B2300 L4-2.3L VIN D (2004)
5. Remove the O-ring seals with a non-metallic tool.
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There are three O-ring seals required for the A/C condenser core couplings.
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There are two O-ring seals for all other refrigerant tube couplings.
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.
6. Remove the A/C tube lock coupling spring with a small hooked wire.
Cleaning
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.
2. Cut an abrasive pad with the dimensions corresponding to the coupling size.
3. Assemble the pad to the tool.
4. Coat the abrasive pad with R134a refrigerant oil.
