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flushing the radiator

 
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Old 20 Nov 2011, 04:38 pm
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Default flushing the radiator

Where can I go to find exact instructions on how to flush my radiator myself?
How do you contain all the anti freeze? Are you letting it go down the drain?
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Old 20 Nov 2011, 04:49 pm
My02RedRide's Avatar
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Location: Rochester Hills, Michigan
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Default Re: flushing the radiator

Did mine a month or so ago. I just opened the drain located on right side of radiator down low. Drain old coolant into a large pan and had a couple empty 4 quart jugs and poured into them and sent to local garage to be recycled. I put in 1 small bottle or CLR calcuim lime rust remover and filled system with water then ran engine to operating temp with heater on high and fan on high. That stuff gets the crud out of the rad passages and block. After a 1/2 hour running drained the system again. For added protection I replaced the thermostat. Refilled qith the proper coolant mixed to 50% / 50%. Good to go now.
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Old 20 Nov 2011, 09:41 pm
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Default Re: flushing the radiator

Turn on your heater all the way to hot (so the heater core will also drain). Take off your radiator cap. Get under the front of the car and find the radiator drain cock. Turn it counterclockwise until it stops (it only goes a quarter turn, so don't try to force it beyond this limit). Let the coolant drain into a large container.

This stuff is poison. You cannot put it down the drain or leave it around for kids or pets to mess with. It can kill. Recycle it, since water treatment plants don't remove poison. They just put chlorine in the gray water you use in your day to day drainage.

If your draincock won't drain (mine didn't) try to turn it back (clockwise) midway between the quarter-turn stop, and its original closed position--and pull the darn thing out. Mine wouldn't come out after several tries--so I just closed the draincock back to full closed position and pulled the lower radiator hose. It's a crummy way to have to drain the radiator, but it works.

Tim
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