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Heating & Cooling 3rd Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #1  
Old 11-07-2011, 09:22 AM
drisok drisok is offline
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Default Radiator flushing

Trying to be proactive as my truck has over 100K miles, I replaced the antifreeze yesterday. When I drained the radiator and lower radiator hose I only managed to get 2 gallons out of the system.

My question is how do I drain the balance that is sitting in the engine? I flushed the system twice with fresh water to dilute the old antifreeze but each time it is only two gallons coming out.

I have the service manual and it says to remove the cylinder block drain plugs but have no idea where they are located.

I have the 5.7 Hemi.

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Old 11-11-2011, 06:42 PM
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maybe you need to take the termostat out, ohh wait i thinking in the 4.7, but use a radiotor flush by gunk or something similar.
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Old 01-07-2012, 02:01 PM
Sharecropper Sharecropper is offline
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I have an 03 Hemi. I'd be curious to know as well. Any info greatly appreciated.

Thanks
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Old 01-07-2012, 02:09 PM
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Stump3r Stump3r is offline
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The only way to really drop all the antifreeze out of the block is to knock out the frost plugs in the side of the engine. If you do a true flush of the system pull the thermostat so you can get free flow through the entire system.
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