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Old 12-18-2011, 02:15 PM
THK THK is offline
Dodge Ram Forum Member

Join Date: Jun 2011
Location: Out West
Posts: 65
Gender: Male
Vehicle: 02 Dodge Ram
Trim Level: ST
Color: Black
Engine: 2002-2007 287ci (4.7L) PowerTech V8 235hp 295lb/ft
Rep Power: 0
THK is on a distinguished road

I just went through this situation about 2 weeks ago. Being fat, dumb, and happy and with the temperatures on the cold side, I have not checked my fluids lately. About a week ago, I noticed the heater was not producing heat as it normally does. I did notice that the heat output would change with engine rpm. The higher the rpm the more heat. I made a mental note to check the fluids. by the way, mine is a gasser.

On the way home, I noticed a sweet sicking smell, anti-freeze. Ah crap. Hoping it was not the heater core, I got home and started to look for the cause the violated my senses. Interior cab nor wet, no moisture from the vents. Opened the hood and said yes.

Water pump, no. Hoses, no. Coolant reserve tank, low. looked under the vehicle, wet. Radiator side tank gasket went south.

New radiator purchased, flushed the heater core, and 2 hours later, back in business.

Flush the heater core and look for leaks.
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