GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Engine 🢒 Engine Controls and Fuel - 3.5L 🢒 Evaporative Emission Canister Replacement

Evaporative Emission Canister Replacement NC7

Removal Procedure

    Object Number: 1575957 Size: SH
  1. Remove the fuel tank. Refer to Fuel Tank Replacement.
  2. Disconnect the evaporative emission (EVAP) line (3) from the canister. Refer to Plastic Collar Quick Connect Fitting Service.

    3. Object Number: 1575959 Size: SH
  3. Reposition the EVAP canister hose clamp.
  4. Remove the EVAP canister hose.

    5. Object Number: 1575960 Size: SH
  5. Disconnect the canister EVAP line from the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service.
  6. Squeeze the small retainer in front of the canister in order to disengage the canister.
  7. Remove the EVAP canister.

Installation Procedure

Caution: 

   • Do not attempt to straighten kinked nylon pipes. Replace any kinked nylon pipes in order to prevent damage to the vehicle.
   • Do not attempt to repair sections of nylon pipes. Replace damaged nylon pipes.
   • Replace the vapor pipes with original equipment or parts that meet GM specifications.
   • Replace the vapor hoses with original equipment or parts meeting GM specifications. Use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163M on the hose.


    Object Number: 1575960 Size: SH
  1. Install the EVAP canister.
  2. Squeeze the small retainer in front of the canister in order to engage the canister.
  3. Connect the canister EVAP line to the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service.

    4. Object Number: 1575959 Size: SH
  4. Install the EVAP canister hose.
  5. Position the EVAP canister hose clamp.

    6. Object Number: 1575957 Size: SH
  6. Connect the EVAP line (3) to the canister. Refer to Plastic Collar Quick Connect Fitting Service.
  7. Install the fuel tank. Refer to Fuel Tank Replacement.

Evaporative Emission Canister Replacement NU6

Removal Procedure

    Object Number: 1906518 Size: SH
  1. Remove the fuel tank. Refer to Fuel Tank Replacement.

    2. Note: Note the routing of the lines for installation.

  2. Disconnect the EVAP line (1) quick connect fittings from the fuel tank module and the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service.
  3. Remove the EVAP line assembly (1).
  4. Disconnect the fuel feed line (2) from the fuel tank module. Refer to Plastic Collar Quick Connect Fitting Service.
  5. Disengage the fuel feed line from the retaining feature (3) built into the fuel tank and remove the fuel line (2).

    6. Object Number: 1906519 Size: SH
  6. Disconnect the fuel tank wiring harness (1) electrical connectors from the fuel tank module and the fuel pressure sensor.

    7. Object Number: 1906556 Size: SH
  7. Reposition the EVAP canister hose clamp (1).
  8. Remove the EVAP canister hose (2).

    9. Object Number: 1906557 Size: SH
  9. Squeeze the small retainer in front of the canister (2) in order to disengage the canister.
  10. Remove the EVAP canister (1).

    11. Object Number: 1906558 Size: SH
  11. Using a small flat bladed tool, gently pry the fuel pressure sensor (2) out of the EVAP canister (1).

Installation Procedure

Caution: 

   • Do not attempt to straighten kinked nylon pipes. Replace any kinked nylon pipes in order to prevent damage to the vehicle.
   • Do not attempt to repair sections of nylon pipes. Replace damaged nylon pipes.
   • Replace the vapor pipes with original equipment or parts that meet GM specifications.
   • Replace the vapor hoses with original equipment or parts meeting GM specifications. Use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163M on the hose.


    Object Number: 1906558 Size: SH
  1. Lubricate the fuel pressure seal with a very small amount of clean engine oil.
  2. Install the fuel pressure sensor (2) to the EVAP canister (1).

    3. Object Number: 1906557 Size: SH
  3. Install the EVAP canister (1).
  4. Squeeze the small retainer in front of the canister (2) in order to engage the canister.

    5. Object Number: 1906556 Size: SH
  5. Install the EVAP canister hose (2).
  6. Position the EVAP canister hose clamp (1).

    7. Object Number: 1906519 Size: SH
  7. Connect the fuel tank wiring harness (1) electrical connectors to the fuel tank module and the fuel pressure sensor.

    8. Object Number: 1906518 Size: SH
  8. Install and connect the fuel feed line (2) to the fuel tank module. Refer to Plastic Collar Quick Connect Fitting Service.
  9. Engage the fuel feed line to the retaining feature (3) built into the fuel tank.
  10. Install and connect the EVAP line (1) quick connect fittings to the fuel tank module and the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service.
  11. Install the fuel tank. Refer to Fuel Tank Replacement.