GMC 1982 Light Duty Truck Service Manual page 55

IB-12 AIR CONDITIONING
UPPER CASE
E X P A N S IO N
(O R IF IC E )
T U B E
A C C U M U L A T O R
LO W ER
CASE
D R A IN C O V E R
(F L A P P E R )
B LO W ER M O T O R
V A C U U M A C T U A T O R
(M O D E V A L V E )
Chart 1 B-3--Pressure Cycling CCOT System Diagnosis
M O D E V A L V E
,C A S E IN L E T
A N D
D IS T R IB U T O R
M O U N T IN G G A S K E T ,
M O D U L E