Isn't the thicker pipe, with the rubber hose the one with the "L" for low pressure? The thinner pipe is right next to it with an "H" on it.

Ok i see what your saying, what im trying to say is that the tip for the Hi pressure hose is thicker then the tip for the low pressure hose.. anyways just take off the caps and take a look at the hi pressure tip and the low pressure tip and you'll see what i mean... If you buy the r134 freon from auto zone or some place like that, usually they also sell a hose with it and the fitting on the freon hose only fits on the low pressure hose, just take a look at the picture....

Thanks Str8t G.

Another question for you, did you use that big 18oz freon can? Also, if you used around 3/4 of the can, do you just keep the recharge hose attached to the can when you're?

thanks for the pic Str8tG !

so this procedure is the same thing they do when taken to the dealer/auto repair guy? seems easy enough to DIY =)

I did use the 18oz. freon can and i added about 1/2 to 3/4 of the can and the A/C started to blow colder air, if you get the can where the hose is removable and reusable then yes if you dont use the whole can you need to keep the hose attached otherwise the freon will come out of the can, just make sure you tight the little *** on top of the can before you disconnect it from the car!!! I personally used the can where the hose comes attached to it, its like a one time use deal, you probably can find those at autozone.

[QUOTE=richie]thanks for the pic Str8tG !

so this procedure is the same thing they do when taken to the dealer/auto repair guy? seems easy enough to DIY =)[/QUO

It depends, if your just trying to add some freon to make your a/c colder then yeah its a DIY for sure! if your trying to clean out your a/c lines then i would recommend to take it to a a/c specialist. Whenever you add the freon just make sure that you dont overfill it!!!

turn your car on, set the a/c temp to 60F, make sure your a/c button is on, and set the a/c to blow on hi, then pop the hood and attach the freon to the low pressure hose, add 1/4 of the 18oz. can and let the car run for a little bit and check the air thats blowing in the car, see if its getting any colder! My took about 3/4 of the can and i could tell the difference, i didnt want to add more cause i didnt have a gage to check it, so just be careful! good luck and let me know how it worked out...

Using the gauge, what's the reading supposed to be to ensure that the system is fully topped up and not over-filled?

TIA

Never mind.

I just picked up a refill kit.

The gauge is self explanatory.

so ok noob here so to recharge my a/c i just do it on the low pressure one right?

yes, there's almost always instructions on the refill cans to use the low pressure hose

is it recommended to use the one thats recommened for our cars or any one like the one from autozone can be used?

Added freon to system.. And replaced low pressure switch ... AC fan will not come-on and AC clutch Will not engage.... What to look at next ???

http://www.nicoclub.com/archives/inf...e-manuals.html

Section ATC is automatic air conditioner.