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Wait until the engine is cool, then carefully remove the radiator cap and fill the radiator with engine coolant to the top of the filler neck.
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Attach the pressure tester (A) (commercially available) to the radiator. Use a small adapter H-901122-09 (B) (commercially available) to attach the pressure tester.
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Apply a pressure of 93−123 kPa (0.95−1.25 kgf/cm
2
, 14−18 psi).
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Inspect for engine coolant leaks and a drop in pressure.
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Remove the tester, and reinstall the radiator cap.
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Check for engine oil in the coolant and/or coolant in the engine oil.
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