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ac blows warm at idle, colder with rpm

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Old 06-18-2013, 06:20 PM
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Default ac blows warm at idle, colder with rpm

just bought a 95 civic, suffered from black death

bought a junkyard condenser and rubber lines
bought a new compressor and dryer
flushed metal lines
vacuumed system for 30 min and recharged to .45 kgs

(didnt touch evaporator or expansion valve)

at idle the ac blows warm, rev it up to about 1500 rpm and it will cool to about 45 degrees

while at idle sprayed condenser down with water and didnt seem to have much of a change.

thoughts?
Old 06-18-2013, 06:29 PM
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Default Re: ac blows warm at idle, colder with rpm

I believe that the refrigerant capacity of your A/C system is 0.6-0.65 kg.
Old 06-18-2013, 06:55 PM
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Default Re: ac blows warm at idle, colder with rpm

Originally Posted by RonJ@HT
I believe that the refrigerant capacity of your A/C system is 0.6-0.65 kg.
I agree my civic takes 650g, not enough refrigerant in system
Old 06-18-2013, 07:15 PM
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Default Re: ac blows warm at idle, colder with rpm

also when you replace A/C parts with new ones you are suppose to add oil, did you add any?
Old 06-19-2013, 04:50 AM
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Default Re: ac blows warm at idle, colder with rpm

my mistake i charged the system to .55 kgs this is the max charge according to the sticker under the hood, and yes all components were properly balanced with oil.
Old 06-19-2013, 07:14 AM
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Default Re: ac blows warm at idle, colder with rpm

also the condenser fan is running anytime the ac clutch is engauged
Old 06-19-2013, 08:59 AM
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Default Re: ac blows warm at idle, colder with rpm

Originally Posted by 92civeg
at idle the ac blows warm, rev it up to about 1500 rpm and it will cool to about 45 degrees
What's the idle speed?

Hook up a manifold gauge set and performance test the system:
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