Fan blows but no heat on 2005 Jeep Grand Cherokee

allowed truck to warm up fan blows but no heat. checked for that is fine coolant that was fine.

by in Southfield, MI on November 07, 2013
4 answers
ANSWER by on November 07, 2013
Which engine does it have?
ANSWER by on November 07, 2013
1st does your radiator have a fan shroud, if it does then replace your thermostat. If you are missing the fan shroud then install one to correct. (the fan shroud surrounds the radiator and causes the air to be pulled thru the radiator.)
ANSWER by on November 07, 2013
Check the heater hoses; Both sides should be aprox the same temperature, if one is warm or hot, the other is cold or cooler temp, maybe have clogged heater core. Next have temp actuator checked.
ANSWER by on November 08, 2013
seek diag as there are several issues that can cause this condition
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what else could cause over heating,water pump?temp sending sensor?Fan runs and as engine gets hotter the cooling fan speeds up