2005 Nissan Altima Heating Problems

2005 NISSAN ALTIMA
193,036 MILES • 2.5L • 4 CYL • AUTOMATIC
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MSPHDNOT
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  • 1 POST
When I turn on the heater it takes forever for me to feel anything other than cold air blowing. I know I have my dials set correctly. IF heat comes out at all (which it usually doesn't) it may be a tiny bit or full blown...and then it's gone in about 2-3 minutes, especially when I slow the car down or stop at a stoplight and then it never comes back on. Also, when I turn the car on to defrost and warm up, IT NEVER HAPPENS. So I have to drive to work, scraping and wiping the windshield, not to mention trying to get heat while freezing in the cold air that's blowing out. Very dangerous to do because I can't see the road for the frosted and cloudy windows. Needless to say of the 7-10 minutes it takes me to go to work...I'm wrapped in a blanket and freezing the entire way there. I think I need a new thermostat. Does this sound about right to you? Thank you so much for your time.

P.Davis
Dec 20, 2014 at 3:15 PM
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WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.
Dec 20, 2014 at 6:31 PM
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MSPHDNOT
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Thank you so much for your reply. I don't understand a thing you said. Evidently it's not the thermostat but thank you for your time and getting back to me.

P. Davis
Dec 21, 2014 at 4:14 AM
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