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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls And Fuel - 3.5L - Repair Instructions) >> Repair Instructions >> Evaporative Emission Canister Replacement (NU6) >> Removal Procedure

Removal Procedure

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    Fig 1: View Of Fuel Feed Line & EVAP Line
    GM1906518Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel tank. Refer to Fuel Tank Replacement (NC7)  or Fuel Tank Replacement (NU6) .
    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. Fig 2: View Of Fuel Tank Wiring Harness & Electrical Connectors
    GM1906519Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the fuel tank wiring harness (1) electrical connectors from the fuel tank module and the fuel pressure sensor.
    7. Fig 3: View Of EVAP Canister Hose
    GM1906556Courtesy of GENERAL MOTORS CORP.
  7. Reposition the EVAP canister hose clamp (1).
  8. Remove the EVAP canister hose (2).
    9. Fig 4: View Of EVAP Canister
    GM1906557Courtesy of GENERAL MOTORS CORP.
  9. Squeeze the small retainer in front of the canister (2) in order to disengage the canister.
  10. Remove the EVAP canister (1).
    11. Fig 5: View Of EVAP Canister & Pressure Sensor
    GM1906558Courtesy of GENERAL MOTORS CORP.
  11. Using a small flat bladed tool, gently pry the fuel pressure sensor (2) out of the EVAP canister (1).
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