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


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  #1  
Old 12-04-2009, 09:07 AM
cw03ram cw03ram is offline
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Default Thermostat question

Am i correct when i say on my 03 ram with the 4.7 that the thermostat is in the lower radiator hose as opposed to the upper gonna replace this saturday, want to make sure of location first thanjs guys?
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Old 12-04-2009, 09:25 AM
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Just look for a housing with two or three bolts at the end of the hose. That will tell you where it is.
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Old 12-04-2009, 03:01 PM
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so no one on here has changed thermostat in 03 ram with 4.7 to let me knoe for sure that it is in lower radiator hose? HELP PLEASE INFO NEEDED?
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Old 12-04-2009, 03:14 PM
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You're correct, it's in the lower radiator hose on the engine end. Undo the two bolts from the housing and pull it off. Look how the old one is installed so you can put the new one in the same direction.
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Old 12-04-2009, 03:20 PM
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Bear in mind you're likely to drown when you pull the lower hose even if you drain the radiator first. You might want to have some extra coolant handy because recovering it all in a drain pan can be difficult. These engines are notoriously hard to bleed the air out of, even with the bleeder plug on the engine side of the upper hose removed. My suggestion is to remove the cap and plug and use a trans funnel to fill the cooling system through the plug until the radiator is full. I've had the best luck going this route if a vacuum lift pump isnt available.
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Old 12-04-2009, 03:56 PM
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Thanks for the info helpful will tear into it saturday.
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Old 12-04-2009, 11:35 PM
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Thats good to know . Thanks .
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