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Old 08-06-2018, 09:10 AM   #6
68Gold/white
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Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,284
Re: Original 1987 V10 Silverado, 350/manual...my truck puffs out white smoke? on star

The water leak is a fairly common deal on the throttle body 350/305's that began in 1987 and ended in 1995. IF, IF you are losing coolant, this is a place to look. Some times you will corrosion in area of heater connection before the leak begins.

If your intake gasket has never been replaced (if it were mine...) I would plan ahead time wise and replace the gasket. The intake is aluminum making things easier, but the aluminum can corrode easier, so look at the gasket mating surface on intake carefully before re-installation..........
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