A/C recharge question...

[mconstable]

Hey guys... I got a recharge kit for my A/C... can anyone describe to me where the low pressure port for the A/C is?

Thanks!

 

[Pawpaw]

Take a look at this page from the service manual. Figure 16, item 8.



For what it's worth, you can download the complete service manual from "The Premiere website for Hemi Ram and Hemi SUVs. "



Scroll down in the left fram to find it.



Bob

 

[rono]

Is there a web site like this where you can download manuals for the diesel trucks?

Ron

 

[dcherill]

Is there a web site like this where you can download manuals for the diesel trucks?

Ron

the PDF for the above link has the diesel information in them.

 

[dcherill]

Hey guys... I got a recharge kit for my A/C... can anyone describe to me where the low pressure port for the A/C is?

Thanks!

the hose should only fit on the low pressure side.





on a side note, if your system needs charging, it has a leak, if you use the Autozone charging stuff, it will work, but you will not be able to really fill it fully. you should really have it vaccum evacuated, charged, and dyed. go back in a few weeks to have them look with a blacklight to identify where the leaks are so they can be fixed.



short term, the can stuff is great, got my jeep through a summer, and the fix a leak stuff works great too, i would just not dream on using it on a truck as expensive as my dodge. the jeep is worthless (literally) so I am not going to pour too much $$$ into it

 

[Pawpaw]

the hose should only fit on the low pressure side.





on a side note, if your system needs charging, it has a leak, if you use the Autozone charging stuff, it will work, but you will not be able to really fill it fully. you should really have it vaccum evacuated, charged, and dyed. go back in a few weeks to have them look with a blacklight to identify where the leaks are so they can be fixed.



short term, the can stuff is great, got my jeep through a summer, and the fix a leak stuff works great too, i would just not dream on using it on a truck as expensive as my dodge. the jeep is worthless (literally) so I am not going to pour too much $$$ into it

All very true, except for one small caveat... These trucks are notorious for being low on refrigerant from the factory.



That causes them to not cool very well and freeze up on long highway drives. It took 1-1/2 cans to bring mine up to snuff last summer.



Bob

 

[6naline01]

These are criticaly charged systems,you must evacuate and weigh the charge in according to specs.

 

[dcherill]

All very true, except for one small caveat... These trucks are notorious for being low on refrigerant from the factory.



That causes them to not cool very well and freeze up on long highway drives. It took 1-1/2 cans to bring mine up to snuff last summer.



Bob

I know, Mine froze up last summer, and this spring, was empty.

had it vacuumed, and re-charged, and is now nice and chilly

 

[abrankod]

As an AC tech, I agree, that to get the systems working 100%, you really need to do a full evac and recharge, not just a top-off. The reason the systems may not have been filled enough may be due to non-condensable gases like air being in the system, causing high head pressures, or other issues like oil over-dose or other issue.

-Dan