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.
Hose quick connect coupler and can adapter.
The easy to read gauges accurately measures pressure and monitors condition of refrigerant.
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.
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 chill ezc110 4 car air conditioner hose and gauge for r134a refrigerant recharge kit for cars trucks more reusable.
Once this is done you can now check the pressure gauge.
Start engine and set a c on max cool.
Contains 36 oz of r134a deluxe u charge hose with gauge and instructions interdynamics tup 134dc.
Read instructions if first time user.
Restart the vehicle and make sure the air conditioner is on the highest settings.
A c pro r 134a professional gauge with can adapter features a diagnostic gauge easy to use trigger dispenser 24 in.
Be careful not to pull the trigger at this time as this will release refrigerant from the ac system into the atmosphere.
Idq r 134a automotive air conditioning recharge hose with quik couple connections is for recharging through air conditioning low pressure service port.
Reviewed in the united.
Restart the vehicle and monitor the gauge.
A c recharge kits come with a built in pressure gauge.
If this is the case then you will need to visit a dealership as there are not recharge kits out there yet for 1234yf.
Begin to monitor the gauge by watching for the ac compressor to engage the clutch.
Ez charge r134a direct charge tune up.