My a/c is in need of a recharge from what I saw in Bismic spread sheet was R-134a with out A/C system sealer

what I didnt see was at what pressure the system needs to be charged to

and I didnt watch all the vids but at what port does it need to be filled at
IIRC I saw one with a Black cap not shure thats the one I want though
and
IIRC R-134a needs to be added on the low pressure side of the A/C pump

Thanks for you help
Benny

 

Not pressure,pounds is what you charge your ac to.when you go to hook up your hoses they'll only go one way.put it on a vacuum for 30min and do a leak check.also add some dye.it'll let you know if and where you have a leak.

 

I hope when I put the gauge to it that I see positive pressure it should
I will check tommorro its on my list I should have a gauge in the garage


its not as cold as it used to be but it does get cold

and the system never been opened/taken apart hope to not have to vac it


I got a bottle of recharge from waly world before when I did the cars worked great I just remember hooking the recharge can to a blue port but thats a car


Steel do you have a A/C vac setup if so where did you get it I do have a vehicle thaat got opened up I recharge without vac the sys and it works but Definatly needs a 30min vac and fill

 

Benny--don't go by the capacity tag on the belt routing under the hood as the system capacity has been raised to somewhere between 42 and 46oz of freon IIRC. IMHO the best thing you can do is find a shop with a recovery machine, have them recover the system completely, and replace to the correct capacity. IF they do it correctly you'll have to pay for very little additional freon and they can add back any oil they recover. If they do find a leak then you can repair it and come back later to have YOUR freon recharged.

 

Not knowing what you'r doing on an a/c system is a good way to get hurt or freeze up an expensive compressor. Sometimes it's worth taking it to a pro or taking some jr. college courses in it as I did.

 

I went to my local automotive store, got a can of freon, put it in and it worked great. Ice cold.

 

As Clint put it, " Do you feel lucky today?"

 

Benny i do what Tyler does , mine has had a leak for couple years and when it doesn't cool any more i just dump 2 cans from wally world and i am good for about 1 month.

 

no shop should just be putting in freon. its starting at $10k fine to do so. freon is an o-zone depleting gas and must be in a sealed system.
correct charge is 2.82lbs
also pressures change with outside temp, elevation and humidity.

 

thanks for the replies Guys

I dont really think the truck has a leak its just 8.5 years old and needs a little recharge

I done that before put a can in from walley mart and it worked Great so thats what I plan to do agagin

where is the port that you guys add the R-134a at


Im going to crawel around the truck in a min hope to find it

I dont have time to play around at the shop gotta do some road trippen here today supposed to 110 in las vegas today Im leaving in a couple hours

 

Not sure if theres a point in asking this....

 

ok went and found the gauge that came off a recharge can and it calls 25-45psi GOOD

I just want to verify 2.83lbs

I guess my problem you had LBS and this I have is PSI

where is the port that I want to add at

thanks for your help guys

 

If it isn't leaking where did it go? Did it magically disappear?

 

high side port in near the right side battery. kow side port is on the dryer thats bolted to the evap case.
once again 2.82 lbs

 

I had a 93 Buick Regal on R12 that I sold in 2006. System was never open or recharged and would blow 40* air on a 100* Austin, Texas day.

Buy the Leak Check bottle IF you decide to recharge it.