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Antifreeze and Engine Coolant
Chevy Venture
VW EuroVan

What is the special procedure to refill a 99 Chevy Venture cooling system?


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2011-09-15 10:38:34
2011-09-15 10:38:34

The following has absolutely nothing to do with the question asked. Just someone blowing off steam.

First of all there is a lawsuit against dextrol and dexcool anti-freeze that the gm vehicles are using,it causes sludge in the radiator and heater core,and it disolves the intake manifols gaskets.. ! Put the heater control on hot ,so to open the lines to the heater core so it will drain out.. Then drain the system ,there is a small drain valve right under the radiator on the drivers side,drain ,take off the radiator cap,so it will drain faster,..rust and sludge should come out!! .you can close the valve and pour in a radiator flush ,sold at all parts stores,such as Prestone, etc.. or just put a garden hose in the radaitor cop opening .let it run for a couple of minutes,,if your ambitious take off the bottom radiator hose,and alot of water will come out of the block faster,Sometimes I will start my vehicle and let it idle while the engine is running,so the thermostat will open and allow water to go into the engine block...but don't let it overheat!! after about 15-20 minutes let everything drain out ..close the drain valve and leave the heater control on hot , refill the system with anti-freeze.....".Advance Auto Parts" has a replacement anti-freeze , use the one in the yellow gallon jug ,it says for "use in all systems" ...Don,t put that Drexcool or Drextrol back in !!!! I even had my venture drained and refilled at my local Chevy dealer,in the past .it still had that sludge in it..I took it right home and drained out their anti-freeze, and refilled it with Advance Auto Parts brand.Van runs great ..doesn't overheat ...and I have NO Sludge !!! P.S. gp to Google and type in Drexcool, or Drextrol....You'll see !!!

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Probably still has air trapped in the system from an improper refill procedure.

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A 50/50 mixture of antifreeze and distilled water.

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I assume you are referring to a fixed leak in the cooling system. In that case, add a solution of 50% antifreeze and 50% water to refill the system.

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you should mix antifreeze half and half with clean water and fill radiator to full, then add to cold line in the overflow tank


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