1999 Dodge Ram Logo
Posted on Oct 23, 2009
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I have a 1999 dodge ram with a 460. I have very little heat and there is a mist that comes out of the vents when i turn the heater on. I unhooked the heater hoses and ran water through the core and it ran through with no problem. about 2 years ago I changed the water pump and put in a new thermostat. Last week I changed it again thinking that it was a falty one. This didn't help. When the top hose is hot the bottom one is cold even after 15 minutes of constant running. Can this be a problem?

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Your heater core is bad. It's leaking coolant that the cause for the mist coming out the vents

Ronny Bennett Sr.

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  • Posted on Oct 23, 2009
Ronny Bennett Sr.
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The hoses might have a heater control valve on one ofthem,check and see,an you may have to replace it.Also make sure there is enough coolant in the system,it will not flow threw the heater core if there is not enough coolant in the system,the mist could be the hole in the heater core.

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