06-21-2007, 02:32 AM
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Registered User
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Join Date: Jun 2007
Location: Ohio
Posts: 108
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Clogged Evaporator
Quote:
Originally Posted by Mike Murrell
As far as I'm concerned, R-12 is the only refrigerant to use in a 126 car.
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I beg to differ on my 87 420 SEL I had the same problem and I changed the expansion valve, evaporator, and dryer with new switches.
When I pulled out the evaporator its fins were packed with years of dirt and other debris. Not allowing the blower fan to draw enough airflow to produce a good cooling result at a stand still.
After installing the expansion valve, evaporator, dryer with new switches, vacuuming the system and charging it with 134a my system runs at a cool 42 degrees at the center vents.
I am not suggesting for someone to hire someone to change the evaporator since it is like open-heart surgery and a 22-hour operation and would cost thousands for someone other than yourself to do.
But if you are capable of performing such a task then do so it is well worth it! 
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William
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1987 420 SEL - Like a fine wine only better with age
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