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Loose Radiator Cap

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If all else fails any you are only able to ebb the flow of leaks it’s time to drive back to civilization slowly. Just fill your tank, leave the cap loose (so high pressure does not build and blow out your patches), and watch your gauge. If your engine gets hot, turn it off and let it cool down before refilling the cooling system with water and trying again. With any luck, you may make it 100 yards, or maybe a mile or two, without having to let things cool off.