2005 Saturn L300FACTORY OEM SERVICE PROCEDURE

Removal Procedure

    Fig 1: Removing/Installing Intake Hose Assembly
    GM894285Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable.
  2. Remove the inlet hose assembly from the throttle body.
  3. Disconnect the throttle body electrical connection.
  4. Disconnect the hose clamps from the plenum-to-runner connector using theJ 43914Β  .
  5. Fig 2: Removing & Installing Intake Plenum
    GM896435Courtesy of GENERAL MOTORS CORP.
  6. Remove the intake plenum bolts.
  7. Remove the EGR passage bolt.
  8. Rotate the plenum up and remove the throttle body coolant hoses, EVAP hose, and vacuum line from the throttle body.
  9. Fig 3: Removing/Installing Throttle Body Assembly
    GM894807Courtesy of GENERAL MOTORS CORP.
  10. Remove the throttle body nuts.
  11. Remove the throttle body.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.