CAUTION
Always allow the van to sit and cool for an hour or so (longer is better) before removing the reservoir tank cap. To avoid injury when working on a warm engine, cover the reservoir tank cap with a thick cloth and turn it slowly counterclockwise until the pressure begins to escape. After the pressure is completely removed, remove the cap. Never remove the cap until the pressure is gone. There should be no excessive rust deposits around the cap or tank filler hole. The coolant should be free from any oil. On a COLD engine, place your finger in the coolant and check for oil or rust deposits.
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Check the levels on the reservoir tank for fluid capacity
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It's best to check the coolant level when the engine is COLD. The radiator coolant level should be between the LOW and the FULL lines on the reservoir tank when the engine is cold. If low, check for leakage and add coolant up to the FULL line but do not overfill.
NOTE: Check the freeze protection rating of the antifreeze at least once a year or as necessary with a suitable antifreeze tester.
