The pressure readings you see when the a/c system is not operating is called ...
R134a low side pressure will be be slightly lower (27 PSI) at this temperature.
On newer R134a systems, the LOW and HIGH side service fittings are ... NOTE:
The high and low pressure readings will vary depending on the system and ...
If the system is overcharged both gauges will read abnormally high readings.
This is causing a feedback pressure on the compressor causing it to rattle or
R-134a System Pressure Chart. Temp-pressure-chart-33776F1. r134apc1-
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Apr 23, 2009 ... Part 2 of "How to properly charge up an auto R134a AC system" using pressure
gauge and off the shelf 12 ounce R134a refrigerant. ... Anyway one car is getting
cold but reading about 430psi on the high & 30 on the low.
Apr 17, 2009 ... Below are normal car AC pressure readings with 134A. ...... Over the winter, my
1990 Ford A/C (converted to R134a) lost pressure, I guess, ...
Observe the R-134a psi reading on the pressure gauge. If it is less than 24 psi,
your system is low and needs additional refrigerant. If your system is within 25 to
Aug 1, 2011 ... This R134a refigerant calculator determines the gas pressure based on
temperature of R134a refrigerant. Includes a Pressure Temperature ...
Feb 10, 2010 ... These pressure readings will vary greatly with humidity and outside .... We are
now on our fifth generation of AC Condensers for R134a ...
4, Clogged air intake ﬁlter. than normal reading on high pressure gauge, lower
drive belts. pressure line, thumping noise in ' ompressorc utc Sipping.