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AC not charging...help/info needed
PostPosted: Tue Aug 23, 2011 2:51 pm Reply with quote
97isuzu_4x4
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posted on chp but not sure if everyone is over there as well

so the car never blew ice cold...its been sitting for 6 months up until last week and i figured what was left of the charge just gave out....so I empty a 22oz bottle into it just to get the compressor to engage...then bits and pieces of a 18oz and now while the compressor is off the gauge is reading 80-100...then the comp turns on and it falls down to 45-55 then it shuts off again....my buddy just charged his 00 trans am and the compressor stays on and the gauge reads right at 45

did I overfill it....it the guage screwy....is my compressor foqued

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tcchubb wrote:

you are forgetting i drive a slobra. lol
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PostPosted: Tue Aug 23, 2011 2:58 pm Reply with quote
Diggler
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is that like 4 standard size cans worth of freon? sounds like it may have leaked it right back out. lol

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PostPosted: Tue Aug 23, 2011 3:03 pm Reply with quote
97isuzu_4x4
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when david charged his today it took an entire 18oz can...

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tcchubb wrote:

you are forgetting i drive a slobra. lol
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PostPosted: Tue Aug 23, 2011 5:45 pm Reply with quote
Diggler
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97isuzu_4x4 wrote:
when david charged his today it took an entire 18oz can...
that is feasable. 4 cans is alot, though.
with 134a $16/can i would consider having someone find the leak. (if thats the problem) i think they are going to ban 134 like they did r12.

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PostPosted: Tue Aug 23, 2011 8:44 pm Reply with quote
97isuzu_4x4
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so im kinda fuckin confused.....i went out side and let some of the freon i spent money on out into our fabulous ozone....the compressor now stays on and the pressure is right around 45psi....i guess i overfilled it...i dunno....now that the compressor stays on it blows slightly cooler...but still not cold.

so davids car that blew cool....took an entire 18oz can...now is ice cold
and my car that blew hot as a torch took an entire can and still blew hot...let some out and it blows cooler...

we'll see if it only seems colder because its cooler outside....

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tcchubb wrote:

you are forgetting i drive a slobra. lol
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PostPosted: Tue Aug 23, 2011 8:57 pm Reply with quote
Diggler
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my understanding is, undercharged will be COLDER and overcharged will be warmer. normally as you are adding freon, it will begin to act like it doesnt want to take any more once you begin overcharging it. the compressor cycle pressure switch has a range where it wants the system pressure to be in order for it to open/close. many people overcharge their a/c because they assume its low.

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PostPosted: Wed Aug 31, 2011 12:00 pm Reply with quote
Chris@TDC
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sounds like it may be a bit overfilled still, those cars are very finicky about the a/c, as it doesnt work that great to begin with comparatively speaking.

i'd let a bit more out of it, most of my fbodies like to be around 38-42 psi low side.

make sure the fans are working as well, if they arent then the system cannot make the temperature change effectively.

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AC not charging...help/info needed
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