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#1899386 - 05/22/10 07:29 AM '04 Buick LeSabre Cooling System SemiFlush
Milkman Offline


Registered: 05/20/10
Posts: 265
Loc: Pittsburgh PA USA
Hello All, I am new here, and would like some advise. I have a '04 Buick LeSabre that I bought new and now has about 48,000 miles on it. I have been doing most of the service on it myself, since the car was about 3 years old and the factory service plan expired. Since that time, I have been draining the overflow bottle for the Dexcool coolant and exchanging it for fresh coolant at every oil change. (Every 4 months or so) The first gallon I bought was dexcool and since then I have been using Peak AllMakes. Do you all think I should get a complete system flush ? If so why ? THANKS
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#1899446 - 05/22/10 08:53 AM Re: '04 Buick LeSabre Cooling System SemiFlush [Re: Milkman]
Chris142 Offline


Registered: 06/05/03
Posts: 11471
Loc: apple valley, ca
I don't think that draining and replacing coolant in the overflow bottle is doing much of anything.

IMO you would be better off with a partial drain every once in a while. If you cant get to the drain plug you can stick a small hose down the radiator cap neck and siphon some out.
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#1899454 - 05/22/10 09:06 AM Re: '04 Buick LeSabre Cooling System SemiFlush [Re: Milkman]
OilNerd Offline


Registered: 09/14/09
Posts: 1235
Loc: Plattsburgh, NY
If the goal is to get rid of the DexCool, do a system flush. It's not that bad of a job, really.
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#1899801 - 05/22/10 04:23 PM Re: '04 Buick LeSabre Cooling System SemiFlush [Re: OilNerd]
pbm Online   content


Registered: 04/19/04
Posts: 5254
Loc: New York
Are you replacing it with full strength or 50/50?

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#1899828 - 05/22/10 05:08 PM Re: '04 Buick LeSabre Cooling System SemiFlush [Re: Milkman]
Indiana79 Offline


Registered: 05/07/09
Posts: 36
Loc: central pa
Its very easy to just flush out all the old coolant on this car. Just drop the plastic splash shield (on the underside of the car) which is held on by plastic clips that just pop out with a screw driver which will give you access to the bottom of the radiator. On the bottom of the radiator on the drivers side of the car there is a plastic plug that just screws out which will allow all the coolant to drain into a pan or bucket with out even much splashing going on. It only takes maybe about 30 minutes to do. The hardest part is finding all the clips that hold up the splash shield.

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#1900172 - 05/23/10 04:41 AM Re: '04 Buick LeSabre Cooling System SemiFlush [Re: Indiana79]
Milkman Offline


Registered: 05/20/10
Posts: 265
Loc: Pittsburgh PA USA
Thanks for the help.
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2004 Buick LeSabre Limited (Mine)
2004 Buick LeSabre Custom (Hers)

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