Nissan Repair: a/c wont blow out clod air, nissan titan, 2004 nissan titan
Questiona/c wont blow out cold air when waiting in traffic. 2004 nissan titan 5.6
AnswerDouglas,
The refrigerant R-134 is not as thermally efficient as the old R-12. So, when you are not running down the road it is close to not working. That is, if the system is a little low or the auxillary fan is not coming on will lead to no interior cooling until you get rolling.
I would first have the system pressures checked to have the unit topped off.
Second, I would be looking at that front fan to see if it is coming on while you are at idle.
Email me back and let me know what you find.