Join Date: Jan 2010
Location: Eastern CT
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My method of draining & flushing cooling systems is to feed fresh water into the radiator filler with a garden hose with the engine running, heater on and the drain petcock open.
I adjust the flow so it just keeps up with the loss out of the petcock. I wait until the petcock flows clear and in 10-15 minutes I've flushed the entire system.
Then I turn off the engine and the hose and let the radiator drain. Close the petcock and fill the radiator with straight antifreeze.
With the water in the block & heater it usually comes out about a 50/50 mix w/o messing with heater hoses or block drains.
2006 RAV4 V6 4WD Red Limited - wife's
2006 Accord V6 Hybrid - Dr. Dyno's - quick as the RAV but +8 mpg
2003 Odyssey V6 - handy people & cargo mover
1999 F-250 4X4 Diesel - snow plow, Bully Dog chip
2001 F-250 4X4 Diesel - truck camper, TS chip, 20' bike/trike dyno trailer
2004 Suzuki DRZ-400S Dual Sport
1968 Volvo 1800S
It's the pedal (or the handgrip) on the right!!
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