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05-12-2011, 08:54 AM #1
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silver- 99 ws6
my dex cool is 3 years old however only 15K miles?
car is 99 Trans am WS6
my dex cool is 3 years old however I only have 15K miles on this gallon of dex cool?
should I just go ahead and flush and add a new gallon of Dex cool?
also what are you guy's using to flush the rad.? I read that the alunimin rad is delicate.
ThanksLast edited by qwik219d9; 05-12-2011 at 08:56 AM.
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05-12-2011, 09:51 AM #2
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Navy Blue Metallic- 98 T/A w/ mods, 00 FBVert
Go ahead and flush it for piece of mind.
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05-12-2011, 12:09 PM #3
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silver- 99 ws6
what are you guy's using to flush the rad.? I read that the alunimin rad is delicate.
I have been just kindof rinseing w/ regular water like filling w/ water after draining then run for about 10 minutes then drain then repeat.
Thanks
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05-12-2011, 12:46 PM #4
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Navy Blue Metallic- 98 T/A w/ mods, 00 FBVert
that's what I do.
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05-12-2011, 02:32 PM #5
well to really get rid of all the old fluid you need to take out the engine block drains. There is one behind the alternator against the block. Is a big allen socket ( i think is 19mm). The other one is on top of the starter. You can see it between the starter and the block. for that one you need a 6 inch long 5/16 allen socket. Remove the Tstat from its housing and reinstall the housing back. Turn your a/c all the way to hot so the coolant inside the heater core flushes out too. once you drain all the fluid put the plugs back and close the radiator drain. fill with water and run the engine for a few minutes. turn it off and drain everything again. Repeat until the water comes clear. when done put some teflon paste on the block plug treads and reinstall the tstat. Fill the car with new coolant 50/50 mix. Run the car withou the radiator cap and keep an eye for the fliud to go down when the tstat opens. add fluid as needed and keep checking the fliud level for a few days. Remove the coolant reservoir tank(underneath the battery) and rinse it out. Refill the reservoir to proper level.
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05-12-2011, 03:41 PM #6
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05-13-2011, 03:59 AM #7
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silver- 99 ws6
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05-13-2011, 04:37 AM #8
I usalley turn on the heater are you sure the AC should be on? No it doesn't has to, as long as the heater is working.
I usalley pour the whole gallon in then fill w/ water which is actualley stronger than 50/50 right? well it depends. I believe the last time i did it I used a whole gallon of dexcool and 2 gallons of water. that's 2 gallons of 50/50 right there. I still needed alittle bit more. I think if you are not in the cold weather it should be fine if you add alittle bit more water than dexcool.
isn't there a drain tube under the reservoir tank. no there isn't.Last edited by JayTA98; 05-13-2011 at 04:39 AM.
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05-13-2011, 10:24 AM #9
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silver- 99 ws6
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05-13-2011, 12:57 PM #10
Sure. Remove your battery. the reservoir is pretty much the base where the battery sits on. disconnect the small hose on the passenger side of the radiator neck. you will see 2 bolts(it might be 3 cant remember) on top of the reservoir. Remove the 2 bolts. lift the reservoir by the neck and its out.
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05-14-2011, 01:44 AM #11
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silver- 99 ws6
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05-14-2011, 12:14 PM #12
yes is a good idea to check the reservoir level once a while. I have seen antifreeze as bad as mud. I think any antifreeze can get to that point if is not flush in a a long time. Sometimes that could mean it got contaminated.
I read alot about dexcool and posted questions on this site. I read that was a problem with dexcool back in the day. As long as you flush your system in time I think you will be trouble free.
Is yours that bad?
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05-17-2011, 05:09 AM #13
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silver- 99 ws6
ride around w/ water and get a good rinse
I'm thinking about just draining the old Dex cool filling up rad w/ water an ride around w/ water a few days and get a good rinse.
is this a good plan or just a waste of time?
I will also do the flush routine.
PS my dex cool appears like new nice and clean. the dip stick in resorvior seamed a little dusty and flithy.Last edited by qwik219d9; 05-17-2011 at 05:13 AM.
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05-17-2011, 07:02 AM #14
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PEWTER- 2000 CAMARO SS #3821
I just drain the radiator every season and refill with new 50/50 dexcool, that way I'm mixing it with the engine and it will never be that old. The reservoir however will just sit in there and rot if not changed/rinsed. No air in the system either
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05-17-2011, 07:37 AM #15
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05-17-2011, 07:39 AM #16
I follow the same Todd. I change it every year whether I'm using the 5 year stuff or not, or regardless of mileage.
I simply drain the radiator and block then refill 50/50. I also like to change the thermostat every other time.
I'll only do a flush if I see a problem or buy a car that hasn't had a change in a while. As long as you change it annually, my cooling systems stay looking brand new inside.
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05-17-2011, 08:15 AM #17
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05-17-2011, 08:19 AM #18
Well that is better than nothing. IMO if you are doing a flush to get rid of the old product then you need to remove the old one completely. Do what you are comfortable with. If you are only doing the radiator, drain it, fill it up but dont run it around with water I don't think it will do anything because you still will have old product in the system.
If you can do the Tstat do that as well. This is not too hard to do. I will do the reservoir tank.
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05-17-2011, 08:38 AM #19
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Custom Swirly Black- 2001 WS6 M6
Just had a thought, if your going to be tearing everything apart, I would consider flushing the heater core as well. If your unhappy with heat temp.
Did this to the jeep, using some hose connections and it improved the heat slightly. I was quite amazed what came out that didn't with the usual flush.
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05-17-2011, 01:25 PM #20
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