F 150 2WD Pickup V8-5.4L SOHC VIN 3 (1999)
Coupler HVAC: Service and Repair
Peanut Fitting
DISCONNECT
1. Remove the nut from the peanut fitting.
CAUTION: Support the female fitting with a wrench to prevent the tubes from twisting.
2. Pull the peanut fitting apart.
3. Remove the O-ring seal with a non-metallic tool.
CAUTION: Do not use metal tools to remove the O-ring seal. They can cause axial scratches across the O-ring groove resulting in refrigerant
leaks.
CONNECT
1. Clean all dirt or foreign material from the fittings.