Question about antifreeze flushing? Which heater hose? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-19-2007, 11:58 PM   #11
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Thanks everybody, I need to get the nasty pink Dexcool out!
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Old 03-20-2007, 10:54 PM   #12
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I used the more accessible of the two (top one), and flushed with pure water. Then I added the Prestone Cleaner (it'* the one that says "for neglected systems", and you leave it in for 5 or so hours of running time). I ran it for about 5 hours over the course of 3 days, and flushed out for about 15 minutes. I then added some all-makes all-models coolant, and bled the system. It'* about as clean as one could hope for, and started out with some nasty looking Dexmud.
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Old 03-20-2007, 11:22 PM   #13
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One more question, Does this car have a drain plug in the radiator?

I see what looks like a plug/drain in the bottom of the radiator on the driver side.

Havent see one quite like that before.

Anybody remove that or use it to drain the radiator?
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Old 03-20-2007, 11:56 PM   #14
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Yep, that'* the one. Looks sort of like a plastic bolt? It is a bit hard to reach, but is not hard to take out once you do reach it. It makes a bit of a mess as it runs down various wires and supports, so have a large pan.
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Old 04-04-2007, 02:59 PM   #15
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Just wanted to thank everybody for the help. Thats a dirty deed done dirt cheap. I even douched the reservoir and made it look new again.
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Old 04-04-2007, 03:10 PM   #16
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I've always just pulled the upper radiator hose, and stuck a hose on full blast in the raditator and let the car run fo a while until I got nothing but clean water,.. Make sure you're watching your temps though.
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