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The fan roars when I first start the truck until it warms up. I don't hear it roar like that any time after warm-up. The engine is a remanufacture with a 3 year unlimited mile warranty. They used my old top end. It's leaking oil from one of the head bolts at the front of the engine. The radiator doesn't leak or anything so I'm hoping not to replace it. I'd like to wait until next year before having to spend any more hundreds on this truck. Maybe I'll try a chemical flush. Are they worth the time?
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