Ranger 4WD V6-245 4.0L VIN X SFI (1999)
4. Pull the spring lock coupling fittings apart.
5. Remove the O-ring seals with a non-metallic tool.
CAUTION: Do not use metal tools to remove the O-ring tools. They can cause axial scratches across the O-ring grooves resulting in refrigerant
leaks.
6. Remove the A/C tube lock coupling spring with a small hooked wire.
CAUTION: Do not use a screwdriver or similar tool to remove the A/C tube lock coupling spring; this can cause axial scratches across the O-ring
grooves resulting in refrigerant leaks.
CLEANING
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.
2. Cut an abrasive pad from maroon colored 3M Scotch Brite (R) with the dimensions corresponding to the coupling size.
Coupling Size
Pad Size
318 inch
25 X 50 mm (1 X 2 inch)
1/2 inch
25 X 50 mm (1 X 2 inch)