Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008HHR LS, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 14 (ENGINE MECHANICAL - 2.0L)REPAIR INSTRUCTIONS - OFF VEHICLEENGINE BLOCK CLEANING AND INSPECTION
2008 Chevrolet HHR LS, Automatic
Engine Block Cleaning and Inspection
2008 Chevrolet HHR LS, AutomaticSECTION Engine Block Cleaning and Inspection
WARNING: This page is about a different variant/trim than selected.
Tools Required
- J 7872 Magnetic Base Dial Indicator. See Special Tools .
- J 8087 Cylinder Bore Gage. See Special Tools .
- Clean the sealing material from the gasket mating surfaces.
- Clean the engine block and lower crankcase in a cleaning tank with solvent appropriate for aluminum.
- Flush the engine block with clean water or steam.
- Clean the oil passages.
- Clean the blind holes.
- Spray the cylinder bores and the machined surfaces with engine oil.
- Inspect the threaded holes.
- Clean the threaded holes with a rifle brush. If necessary, drill out the holes and install thread inserts. Refer to Thread Repair .
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.