A/C Re-Charge

[Bonz099]

The Compressor on my truck is kicking off and on and I i want to recharge the system/find the leak. What should i load the Low side to (PSI) with the compressor engaged? I must have searched 15 different ways and couldn't find any thing documenting this. I also checked my alldataDIY account and couldn't find any solid number to be at.

Thanks in advance guys.

[seth999]

try buying some refridgerant with stopleak in it...the kits at most auto parts chains have gauges showing where it needs to be

[Ironman070809]

its hard to tell cause the pressures cycle its eaiser just to evacuate the system and put the right amount it.....


but here is a little explination
•Normal readings on high and low side with AC OFF (static pressure) - Depends on outside temperature, but normally is between 80-105 PSI
•Normal low side reading with AC on high speed and MAX & engine at 800-1000 RPM’s - Ranges from 25-35 PSI - Note that on many Chrysler products a normal reading on the low side may be 15-25 PSI
•Normal high side reading ranges from 200-350 PSI


Here is a link Adding Freon to Car AC - Gauge Readings Explained |

[Bonz099]

Originally Posted by Ironman070809

its hard to tell cause the pressures cycle its eaiser just to evacuate the system and put the right amount it.....


but here is a little explination
•Normal readings on high and low side with AC OFF (static pressure) - Depends on outside temperature, but normally is between 80-105 PSI
•Normal low side reading with AC on high speed and MAX & engine at 800-1000 RPM’s - Ranges from 25-35 PSI - Note that on many Chrysler products a normal reading on the low side may be 15-25 PSI
•Normal high side reading ranges from 200-350 PSI


Here is a link Adding Freon to Car AC - Gauge Readings Explained |

Freakin thanks, this is exactly what i needed!!!

Now im a bit worried cause i think last time i checked the comp running pressure was at 50psi. Ill check static and see if im lowish.

[Ironman070809]

low pressure just means its undercharged but do you have a hi low gauge set?

[Bonz099]

Originally Posted by Ironman070809

low pressure just means its undercharged but do you have a hi low gauge set?

Just low, but purged the system last night cause it was WAY over charged, and it blows colder than a witches tit in there.


Thanks again for the solid numbers for static and running.

[Ironman070809]

No problem a/c systems suck