I have a 2001 3500 Diesel. I am going through a gallon of antifreeze about every 600 miles..but no signs of leak. The oil isn't contaminated, and the exhaust doesn't smell "sweet". I would appreciate any help that anyone can give. THANKS..
It's highly unlikely in an '01 but you could have a cracked 53 block. that's about how much coolant mine was going through, and it rarely left any puddles on the ground. Usually the only time one of these blocks would leak is before the t-stat opened, and the engine was under a load, making the leak very hard to find.
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