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Home >> Cadillac >> 2010 >> DTS 4.6 Y >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System & Fuel System - 4.6L - Repair Instructions - >> Repair Instructions >> Fuel Hose/Pipe Assembly Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Identifying Rivets & Retainers
    GM1672154Courtesy of GENERAL MOTORS CORP.
  1. Install the fuel line to the retainers.
  2. Position the fuel/EVAP lines to the vehicle underbody.
  3. Connect the retainers (3, 4 and 1) to the underbody.
  4. Install NEW rivets (5) securing the retainer (2) to the underbody
    5. Fig 2: Identifying Fuel Fill Pipe Vent Line & Fuel Tank Vapor Line Quick Connect Fittings
    GM1671749Courtesy of GENERAL MOTORS CORP.
  5. Connect the chassis EVAP line quick connect fitting (1) to the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .
    6. Fig 3: Identifying Fuel Feed Rear Pipe Quick Connect Fitting
    GM1671750Courtesy of GENERAL MOTORS CORP.
  6. Connect the fuel feed rear pipe quick connect fitting (1) to the chassis fuel line. Refer to Plastic Collar Quick Connect Fitting Service .
    7. Fig 4: Identifying Fuel/EVAP Pipe Retainer Bolt
    GM1672152Courtesy of GENERAL MOTORS CORP.
  7. Position the retainer to the front of dash.
    8. CAUTION: Refer to Fastener Caution .
  8. Tighten the fuel/EVAP pipe retainer bolt (1).

    Tighten:  Tighten the bolt to 6 N.m (53 lb in).

  9. Lower the vehicle.
    10. Fig 5: Fuel Feed & EVAP Line
    GM1662130Courtesy of GENERAL MOTORS CORP.
  10. Connect the EVAP line (2) quick connect fitting at the EVAP canister purge valve. Refer to Plastic Collar Quick Connect Fitting Service .
  11. Connect the fuel feed pipe (1) quick connect fitting at the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  13. Perform the following procedure in order to inspect for leaks:
    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.
  14. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
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