Ram 2500 4x4 laramie 5.7 liter
Trying to drain coolant on ram 2500 5.7
liter and it only drained about 2 gal. Of
fluid? Boyh radiator and resevoir caps
ehere open. Why wont it completely drain?
Sometimes during draining the engine can get a vacuum pocket inside the block, Usually taking the thermostat out or removing a heater hose will break the vacuum.
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