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#1
01-31-2008, 06:32 PM
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flush & change COOLANT fluid
ok I will be changing my Thermostat out and I guess it would be good if I change out the ANTIFREEZE as well and from what I read Its a good idea to change the cap even if I dont have a problem true? and to put just water in the system then run and flush once it comes up to operating temp. Where is the drain-petcock on that radiator amd any other pointer you may have well be well used Thanks as always you DUDES are the best! ANT !!!!
 opcorn:
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#2
01-31-2008, 11:03 PM
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Re: flush & change COOLANT fluid
Year, make, model, and engine?
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#4
02-01-2008, 09:39 AM
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Re: flush & change COOLANT fluid
when I did mine, I removed the lower hose from the radiator, took out the thermostat and stuck the garden hose in where the thermostat goes and let it flush right out through the bottom hose, removed the heater core hoses and flushed them both ways as well then ran water through the radiator it self.
I reinstalled the green antifreeze instead of the pink. something to consider. the pink stuff needs to be changed every 3-7 years (respectively) and it has a tendency to gum/clump up and plug the cooling and heating system. I have no problems at all from doing this. I wouldnt nessesarally change the cap, If it is not giving you a problem, why fix it. that is not a common repair problem.
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#6
02-01-2008, 04:24 PM
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Re: flush & change COOLANT fluid
the drain plug should be on the lower left hand side of the radiator. you should be able to see it through the passender side wheel well.
__________________
2000 Chevy Blazer ZR2 Performance Mods: Numerous Suspension Mods: Some, but not enough Exterior Mods: Just Right 1987 Buick Turbo T Dark Red Low 11 sec sleeper  .030 4.1 block, PT6262E, & other odds and ends.... My Cardomain
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#7
02-02-2008, 11:03 AM
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Re: flush & change COOLANT fluid
If you use green ethylene glycol in a system that was designed for Dexcool, you're asking for trouble, and you'll get it, guaranteed! It creates expensive ongoing problems that will continue to haunt you until you completely flush ALL of the green coolant out and replace it with Dexcool. Always use the coolant the engine was designed to use. Here is a great article that explains why NOT to change over from Dexcool to the Green ethylene glycol coolant.
http://free-auto-repair-advice.blogs...label/Dex-Cool The flushing procedure G.A.S. described is great! Dexcool will sludge up if the cooling system is not maintained correctly. The system should be completely flushed and then filled with a 50/50 mixture new Dexcool, every 5 years or 100,000 miles. Dexcool will turn to a brown mud if even a small amount of green ethylene glycol is added by mistake. The radiator cap can also clog up and not regulate the pressure correctly. Cheap insurance just to replace it.
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