Ford Thunderbird/Cougar 1983-1997 Repair Guide

Spring Lock Couplings



See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Spring lock coupling installation procedure

It will be necessary to obtain a few special service tools such as:

T81P-19623-G1- 3 / 8 inch (9mm)
T81P-19623-G2- 1 / 2 inch (12mm)
T83P-19623-C- 5 / 8 inch (16mm)
T85L-19623-A- 3 / 4 inch (19mm)

The garter spring may not be released if the tool is cocked while pushing it into the cage opening.

  1. Close the tool, then push into the open side of the cage to expand the garter spring. Release the female fitting.
  3. After the garter spring is expanded, pull the fitting apart.
  5. Remove the tool from the disconnected coupling.


  1. Check to ensure that the garter spring is in the cage of the male fitting. If the spring is missing, install a new spring by pushing it into the cage opening. If the garter spring is damaged, remove it from the cage with a small wire hook (do not use a screwdriver), then install a new spring.
  3. Clean all of the dirt from both Of the coupling pieces.
  5. Lubricate and install a new green O-ring seals on the male fitting.
  7. Use only the specified green seals from the manufacture. Any other O-ring may allow leaks IN the system.
  9. Lubricate the male fitting, green O-ring seals and the inside of the female fitting with clean refrigerant oil.
  11. Install a plastic indicator ring into the cage opening if the indicator ring is to be used.
  13. Fit the female fitting to the male fitting, then push and twist slightly until the garter spring snaps over the flared end of the female fitting.
  15. If the plastic indicator ring is used, it will snap out of the cage opening when the coupling is connected to the indicated engagement.
  17. If the indicator ring is not to be used, check the coupling engagement by making sure the garter spring is over the flared end of the female fitting.