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    LB7: Coolant Loss; any ideas?

    RKTMech, Thanks for the flash light tip.... I wish I had more info for you, but I just purchased this 03 GMC 10 days ago, so the history is limiited. Some additional info: 03' with 137,500 miles. Appears to be mostly stock with Magnaflow exhaust and Air-raid CAI.
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    LB7: Coolant Loss; any ideas?

    I've read most of the threads on all the prelimary checks for head gaskets or "cups", but situation seems to be a little different. 1. No "hard" upper radiator hose after sitting over-nite 2. No visible leaks on the ground 3. No excess pressure in the over-flow 4. No boiling over out of the...
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