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 MANUALSCHEVROLET2006HHR L4-2.2LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTCOOLING SYSTEMRADIATOR CAPTESTING AND INSPECTION
2006 Chevrolet HHR L4-2.2L
Radiator Cap: Testing and Inspection
2006 Chevrolet HHR L4-2.2LSECTION Testing and Inspection
Pressure Cap Testing
^ Tools Required
- J 24460-01 Cooling System Pressure Tester
- J 42401 Radiator Cap/Surge Tank Test Adapter
- J 46143 Intercooler Reservoir Cap Test Adapter
1. Caution: In order to help avoid being burned, do not remove the radiator cap while the engine and the radiator are hot. Scalding fluid and steam can be blown out under pressure if the cap is removed too soon.
Remove the pressure cap.
2. Wash the pressure cap sealing surface with water.
3. Use J 24460-01 (1) with one of the following attachments (2):
^ J 42401 in order to test the radiator cap
^ J 46143 in order to test the intercooler reservoir cap
4. Test the pressure cap for the following conditions:
^ Pressure the release when J 24460-01 exceeds the pressure rating of the pressure cap.
^ Maintain the rated pressure for at least 10 seconds. Note the rate of pressure loss.
5. Replace the pressure cap under the following conditions:
^ The pressure cap does not release the pressure which exceeds the rated pressure of the cap.
^ The pressure cap does not hold the rated pressure.
RENDER: 1.0x
NO RELATED
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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.