Question about 2005 Nissan Altima
I have a 2005 Nissan Altima 4 cyl. I can only get heat when driving down the road or revving the engine greater than 2,000 rpm or so. The engine coolant gauge is in the normal range. I have replaced both thermostats with the exact same results. Please offer any advice.
Same problem with my 2005 Altima V6, with only 44k miles on it!!! and this is the second winter in the last 4 years that I have to pay for a coolant flush to fix the problem. This time the thermostat is getting replaced too. Time for a new car!
Posted on Dec 02, 2009
If engine temp. is good. i would rec. good flush of the heater core disconnect both heater hoses and flush core in both directions. (pressure washer works good)
Posted on Nov 23, 2008
The problem is traped air in your cooling system that wont let the heated coolant pass thru the heater core at idle it will bypass it. when you get in the gas going down the road it will go pass the air into the heater core when you let off the gas the air keeps it from passing through the core it will bypass the core and still cool engine so if no coolant going through the core no heat. the fix you can raise the front of the car on a set of car ramps remove coolant cap and try to let the air move out of the coolant this takes time. or your dealer can pull a vacum on your cooling system and remove the air . trust me this is your trouble . i hope this helps seems to be alot of people with the same trouble . remember remove the air
Posted on Jan 08, 2013
These cars are very sensitive to incorrect antifreeze mixtures. If you have too much coolant and not enough water the heater performance will suffer. Make sure there is a least a 50/50 coolant water ratio.
Posted on Nov 26, 2008
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