GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 2WD 🢒 Engine 🢒 Engine Controls - 2.2L (L43) 🢒 Evaporative Emission Hoses/Pipes Replacement - Engine

Removal Procedure

    Object Number: 407828 Size: SH

    Caution: In order to reduce the risk of fire and personal injury observe the following items:

       • Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes
       • Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel leak.
       • Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115°C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
       • Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.)

  1. Disconnect the engine purge pipe from the evaporative emission (EVAP) canister purge valve.

    2. Object Number: 566052 Size: SH
  2. Remove the engine purge pipe retaining bolt from the intake manifold.
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Disconnect the engine purge pipe from the chassis purge pipe near the fuel composition sensor.
  5. Remove the engine purge pipe.

Installation Procedure
  1. Position the engine purge pipe to the engine.
  2. Connect the engine purge pipe to the chassis purge pipe.
  3. Lower the vehicle.

    4. Object Number: 407828 Size: SH
  4. Connect the engine purge pipe to the EVAP canister purge valve.

    5. Object Number: 566052 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the engine purge pipe retaining bolt to the intake manifold.

    6. Tighten
    Tighten the retaining bolt to 10 N·m (89 lb in).