Removal Procedure

2008 Chevrolet HHR LS, AutomaticSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Engine Wiring Harness & High Pressure Fuel Pump
    GM2035275Courtesy of GENERAL MOTORS CORP.
  1. Relieve the low and high side fuel system pressure. Refer to Fuel Pressure Relief (Without CH 48027)Β  or Fuel Pressure Relief (With CH 48027)Β .
  2. Disconnect the engine wiring harness electrical connector (1) from the high pressure fuel pump.
  3. Remove the engine wiring harness clip (3) from the high pressure fuel pump cover.
  4. Remove the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe ReplacementΒ .
  5. Remove the fuel feed pipe. Refer to Fuel Feed Pipe ReplacementΒ .
  6. Fig 2: High Pressure Fuel Pump & Bolts
    GM1769960Courtesy of GENERAL MOTORS CORP.
  7. Remove and discard the high pressure fuel pump bolts.
  8. Remove the high pressure fuel pump.
  9. Remove and discard the high pressure fuel pump gasket.
  10. Remove and discard the high pressure fuel pump O-ring.
  11. Fig 3: Fuel Pump Roller Lifter
    GM1769961Courtesy of GENERAL MOTORS CORP.
  12. Remove the high pressure fuel pump roller lifter, if necessary.
RENDER: 1.0x

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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.