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I also have a 2000 commodore. It is very simple. Follow these steps. # First, disconnect the battery of your car. # Take off the radiator cap (the cap on top of your radiator) # Take a small hose (approx. 3ft) # Put the hose in the radiator as far as you can # Suck on the hose until you start to see/taste the antifreeze rise (if you consume any antifreeze contact your local poison control immediately) # There is no drain plug

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2008-11-06 03:41:41
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Q: How do you flush the radiator of a 2000 commodore Where's the drain plug?
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How do you drain Peugeot 307 coolant?

Set the heater control to the hot setting. Remove the radiator cap and then loosen the drain plug on the radiator. If there is no drain plug then remove the lower radiator hose from the radiator. Flush the radiator with tap water from a garden hose. Reattach the lower hose. Remove the thermostat and replace it with a new one. Should be located where the upper hose connects to the engine. Pour in a 50/50 mix of the correct coolant and distilled water. If you buy premixed then just pour that in. Should take 2 gallons. Leave the radiator cap off and start the engine. let it run as you keep an eye on the level in the radiator. Keep adding coolant to keep the radiator full. Watch for escaping air bubbles. Once you see no more bubbles escaping replace the cap. Repeat the bleeding process one more time after you have driven it for at least 10 miles. Do not remove the radiator cap when the engine is hot.

Do you have to flush out a radiactor you got from a junk yard and how do you flush a radiator?

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Sounds like you need a radiator coolant flush or you need a bigger radiator for your vehicular transport thingy.

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Three main reasons for replacing a radiator are 1) it leaks and replacing the radiator cap, hoses/clamps and making sure the drain valve at the bottom is complely shut hasn't stopped the leaks, 2) lots of rust on the lower half, especially on the cooling fins and at weld points where hoses connect, or 3) a radiator flush machine at your oil change shop shows that the flow through it is badly restricted due to mineral and rust buildup and the flush didn't improve it dramatically. Before you replace it, do replace the radiator cap. Sounds silly, but a weak spring or badly worn gasket can give symptoms that look exactly like a radiator about to die from not being able to hold pressure correctly. Inexpensive cap vs radiator? Easy choice. If you end up replacing the radiator, you'll need the new cap anyway.

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