Materials needed:
• AC Recharge Kit (with refrigerant and a charging hose)
• Safety glasses
• Gloves
Instructions:
1. Safety Precautions:
- Wear safety glasses and gloves to protect yourself from refrigerant
splashes.
- Work in a well-ventilated area.
2. Locate the AC Low-Pressure Service Port:
- Open the hood of your Lincoln Navigator.
- Locate the AC low-pressure service port. It's usually marked with an "L"
or "Low" label. It may have a blue cap.
3. Connect the AC Charging Hose:
- Screw the AC charging hose onto the low-pressure service port. Make
sure it's tightly connected.
4. Refrigerant Tank Preparation:
- Shake the AC recharge kit's refrigerant tank thoroughly before
connecting it.
5. Connect the Refrigerant Tank:
- Attach the refrigerant tank to the charging hose.
6. Check Refrigerant Level:
- Before charging, check the refrigerant level in the system through the
sight glass or pressure gauge (if available on the recharge kit).
7. Start Charging:
- Turn on the engine and let it run for a few minutes with the AC
turned off.
- Slowly open the refrigerant tank valve to start adding refrigerant to the
system.
8. Monitor Pressure/Sight Glass:
- Keep an eye on the pressure gauge or sight glass to monitor the refrigerant
level.
- The system is fully charged when the pressure gauge reaches the desired
level specified by your vehicle's AC system specifications (refer to your
vehicle's owner's manual for the recommended pressure).
- If using a sight glass, it should appear bubbly when fully charged.
9. Disconnect the Charging Hose:
- Once the system is fully charged, disconnect the AC charging hose from
the low-pressure service port.
- Make sure to close the refrigerant tank valve tightly.
10. Safety Check:
- Double-check all connections to ensure they are secure.
11. Test the AC System:
- Turn on the AC and check if it's blowing cold air.
Recharging the AC system involves handling pressurized refrigerant. If you're not experienced in working with refrigerants, it's recommended to have the AC system recharged by a professional automotive technician.
