1996 AC troubles....forced air fades slowly from vents - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ChevyTech · 05-13-2014, 08:03 PM

If the evaporator is dirty, less air flows through it, making easier to freeze up.

When the system was designed, a calculation was made on how much freon flowing through how big of a evaporator would give the best cooling without freezing up. If the evaporator is dirty freezing up becomes easier, and if the temperature is not real hot, then freezing up is much easier.

Good thread with photos on dirty evaporators.
http://www.chevytalk.org/fusionbb/sh...php?tid/282054

Re: Kim57
Did you make sure the blower motor was turning the correct direction?

05-13-2014, 08:03 PM	#15
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,621	Re: 1996 AC troubles....forced air fades slowly from vents If the evaporator is dirty, less air flows through it, making easier to freeze up. When the system was designed, a calculation was made on how much freon flowing through how big of a evaporator would give the best cooling without freezing up. If the evaporator is dirty freezing up becomes easier, and if the temperature is not real hot, then freezing up is much easier. Good thread with photos on dirty evaporators. http://www.chevytalk.org/fusionbb/sh...php?tid/282054 Re: Kim57 Did you make sure the blower motor was turning the correct direction? __________________ For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too.



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