Forum Discussion
theoldwizard1
Jul 25, 2021Explorer II
Rent a cooling system pressure tester from an auto parts store. With 5he engine COLD, pump up the tester. Your system should hold pressure for at least 30 minutes. Overnight is even better.
Early 3.5L engines would leak coolant into the oil pan. Too much would ruin the engine.
Early 3.5L engines would leak coolant into the oil pan. Too much would ruin the engine.
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