Pontiac Repair: Draining and flushing coolant, 96 Pont Transport, sodium silicate, shop vacs


Question
QUESTION: Where is the best place to open the coolant system to drain it.
Recommendations for flushing prior to installing Sodium silicate sealant.
Pontiac says to avoid silicates in the coolant.  So reflushing thoroughly is important.

ANSWER: should be a petcock on the lowere left or right side of the radiator that will allow you to drain the coolant

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QUESTION: Wrong but thanks.
We have to drop the lower radiator hose, heater hose from the diveter, and the hose from the overflow tank.  The cavities can be cleared with a shop vac (blower side) to each hose.
Complete drain and dry is important for some leak sealers.
Jim  

Answer
sorry i could not pinpoint you in the right direction, we typically do not use shop vacs for coolant as it is considered hazerdous waste and we also do not reccomend coolant sealers as they tend to block head passages and heater cores causing failures, best of luck.