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Dave, take your truck to a mechanic.
I would if i could find real mechanic.
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Dave, you went to school for this, you should be able to fix it. What gets me is you said it stops using coolant after 1.5qts then what's the problem? Are you over filling it and the 1.5qts is what it is purging? The fact that you say it stops using coolant doesn't make sense. Either it is or it isn't.
Antifreeze smell out the exhaust? Are you sure? Is there white smoke?
You are filling the radiator with water right??
This is just a repeat of your rear end problem thread.
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