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Troubleshooting with Gauges FAQ


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.

Recharging Your Car's Air Conditioner - Auto Diagnosis Repair Help


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 ...

Charge as follows: R134A = 1.8 lbs R12= 2.0 lbs No ... - Vintage Air

www.vintageair.com/DownloadsSection/Documents/Troubleshooting Guide.pdf

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 shake ...

R-134a System Pressure Chart | AC Pro


R-134a System Pressure Chart. Temp-pressure-chart-33776F1. r134apc1- 300x196. Previous post Next post. Find a store. Need some help? Ask the pro Call us ...

Part 2. How to properly charge an auto AC R134a refrigerant air ...


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.

Adding Freon to Car AC – Gauge Readings Explained


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, ...

How to Read an R134A Air Conditioning Gauge | eHow


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  ...

R134a Refrigerant Pressure Temperature Calculator


Aug 1, 2011 ... This R134a refigerant calculator determines the gas pressure based on temperature of R134a refrigerant. Includes a Pressure Temperature ...

Car AC Diagnostics | Car Repair Information From MasterTechMark


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 ...

Sanden A/C System Diagnosis (R-134a)


4, Clogged air intake filter. than normal reading on high pressure gauge, lower drive belts. pressure line, thumping noise in ' ompressorc utc Sipping.

Popular Q&A
Q: R134a high and low pressure readings?
A: For a home air conditioning unit 35 psig low and 125 - 150 psig high (depending on outdoor temp) are desirable. Read More »
Source: wiki.answers.com
Q: High and Low side pressure reading on cooler R-134a.
A: High and Low side reading pressure on cooler R-134a. Read More »
Source: www.askmehelpdesk.com
Q: How to Read an R134A Air Conditioning Gauge.
A: R-134a is the refrigerant used in the majority of cars manufactured after 1993. Over time the refrigerant, also known as freon, can become low. When the freon i... Read More »
Source: www.ehow.com
Q: What should the pressure of R-134A to recharge refrigerator?
A: 25 to 36 on the low side 178 to 237 on the high side. Read More »
Source: wiki.answers.com
Q: What pressure can R134 refrigerant make?
A: At 178.2 degrees Fahrenheit, R134a's pressure is 380 PSIG. ! Read More »
Source: www.chacha.com