A secondary scenario could be you have a newer car model you may in fact be using the new 1234yf refrigerant.
Idq refrigerant gauge instructions.
Idq complete r 134a air conditioning manifold gauge set with hoses and quick connects comes with sight glass and a full set of hoses that include 48 inch red and blue hoses and a 72 inch yellow charging hose.
Read instructions if first time user.
If this is the case then you will need to visit a dealership as there are not recharge kits out there yet for 1234yf.
Idq r 134a automotive air conditioning recharge hose with quik couple connections is for recharging through air conditioning low pressure service port.
Restart the vehicle and monitor the gauge.
Be careful not to pull the trigger at this time as this will release refrigerant from the ac system into the atmosphere.
Hose quick connect coupler and can adapter.
Ez chill ezc110 4 car air conditioner hose and gauge for r134a refrigerant recharge kit for cars trucks more reusable.
While charging rotate can between 12 o clock and 3 o clock every two to three seconds while continually agitating shaking the can back and forth.
Ez charge r134a direct charge tune up.
A c pro r 134a professional gauge with can adapter features a diagnostic gauge easy to use trigger dispenser 24 in.
Restart the vehicle and make sure the air conditioner is on the highest settings.
Contains 36 oz of r134a deluxe u charge hose with gauge and instructions interdynamics tup 134dc.
The easy to read gauges accurately measures pressure and monitors condition of refrigerant.
Reviewed in the united.
Interdynamics heavy duty r 134a charginghose has an easy to read extra large gauge the instructions are not 100 clear but after a bit offiddling around i.
The gauge is able to diagnose if a recharge is needed identify the current low side pressure in the system and determine increases in pressure during the recharge process.
Begin to monitor the gauge by watching for the ac compressor to engage the clutch.
A c recharge kits come with a built in pressure gauge.