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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 162 (ENGINE LUBRICATION SYSTEM)SYMPTOM TROUBLESHOOTING INDEX
2008 Chevrolet HHR LT, 2.4 P, Automatic

Symptom Troubleshooting Index

2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Symptom Troubleshooting Index
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
TROUBLESHOOTING CHART

Symptom Diagnostic procedure Also check for
Excessive engine oil consumption
  1. Verify that the engine oil filler cap, oil drain bolt, and oil filter are tight.
  2. Check for oil leaks.
  3. Check for worn valve guide(s) (see VALVE INSPECTION ) or worn valve stem seal(s). (see VALVE INSPECTION ).
  4. Check for damaged or worn piston ring(s) (see PISTON RING REPLACEMENT ).
  5. Check for damaged or worn engine internal parts (cylinder wall, pistons, etc.) (see BLOCK AND PISTON INSPECTION ).
 The correct grade of engine oil
Low oil pressure indicator does not come on with the ignition switch in ON (II)
  1. Do the low oil pressure indicator circuit troubleshooting (Open) (see LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (OPEN)  ).
  2. Test the oil pressure switch (see OIL PRESSURE SWITCH TEST  ).
 An open in the wire between the powertrain control module (PCM) and the oil pressure switch
Low oil pressure indicator stays on
  1. Check the engine oil level.
  2. Do the low oil pressure indicator circuit troubleshooting (Short) (see LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (SHORT)  ).
  3. Test the oil pressure switch (see OIL PRESSURE SWITCH TEST  ).
  4. Check the engine oil pressure (see OIL PRESSURE TEST  ).
  5. Check the oil filter for clogging.
  6. Check the oil screen for clogging.
  7. Check the relief valve.
  8. Inspect the oil pump (see OIL PUMP OVERHAUL  ).
 A wire shorted to ground between the powertrain control module (PCM) and the oil pressure switch
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:

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