Question about 2008 Nissan Pathfinder
When turning on the heater, the system blows cold air. The heater hoses are getting hot but it blows cold
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Posted on Jan 02, 2017
your fan motor is shot, motor has bad brushes replace it, if u feel its still not hot, drain your rad and but a 28 oz bottle of pine sole and add water till full, run it for about 20 mins. drain, run strait water, drain, then put anti frezz in with water, 50/50 mix or mix your own. it should clean your cooling system compleatly out.. do not turn heat on while pine sole is running throw it, gives of a bad smell.
Posted on Jan 28, 2009
It sounds like the fix is a simple one. Just change the thermostat. If you don't know how to do this go to an auto zone or similar auto parts store and they will assist you. good luck and please rate my answer.
Posted on Feb 06, 2009
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.
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Paul 'W' U.K
Posted on Feb 24, 2009
Sounds like either your thermostat, which is the least expensive and easiest thing to change, or your water pump, or clogged radiator, which is a whole new world! The reason it wont blow hot, is because you are not getting any water to the heater core. Hope this helps.
Posted on Dec 28, 2009
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