1990 Toyota Corolla expansion valve replacement

#3
I was unable to find any viable info. I will be changing the expansion valve this weekend with no guide so as soon as I get the valve in I will post what steps to take to remove the valve.
 
#5
I'm pretty sure the whole dash assembly has to be removed which includes: disconnecting the heater hoses and refrigerant lines from the engine side fire wall, detaching the steering column, drivers knee bolster panel, center consol panel and glove box in order to access all the fasteners that secure the dash assembly to the interior side fire wall.
 
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