Dye Injection

REFRIGERANT LINES


VQ35HR : Dye Injection

(This procedure is only necessary when recharging the system or when the compressor has seized and was replaced.)
1. Check A/C system static (at rest) pressure. Pressure must be at least 345 kPa (3.52 kg/cm2, 50 psi). 2. Pour one bottle [1/4 ounce (7.4 cc)] of the A/C refrigerant dye into the injector tool (SST: J-41459).
3. Connect the injector tool to the A/C low-pressure side service valve.
4. Start the engine. Then switch A/C ON.
5. Inject one bottle [1/4 ounce (7.4 cc)] of fluorescent dye through the low-pressure service valve using dye injector tool (SST: J-41459) (refer to the manufacture's operating instructions) when the A/C operating
(compressor running).
6. Disconnect the injector tool from the service valve with the engine still running.

CAUTION:
Be careful when replacing the A/C system or a component, pour the dye directly into the open system connection and proceed with the service procedures.
7. Operate the A/C system for a minimum of 20 minutes to mix the dye with the system oil. Depending on the leakage size, operating conditions and location of the leakage, it may take from minutes to days for the dye to penetrate a leakage and become visible.
8. Attach a blue label as necessary.