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Author Topic: Change antifreeze  (Read 3107 times, 8 Replies)
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martyouel
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« on: April 24, 2013, 01:11:52 PM »

Hi,

I'm just over 100 000 km on my Acadia and I want to change the antifreeze.

I searched for any good "HOWTO" article, but didn't find anything.

Does anyone has a good article for doing that ?

rbarrios wrote a very nice post for transmission oil change on this forum ... so I'm looking for something similar to learn how to correctly change my antifreeze.

Thanks,

Martin
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rbarrios
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« Reply #1 on: April 24, 2013, 01:33:03 PM »

I have not created one on the Lambdas yet-- as im not at the 5yr or 150,000 mile range. (Dexcool is now rated at 150K)

But If I was to do it today- with say 100,000 miles--- and knowing the system has no leaks
I would look into draining the system via the lower radiator hose.
I would not even bother flushing the system.

But with most coolant drained- and 100K--- I would probably even consider changing the thermostat.


I have not looked to see if theres a drain valve on the radiator on these vehicles.

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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
compnurd
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« Reply #2 on: April 24, 2013, 02:24:09 PM »

I have not created one on the Lambdas yet-- as im not at the 5yr or 150,000 mile range. (Dexcool is now rated at 150K)

But If I was to do it today- with say 100,000 miles--- and knowing the system has no leaks
I would look into draining the system via the lower radiator hose.
I would not even bother flushing the system.

But with most coolant drained- and 100K--- I would probably even consider changing the thermostat.


I have not looked to see if theres a drain valve on the radiator on these vehicles.



There is No drain valve so yes the easiest way is to remove the lower hose from the stat and yes for the 40 bucks I would replace the T-Stat also.  it is REALLY easy.

If the coolant looks clean i would not flush it either..  otherwise just flush some distilled water through it
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rbarrios
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« Reply #3 on: April 24, 2013, 02:41:53 PM »

I will say-- that I believe on the DI engine vehicles (2009+)- the HPFP-- may be a little in the way.. as the HPFP sits right above the thermostat.

heres the sound deadening stuff over the HPFP- the thermostat assembly lies below it.

In the pic- you can see the throttle body
right by it- you can see that foam looking block-- that is covering the HPFP.
on a side note---(The high pressure side of the DI engine fuel lines are 1 use only--- so dont remove/loosen these unless youre really working on the HPFP- or youll be buying new expensive connections)...
but below this block is the thermostat.

You can see the shiny pipe that leads to the thermostat--- you can also see a clamp with a rubber hose attached to it.

below my 2010 engine pic  is the Thermostat on Ponchonuttys Outlook.


if you have trouble figuring out whats what..
compare the location of the transmission cable mount bracket in both pics.









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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
martyouel
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« Reply #4 on: April 24, 2013, 03:05:05 PM »

Thanks again.

Nice pictures.

I'll take a look on mine and if I feel comfortable I'll do it...otherwise I'll ask help to my mechnical neightbor.

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rbarrios
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« Reply #5 on: April 24, 2013, 03:17:32 PM »

you havent mentioned the model year on yours...

but heres what Ponchonutty said on his thread about it


http://www.saturnoutlookforum.net/index.php?topic=2238.0
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
martyouel
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« Reply #6 on: April 25, 2013, 06:58:18 AM »

That's nice.
My Acadia is a 2008 SLT

Nice post.

Thanks again. When I'll get the time to do this I'll give some news.

With young kids at home I'm always looking to get time Smiley

I have some maintenance to do on my acadia (transmission fluid, brake maintenance, coolant), I will go step by step Smiley
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Geedoc
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« Reply #7 on: January 23, 2014, 09:39:06 PM »

Is it necessary to change the thermostat housing in order to change the thermostat? Can one just buy a new thermostat and gasket and install in the old housing?
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rbarrios
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« Reply #8 on: January 23, 2014, 10:21:41 PM »

if I remember from that older post..
I believe its the whole assembly shown in the pic...
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
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