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Car Forum / Nissan / Nissan Cars / December 20072002 Nissan Altima/NO HEAT
The temp gauge registers at halfway (normal), the upper radiator hose is hot and lower hose is cold. I turn the temp up high and turn the fan on high - but only cold air! Any help or suggestions will be most appreciated thanks to this fine group  Signature"Hey, what am I doing in this hand basket, and where are we going?" Sounds like a thermostat to me . Could be the coolant control valve - looks like a thermostat. Sounds like a thermostat to me . > The temp gauge registers at halfway (normal), the upper radiator hose is hot > and lower hose is cold. I turn the temp up high and turn the fan on high - [quoted text clipped - 4 lines] > > "Hey, what am I doing in this hand basket, and where are we going?" Replace the Thermostat. The lower radiator hose should be warm compared to the hot upper hose, not cold. Radiators are good, but not that good:) CD Why does everyone automatically condemn the t-stat, a plugged radiator could cause the same symptom. hmmm, something to think about. > The temp gauge registers at halfway (normal), the upper radiator hose is hot > and lower hose is cold. I turn the temp up high and turn the fan on high - > but only cold air! Any help or suggestions will be most appreciated > thanks to this fine group my altima was doing the same thing and after spending 175.00 fo analysis and troubleshooting at the dealership determined that the tem control gauge that is used to adjust from cold to hot - was stripped Even though you turned the knob to hot (red) it was still blowing coo air. You have to take apart the display console and remove the entir component It could be that.... -- kathysc I agree it could be a clogged radiator, but in a 2002? Last year I replaced the water pump in my 94 maxima and there was not a single trace of rust or deposits in the cooling system. > Why does everyone automatically condemn the t-stat, a plugged radiator could > cause the same symptom. [quoted text clipped - 11 lines] >>but only cold air! Any help or suggestions will be most appreciated >>thanks to this fine group Thanks to each of you - felt an update and report was in order It ends up being air in the system. A neighbor had experienced the same thing on A Volkswagen Vanagon a few years ago. After getting the air out of the system gradually, refilling after each small trip and getting a new radiator cap, the problem is solved and the heater works fine. thanks again to this fine group. Signature"I shall pass this way but once. Therefore, any good that I can do or any kindness that I can show let me do it now, for I shall not pass this way again." >I agree it could be a clogged radiator, but in a 2002? Last year I >replaced the water pump in my 94 maxima and there was not a single trace of [quoted text clipped - 16 lines] >>>but only cold air! Any help or suggestions will be most appreciated >>>thanks to this fine group
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