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White smoke coming from exhaust when running

(1990 Chevrolet 2500 Pickup)
in Spokane, WA on June 20, 2016
there is no water showing in the oil. smoke is sweeter smelling.
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on June 20, 2016
Indicative of failed head gasket .. Suggest *combustion leak test*. .. Head gasket failure from coolant passage to combustion chamber will NOT show up in the crankcase oil..! .. A lot of people mistakenly think a blown head gasket will automatically put coolant in the oil .. That's not always the case, especially on a pushrod engine, like the one in your truck! .. However the exhaust 'steam' will surely show the effects!
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on June 20, 2016
What he said unless real bad and driven without being fixed.
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