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I need to know where thermostat is located..... My heater is blowing cold air!

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  • Cars & Trucks Master
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The thermostat is not what regulates the heater in the car! It only regulates the flow of water to the front radiator to cool the engine. Your problem is with the heater core under the passenger side of the dashboard! If the heater valve that is mounted on one of the two hoses that go through the firewall is not functioning, hot water from the engine will not get to that core and the inside fan will deliver cold air. Get it checked out, now that you know (and hopefully, understand).

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

  • 651 Answers

SOURCE: heater blowing cold air

squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way? may be backwards. also may be your sensor.

Posted on Jan 04, 2009

dennymulford
  • 1055 Answers

SOURCE: locating a 2002 chrysler voyager thermostat

trace out the top raidtor hose where it goes too the block and thats where the thermostat is,

Posted on Mar 05, 2009

  • 104 Answers

SOURCE: heater blows cold air have replaced the thermostat

sounds like the controller went bad use temp checker see what your temp is at inlet of heater core from hose

Posted on Sep 08, 2009

  • 8 Answers

SOURCE: heater blows cold air, replaced thermostat &

try to back flush the heater core. and if that dont work check the blend door it see if it is working.

Posted on Oct 15, 2009

  • 1857 Answers

SOURCE: Heater blowing cold air changed thermostat still

you have a blend door actuator that may be bad. Its a little motor that can be a bear to swap out. Unless your pretty mechanically inclined and have the right tools you may want a shop to diagnose this to be sure.

Posted on Dec 29, 2009

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