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-   -   RECHARGE MY A/C-1991 FORMULA-LOW PRESSURE INLET? (http://www.njfboa.org/forums/showthread.php?t=36500)

edpontiac91 08-23-2008 09:01 PM

RECHARGE MY A/C-1991 FORMULA-LOW PRESSURE INLET?
 
I want to check the A/C pressure with a gauge that looks like a TIRE pressure gauge. It says to use the low pressure inlet side on the acumulator. On my car is that the valve that sticks out by ITSELF and is larger than the one that is attached to a line coming out of it. I looked in my Factory Service Manual, but it does not show a clear picture of which fitting I should attach it to.

BonzoHansen 08-23-2008 09:07 PM

The high & lo valves should be different size.

IMO, if you have to ask you should not touch your AC system.

maroman88 08-23-2008 10:42 PM

the guage only fits on one.... so test that one :)

deadtrend1 08-23-2008 11:33 PM

Has it been converted to R-134A with new fittings???

edpontiac91 08-24-2008 09:56 AM

Quote:

Originally Posted by deadtrend1 (Post 479612)
Has it been converted to R-134A with new fittings???

It still has the R12 original fittings. This piece looks like a large aluminum can with a fitting facing the motor(nothing attached to it)and is the larger of the fittings. The other is attached to a line that is coming out of the can and has a smaller fitting on it.

sweetbmxrider 08-24-2008 01:40 PM

small = low

large = high

like bonzo said, if you don't know a/c you don't wanna mess with it.

JSPERFORMANCE 08-24-2008 07:24 PM

Quote:

Originally Posted by sweetbmxrider (Post 479746)
small = low

large = high

like bonzo said, if you don't know a/c you don't wanna mess with it.


you have it backwards


Quote:

Originally Posted by sweetbmxrider (Post 479746)
like bonzo said, if you don't know a/c you don't wanna mess with it.


edpontiac91 08-24-2008 07:50 PM

Quote:

Originally Posted by JSPERFORMANCE (Post 479827)
you have it backwards

Thanks for the info. If I want to check the pressure with the tire pressure LOOKING tool, that is the one I want. Also is this the fitting I use to attach the line from a 12 oz. can of R12 that I have? They say to use the LOW PRESSURE inlet and I want to be 100% sure. I can't find a good picture of the accumulator with those fittings and lines coming out of it. If anybody could supply a picture(I stink at getting pictures on here)it would be a great help. :nod:

sweetbmxrider 08-24-2008 08:44 PM

Quote:

Originally Posted by JSPERFORMANCE (Post 479827)
you have it backwards

damn it. thats why i don't eff with them!

JSPERFORMANCE 08-25-2008 12:21 AM

:arrow:
Quote:

Originally Posted by BonzoHansen (Post 479550)
IMO, if you have to ask you should not touch your AC system.



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