4 Runner 2WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1992)
Hose/Line HVAC: Technical Service Bulletins
A/C - Suction Hose Nut Change
REF:
HEATING & AIR CONDITIONING
NO:
AC92-003
DATE:
OCTOBER 9, 1992
MODEL:
VN
V6 TRUCK AIR CONDITIONER SUCTION HOSE CHANGE
A production change to improve serviceability was made to the material used for the suction hose nut (evaporator side), from steel to aluminum (Kit #
00883 - 35925).
During installation of the suction hose (P/N 88720 - 35170) to the aluminum threads of the evaporator, the following precautions should be observed:
1)
Hose is properly aligned with the evaporator fitting.
2)
One or two drops of refrigerant oil has been placed on the evaporator threads (ND oil # 6 or equivalent).
Because of the soft nature of aluminum, binding may occur during installation or removal if the above precautions are not observed.