when i let off the gas my heater starts blowing cold air no matter when where or how it always does it
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2004 Nissan Altima Question: why does my heater blow cold air when my engine is idleing?
Answer #1Greg's Orange Auto (11856 Answers) , Orange, CA - (714) 361-9386globalhelper October 30, 2012, 12:31Master
ck coolant level 1st the poss sluggish blend door. scan codes and try blend doors with a scanner to make sure doors are operating properly
Answer #2your.mechanic October 30, 2012, 17:11Master
possible blocked heater core