel hose/pipe assembly (2) into the clip at the rear of the transmission.
    2. Position the fuel EVAP/fuel hose/pipe assembly against the transmission and install the retaining bolt (3) through the EVAP/fuel hose/pipe assembly strap into the transmission.

      Tighten:  Tighten the bolt to 3.75 N.m (33 lb in).

    3. Raise the transmission to the normal installed position.
    4. Install the transmission support. Refer to Transmission Support Replacement .
    5. Install the transfer case. Refer to Transfer Case Assembly Replacement .
  9. Lower the vehicle.
    10. Fig 6: Locating Evaporative Emission (EVAP) Purge Pipe & Fuel Feed Pipe
    GM1368525Courtesy of GENERAL MOTORS CORP.
  10. Connect the EVAP purge pipe (1) to the EVAP canister purge valve.
  11. Connect the integral clip (2) to the wire harness bracket.
  12. Connect the fuel feed pipe (3) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
    13. Fig 7: View Of Engine Coolant Temperature Electrical Connector
    GM1288027Courtesy of GENERAL MOTORS CORP.
  13. Connect the engine coolant temperature sensor electrical connector (1).
  14. Install the ECM. Refer to Engine Control Module Replacement .
  15. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  16. Inspect for leaks using the following procedure:
    1. Turn ON the ignition, with the engine OFF for 2 seconds.
    2. Turn OFF the ignition, for 10 seconds.
    3. Turn ON the ignition, with the engine OFF.
    4. Inspect for fuel leaks.
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