heater not working on 2005 Nissan Altima

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. ?????

by in Victorville, CA on October 27, 2009
2 answers
ANSWER by on October 27, 2009
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
ANSWER by on February 25, 2010
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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