HOw do I remove the expansion valve on a 1989.

Disconnect battery ground cable, then discharge refrigerant from cooling system.
Disconnect intake and discharge lines from cooling unit fittings.
Remove grommets from expansion valve.
Remove shower duct.
Remove I/P lower panel, then glove box.
Remove blower duct.
Remove sealing plates from evaporator unit, Fig. 2.
Disconnect A/C wiring harness from evaporator unit.
Remove drain hose, unit retaining nuts, then evaporator unit.
Reverse procedure to install.

It is in the evap case.

Roy