10-16-2013, 09:00 AM
Join Date: Aug 2006
Location: South Carolina, USA
work temporarily BUT! If the system is depleted of freon (or nearly so), there is not only a leak
, but possible air in the system that requires evacuation. And if the system has been without a charge for any length of time, then the dehydrator is also compromised.
Even with all that said, a PROPER charge can not be determined without gauges connected to both
the high and low side ports, in order to achieve the correct charge state and by having a working knowledge of freon pressure / temperature relationships in key locations of the system.
Also, an overcharge (which is easy to do in the hands of the inexperienced) will do more harm
than good FWIW.
'99 Grand Vitara JLX, 2.5L V-6, 4WD, 5 spd std, '00 "Limited" leather interior
'72 Nova. SB, TH-350, PB, PS, A/C.