A/C manifold gauges

NASER NASER

MEMBER
2001 INFINITI QX60 HYBRID
6 CYL
2WD
AUTOMATIC
200,000 MILES

Compressor went out, as I always do to most cars I just replace the compressor. The clutch turned as soon as I added some Freon, but looking at the A/C gauges, where there is an eye that shows when Freon is going through, I see clear water looking fluid instead of green Freon. Any ideas? Is it just needing vacuum? Can I just remove ends of the hoses and flush them with air? I just want to make sure I get air before I do anymore work such as changing the dryer and so forth.

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

Hi,

If the system was not pulled into a vacuum after the compressor was replaced then this is most likely moisture in the system. So yes, you need to pull it into a vacuum and then recharge the system. Not only will this pull moisture out of the system but it should hold a vacuum to ensure there are no leaks.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Once you get this done, fill it with the proper amount of Freon and then let me know what your pressures are with the engine off and then with the engine on and AC on MAX.

Thanks