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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!
on June 20, 2016
What he said unless real bad and driven without being fixed.
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