09 Redline coolant - top off vs flush - Page 2 - Saturn Sky Forums: Saturn Sky Forum
Saturn Sky Redline Discussion Forum for discussion of aspects of the anticipated hi-performance version of the Saturn Sky.

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post #16 of 24 (permalink) Old 11-29-2018, 09:29 PM
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First things first yes flush, then if that doesn’t do it theres more to it, see if coolant is leaking on ground or internally, I can tell you my 09 Redline Turbo I’ve had since new,at a few K under 50 in 2015 after everything imaginable changed under warranty finally was diagnosed with a cracked block. I changed dealerships to have someone finally care enough to get to the root of the problem. Warranty luckily resulted in $8700 worth of a new engine, not costing me a dime.
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post #17 of 24 (permalink) Old 02-24-2019, 03:12 AM
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My White Sky has been slowly increasing peak temps for about a year. Now it runs 220 + Just driving down the block in cold weather. The fan comes on too!

So, changed thermostat and coolant.

Normal temps of 198 to 199 are now 180 to 184. Sweet!

Now my grey Sky is starting to run at 199 so, next oil change I will get it flushed.

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post #18 of 24 (permalink) Old 02-25-2019, 12:23 PM
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I know the coolant system is a high pressure (closed circuit or something) system. With that if you just wanted to top it off...is it ok to just unscrew the overflow tank and fill from there? Doesn't that introduce bubbles into the system?
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post #19 of 24 (permalink) Old 02-25-2019, 01:21 PM
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I know the coolant system is a high pressure (closed circuit or something) system. With that if you just wanted to top it off...is it ok to just unscrew the overflow tank and fill from there? Doesn't that introduce bubbles into the system?
No it won't. There is always air in that tank but it should be above the level of the coolant. The pickup on that tank that sends coolant into the coolant system is on the bottom of the tank and so long as the level of the tank is maintained where it should be no air should be able to get to that pickup. There is an overflow tube that goes from that tank to the outside even if the system over pressurizes.


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post #20 of 24 (permalink) Old 04-07-2019, 11:32 AM
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Hi , What is the normal range funtion engine temperature of Saturn Sky Redline?
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post #21 of 24 (permalink) Old 04-07-2019, 11:37 AM
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Hi , What is the normal range funtion engine temperature of Saturn Sky Redline?
Mine generally stays at around 200, but will sometimes get up to 220 for a short time.

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post #22 of 24 (permalink) Old 04-07-2019, 06:14 PM
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Quote:
Originally Posted by MattM View Post
I know the coolant system is a high pressure (closed circuit or something) system. With that if you just wanted to top it off...is it ok to just unscrew the overflow tank and fill from there? Doesn't that introduce bubbles into the system?
This is exactly where you should top it off. BUT, this is a BIG BUT, do not do this while the engine is warm. If you do, you release the pressure and hot spots in the engine can allow coolant there to boil - which WILL give you bubbles! Wait at least a couple of hours (or longer) after driving your car.

Owner of "Campbelle", a Brazen 2008 GXP ... with mods piling up...
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post #23 of 24 (permalink) Old 04-09-2019, 08:38 AM
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So my local garage advertises doing a power flush of your cooling system. I had it done on another vehicle a few years ago and I know they flush the system under pressure. I was thinking about having it done on my Redline but I am wondering if I should have any concern since I still have my original water pump. Has anyone had any experience with the power flushing?
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post #24 of 24 (permalink) Old 04-09-2019, 12:14 PM
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So my local garage advertises doing a power flush of your cooling system. I had it done on another vehicle a few years ago and I know they flush the system under pressure. I was thinking about having it done on my Redline but I am wondering if I should have any concern since I still have my original water pump. Has anyone had any experience with the power flushing?
This is my take on it.

Power flushing gets rid of the gunk in your system...it may also git rid of stuff that's keeping your system from leaking. I've always just done a drain of the coolant system...sometimes via suction sometimes not...and then a refill. With our pumps, this is what I'd do too but there is no promise it will keep your pump from failing.


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