keithabner1

truck will show normal range on temp gauge but still not blow hot air from heater, going down the road gets colder, have checked thermostat working fine covererd radiator to make overhheat still will not change tempature of heat blowing out of heater

360ci

heater core might be on its way out or its already gone - or a previous owner bypassed it and drove it during the warmer weather.

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'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!

wwb

Or, the temp control isn't working.... there's a little "flapper" that controls the mix of air coming straight from the outside and air passing through the heater core.

If it's currently in the "cold" position and the cable or servo that is supposed to move it doesn't work, you won't get any heat.