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Hi i have a 97 chevy vortc 5.7 and i noticed just today that my coolent is brown lookin could this be a blown head gasket truck doesnt smoke just wonderin if it can blow and not smoke i have a rough idel and a p0300 code i will be doing a compression test later this week

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Drain and change your coolant

Posted on Dec 13, 2014

  • Josh j Dec 13, 2014

    Did that last year with a new thermostate it may just be rust i honestly dont know

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