Toofasgtp

So i cant get my car to go under 50°F I have taken car to 2 ac people and they both say nothing is wrong. Pressure is fine and not leaking freon, and anything over 30-40° difference from outside temp is perfect. I really find this hard to believe.

Today i was in my friends 98/99 Town and country and this is how cold it is getting.

It is 100° out



And out the vents 35°F

Megafast13

So your freon and ac coolant levels are full?

BradTank

The ES has the best AC of any car I've ever owned, and I live in Arizona. My wife has a newer Lexus GX, and the AC doesn't get nearly as cold as quickly despite having a much bigger system and dark tinted windows.

If your vent temperature is at 50 degrees and it's over 100 degrees outside, it's working properly. Regarding your friend's car, something is likely wrong with the AC on the Town Car, it's not cycling off like it should. Those type of temperatures will likely freeze up the evaporator, manufacturers purposely make it so it doesn't get that cold for a reason.

One easy way to help your ac blow colder is to clean the AC condenser (radiator looking thing in front of your radiator) You can buy coil cleaner at Home Depot for home AC units, it's sprays out with a foam that really gets into all the nooks and crannies. It really does make a difference if it hasn't been cleaned in a while.

You also might want to check your disposable vent filter, if it's really clogged up it can block out a lot of the cold air.

Toofasgtp

Yep and tested by 2 places with a gauge set that it is at spec.

Funny thing is from what i used to know about sight glass systems if it is foamy looking then it is under charged. I looked at it and with ac running 99% of the time it is foamy. Even after i turn the system off it stays foamy for quite a while. This used to be a sign of again under charged system.

I guess i can get a can and add some until the the fluid looks clear.

GoodRevs

Someone remind me, when did they make the switch to R134 from R12, I always forget? My 93 Seville is R12, an older 96 Blazer I had was R134a, so was the mandated switch in 94, 95 or 96? Your 95 could have been R12 and improperly converted to R134a, but sit tight for someone to clarify the year.

Toofasgtp

It was a factory fill R134a

mitsuguy

iTrader: (2)

As a certified A/C tech, I can tell you that anywhere from 40-50 degrees at the vents is working as good as you can expect it... A delta of 40 degrees from ambient is good...

Your friends Lincoln is either too cold or the thermometer is inaccurate... At 35 degrees, the condenser will freeze up if it is even the least bit humid out... It may not happen on short trips, but on longer trips with the a/c not on full fan, it will definitely happen...

There are only a couple things that might not make yours work to its full potential (if it is even capable of getting cooler). One - as mentioned - a dirty condenser... second - a/c cooling fan not working properly (not blowing fast enough)...

Were those pictures taken while you were moving? Was yours tested while standing still - these can affect readings greatly... Also, just to prove a point, I used to take a water hose and spray it on the condenser - doing stuff like that will definitely lower the temperature at the vent, but, will also make it susceptible to freezing up quickly...

All 1995's are factory R134a... 1993 was the last year of R12...

The only way to know for sure that your system has the exact amount of refrigerant is to evacuate everything that is in there, pull a vacuum on the system, and then recharge with the proper amount... Sight glass sucks, and just looking at pressures will tell you if is operating within the correct range, but doesn't necessarily mean it is perfectly filled...

To be sure, though, will cost you around $100ish at most shops... Do NOT just add refrigerant - you could damage the system, and even an ounce or two over and you will see diminished performance as well (not as much room in the system for the refrigerant to expand at the expansion valve)...

Quick note about the sight glass - it was very useful with R12 systems, but I've never been able to use it the same way with a R134 system, which, I believe, is why they did away with it...

ESeries300

dang i need to fix my AC lol

decypher

Maybe a clogged cabin filter?

Toofasgtp

I dont have a filter but i have removed the cover and tried to clean what i could not (no much just a few leaves.

90% of the time i see a 30° drop if on high way i will see a 40° drop.

Cooling fan is working fine. I wonder if adding a higher flowing(more then what the main fain can pull) electric fan to help.