Ford Mustang (1999-2004) Service Manual: Connect

1. Install the A/C tube lock coupling spring.

Spring Lock Coupling

2. Lubricate the inside of the coupling with PAG Refrigerant Compressor Oil (R-134a Systems) or equivalent.

Spring Lock Coupling

3. CAUTION: Use only the new O-ring seals. The use of any O-ring seals other than those specified in the Ford Master Parts Catalog may result in intermittent leakage during vehicle operation.

Install the O-ring seals.

  • Lubricate the O-ring seals with PAG Refrigerant Compressor Oil (R-134a Systems) or equivalent.

Spring Lock Coupling

4. Connect the spring lock coupling fittings with a twisting motion until the A/C tube lock coupling spring snaps over the flared end of the female fitting.

Spring Lock Coupling

5. Install the A/C tube lock coupling clip.

Spring Lock Coupling

    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 with the dimensions corresponding to the coupling size. 3. Assemble th ...

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    Other materials:

    Waxing
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    Pinpoint Test I: LFC 33/DTC B1933 - Passenger Air Bag Circuit Resistance High
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