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Unread 09-10-2006, 02:23 PM   #1
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Default Coolant flushing ...

Anyone here do their own coolant flushing? If so, how long does the whole process take? I mean from draining the old stuff, to flushing w/ radiator flush, to flushing once more w/ clean water to adding the new stuff. Sounds time consuming, what's your take on the matter?
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Unread 09-10-2006, 05:02 PM   #2
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20 min about... all i do is remove or loosen the drain plug at the bottom of the radiator, then hook a garden hose to the fill cap or even remove the top rad. hose and squirt through there. once the radiator is empty, crank the motor once to get all the dirty old fluid out of the engine block.

Then flush all you want and refilll after connecting the hoses or re tightening the drain plug. Then fill it back up, crank the motor and let it run a few seconds, then check fluid level and add as needed.
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Unread 09-10-2006, 05:10 PM   #3
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If the cooling system on the car is in good shape I would recommend only doing an fluid exchange. If the cooling system is rusted with lots of calcium deposits showing in the radiator then a radiator flush is needed.

Doing a fluid exchange is pretty simple, just drain all the coolant by disconnecting the lower radiator hose at the radiator. Then replace the coolant.

If your going to flush the cooling system follow the same procedure as above except fill with water and your radiator flush and follow the flush directions. Then after the flush drain by removing lower radiator hose, then add the fresh coolant.

But to get back to your question, it would be a time consuming. If you took it to a professional it would take about 30 minutes to exchange the coolant with a coolant flush machine. About an hour if it needed a complete radiator flush. Also you wouldn't have to find a place to dispose the old coolant.

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Unread 09-10-2006, 07:57 PM   #4
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After how many miles would you recommend doing a fluid exchange (not a flush) on a new car?

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Unread 09-10-2006, 08:30 PM   #5
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Most newer cars have long life coolant/antifreeze. Recommended flushing at 100.000 miles. Don't believe it. If it were my car I would change the coolant (talking about long life) at least every 50,000. Most vehicles before 2000 MY every 30,000 miles. (IMO)

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Unread 09-11-2006, 01:18 AM   #6
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I hva emade an addapter to my lower raditaro hose. this allows me to revers flush the system which will usually get rid of deposits that get missed in a standard flush. Also when you refill the system use distilled water and a water wetter then run for 20 minutes and drain it while it is running if you can. while filling the radiator. then turn off themotor and will with distilled water with a water wetter and let sit for a few hours.the alcahol will disolve anythin that has built up. then after youcompleta ll this drain again and fill up with 5050 mixture of coolant to water. if you live ina area with non freezing winters just use about a 20 percent coolant to water ratio. look for oil in the system. if there is youc ould hava a small head gasket leak. I currently have one. if you have on edrive it well below the full RPMs this may help let you save for repairs. if you are loosing pressure in the engine remove the thermostat to allow for it to flow better. if it starts overheating rev the engine and it should take care of it.
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