Generaly 2 possabilities, low coolant level or cloged heater core/hoses. Check low coolant first as this is thew easiest and usually the simplest solution. With the engine cold, remove the rad cap and overflow cap. Fill the rad full and the overflow to the cold level and replace the rad cap and overflow cap. Start and warm up the engine. If you still do not have any heat, then let the engine cool and drain the rad. Remove the heater lines and try to bolw air through them (if cloged, then replace them). If the heater lines are clear, then blow air through the heater core intake and see if you get a good flow out from the heater core, if no, replace heater core.
Posted on Oct 30, 2008
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Posted on Jan 02, 2017
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