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A/C not putting out cold air

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Old Sep 10, 2011 | 01:33 PM
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Default A/C not putting out cold air

Here's the details:
'78 Silver Anniversary 350 cc, auto
factory air
made conversion to R134a about 5 years ago.
Current conditions:
86 degrees F, ambient air (outside) - yea, cool day for Dallas!
Low side pressure gauge 28 psi, 32 degrees F
High side pressure gauge 215 psi, 135 degrees F
Engine temp gauge - about 175 degrees F

Inside cabin - a/c air vent - air temp - only 73 degrees F
I am thinking if all were working right, a/c air vent - air temp should be no more than 55 degrees or even lower.

Any suggestions?
Thanks!
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Old Sep 10, 2011 | 09:41 PM
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Is the suction line to the evaporator sweating? If so, you probably have an air damper problem.

What's the air temperature when you turn the a/c off and just have the vent selected?
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Old Sep 11, 2011 | 12:37 PM
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ilangford
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Good idea; will check out! Thanks!
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