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2005 Nissan Altima Question: heater not working

 

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powerpuff, 2.5L 4 Cylinder, Victorville, CA, October 27, 2009, 10:14
 Rookie

the heater only works while the car is in motion, but as soon as I stop at a red light or whatever, it starts blowing cold air. ?????

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, October 27, 2009, 10:35
     Master

    Hi,
    There is a technical service bulletin (TSB) from Nissan regarding this issue. It involves a thorough diagnostic procedure that needs to be followed to help determine the cause of this issue. Here is some of the info below. I would take this to the dealer or a good shop that has access to this TSB and have them check out your car.
    Bulletin# NTB02-047c Reference: Date: March 7, 2007
    2002 – 2006 ALTIMA; POOR HEATER PERFORMANCE
    Air from the heater on an Applied Vehicle:
    • Takes a long time to warm up after an engine cold start, or
    • Output air cools down and is not warm enough while the engine is at idle, or
    • Output air is not warm enough at any engine speed
    ACTIONS:
    Refer to the DIAGNOSTIC FLOWCHART to determine the course of repair. That course may include all or some of the following:
    • Coolant Mixture Inspection procedure
    • Coolant Mixture Correction procedure
    • Cooling System Bleed Procedure

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  • Medium-star Best Answer
    Visitor, February 25, 2010, 08:03

    i had the same problem and it was easily fixed. it seems that the antifreeze/ water ratio must be what the car recommends. I had to much anti freeze. my uncle took some out put some water and the heater started working properly.

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