Update on My A/C issue

Make sure you have enough freon in it. Sounds like it's low.

<[email protected]> wrote in message
news:0d222f65-c95d-43f6-a457-68d5d898addf@j22g2000hsf.googlegroups.com...
> OK, I finally got the A/C working on my '90 Acura Legend...seems it
> needed just a slight shot of refridgerent. Took less than 1 oz. when
> the compressor kicked in. measured 51 degrees at the vent which is
> plenty cold for me. However, after running the air for 10-12 minutes,
> it peters out and blows room temp. After a new start up, maybe 3-4
> hours later, it'll blow ice cold again until another 10 minutes or so.
> So bottom line is...it seems to have enough freon in it to chill down
> the cabin of the car. Something, however is not giving it 'lasting
> power'. Anyone have any idea on what this might be? TIA
> Jay

I dont think you have it adequately charged. WHAT did you use to charge it,
R12??

When you get enough pressure in it, the compressor may turn on for a while
but
you still may have inadequate refrigerant charge. As the process move on,
the pressure
of the refrigerant will decrease as the compressor begins to liquify the
gas.

You need to put gauges on it, make sure you have reached equilibrium

Yes, it was charged with genuine R-12, not the universal stuff.....

maybe you have a leak some where. bad hose, bad seal in the pump.

On Jul 20, 7:59 pm, [email protected] wrote:
> maybe you have a leak some where. bad hose, bad seal in the pump.

I really don't think it could be a leak as it does seem to recover
after you shut down.
Someone suggested it might be the drier? Any thoughts on that?
Jay

On Jul 20, 9:18 pm, [email protected] wrote:
> On Jul 20, 7:59 pm, [email protected] wrote:
>
> > maybe you have a leak some where. bad hose, bad seal in the pump.
>
> I really don't think it could be a leak as it does seem to recover
> after you shut down.
> Someone suggested it might be the drier? Any thoughts on that?
> Jay


> Someone suggested it might be the drier? Any thoughts on that?
> Jay

Yea. First, make sure you have enough freon in it! Sounds like it's
low! 51 degrees is to warm. If it isn't low, then it has to much
moisture in it. Put a drier on it. Any chance the drier has a site
glass? Some imports put drier's with site glasses on well into the
90's.

On Jul 20, 10:02 pm, [email protected] wrote:
> On Jul 20, 9:18 pm, [email protected] wrote:
>
> > On Jul 20, 7:59 pm, [email protected] wrote:
>
> > > maybe you have a leak some where. bad hose, bad seal in the pump.
>
> > I really don't think it could be a leak as it does seem to recover
> > after you shut down.
> > Someone suggested it might be the drier? Any thoughts on that?
> > Jay
> > Someone suggested it might be the drier? Any thoughts on that?
> > Jay
>
> Yea. First, make sure you have enough freon in it! Sounds like it's
> low! 51 degrees is to warm. If it isn't low, then it has to much
> moisture in it. Put a drier on it. Any chance the drier has a site
> glass? Some imports put drier's with site glasses on well into the
> 90's.

Didn't see a sight glass, but I just priced a new drier and they're
well under 15.00 so I'll start there...

[email protected] wrote:
> On Jul 20, 7:59 pm, [email protected] wrote:
>> maybe you have a leak some where. bad hose, bad seal in the pump.
>
> I really don't think it could be a leak as it does seem to recover
> after you shut down.
> Someone suggested it might be the drier? Any thoughts on that?
> Jay

OK first 51 degree vent temperature tells me it isn't charged fully or
you have a bigger problem.
What I would do would be to recover the R-12, see how much comes out
of the system. If the amount matches the label on the compressor then
you have other problems. If however it comes out lower than the tag then
you might want to change out the drier, have the system vacuumed down
and see if it holds. If it holds then you likely don't have a leak. If
not hunt down the leak. Then recharge to the amount on the label and
test the system. You should get credit for the R-12 in the system and
only be charged for any extra.

--
Steve W.
Near Cooperstown, New York

On Sun, 20 Jul 2008 14:37:21 -0700 (PDT), [email protected] wrote:

>OK, I finally got the A/C working on my '90 Acura Legend...seems it
>needed just a slight shot of refridgerent. Took less than 1 oz. when
>the compressor kicked in. measured 51 degrees at the vent which is
>plenty cold for me. However, after running the air for 10-12 minutes,
>it peters out and blows room temp. After a new start up, maybe 3-4
>hours later, it'll blow ice cold again until another 10 minutes or so.
>So bottom line is...it seems to have enough freon in it to chill down
>the cabin of the car. Something, however is not giving it 'lasting
>power'. Anyone have any idea on what this might be? TIA
>Jay

1oz of refrigerant isn't going to make a significant difference to a
cars a/c system. 1oz may kick the compressor on, but it won't get you
back from low cut off to proper charge. You need a set of gauges or
at least a low pressure gauge to get the charge right.

Second though would be that your metering device is clogging up. Again
you need a set of gauges on it to see what is happening.

Steve B.