Quote:
Originally Posted by theirishscion
I can't really say whether the timing belt replacement has anything to do with it, but I have a theory as to why you are getting different temperatures between the front and the back. As N_Jay pointed out above in the thread, there are two separate evaporators, one front and one back. Both will have separate capillaries/orifices/whatever they're called in this country. That's the very thin opening the liquid refrigerant passes through just before it expands and cools in the evaporator. By their nature, these orifices are very small and susceptible to clogging up with crap, the sort of crap you might easily get thrown into the system by a failed compressor. My suspicion is that the shop that repaired the compressor didn't get all the crap out of the system and that your front evaporator has it's orifice somewhat clogged. The blend door idea would make more sense if it hadn't happened so close to the replacement of the compressor.
I'd love to hear what you find out when you get it fixed.
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ac systems have things called orifice tubes or expansion valves if any blockage were to occur he would not be getting cooling at all. I am almost positive it has to to do with the blend door and or HVAC controls. I've never heard of a timing belt issue causing any of this btw. I do AC work on the side for the past 4 years and can say ac is a totally closed loop system and its not affected by anything other than itself primarily.