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Home >> Chevrolet >> 2008 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L (Diesel) >> Repair Instructions >> Glow Plug Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Underhood Components
    GM1962935Courtesy of GENERAL MOTORS CORP.
    CAUTION: Make sure to confirm that the components are cool and work.
    CAUTION: Refer to Battery Disconnect Caution .
  1. Disconnect the negative battery cable.
  2. Remove engine cover. Refer to Engine Cover Replacement .
  3. Remove the charge air system hoses and ducts. Refer to Charge Air Cooler Inlet Pipe and Outlet Pipe Replacement .
  4. Remove the PCV valve and adapter. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
    Fig 2: View Of Glow Plug Heat Shield And Bolt
    GM1820622Courtesy of GENERAL MOTORS CORP.
  5. Remove the glow plug heat shield.
    6. Fig 3: View Of Glow Plug Wiring Harness
    GM1820624Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the glow plug wiring harness.
    7. Fig 4: Identifying Glow Plug
    GM1820625Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If it is necessary to remove the No. 3 and No. 4 glow plugs, the turbocharger must be removed to gain access. Refer to Turbocharger Replacement .
  7. Remove the glow plug.
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