K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
being done.
Important:
During 1996, "oil-less" compressors began to be serviced with NO added oil. New part numbers will be issued, and both the box and the compressor
will be clearly marked to indicate that no oil is present. If you receive one of these newer compressors, simply add the normal amount of oil to the
system in Step 5 of the retrofit procedure (8 oz of PAG oil, or 9 oz of PAG oil with V5 compressor). These "oil-less" compressors are compatible
with EITHER R12 or R-134a.
Geo Models
Compressors DO NOT HAVE TO BE REPLACED as part of the retrofit. New compressors are shipped with enough oil to accommodate the entire A/C
system. Do not add additional PAG oil to the system it the compressor is being replaced.
1985-88 Nova, 1989-93 Prizm (S)
1.
Using the Service Manual, remove the following components in the order given:
a.
Receiver/dryer.
b.
Loosen evaporator to compressor (suction) pipe (to be reinstalled)
c.
1985-92 only: Loosen compressor to condenser (compressor discharge) pipe (to be reinstalled).
d.
1985-88 only: Service Valve & Extension Housing on compressor (to be installed).
e.
Compressor (only if being replaced).
2.
Using the Service Manual, install the following components in the order given. Be sure to use new 0-rings whenever a refrigerant connection has
been disconnected.
a.
Compressor (if being replaced).
b.
High and low side adapter fittings (see Step 3 of the retrofit procedure for detailed installation instructions).
c.
1985-88 only: Service Valve & Extension Housing on compressor using new 0-rings. Six small 0-rings and one large 0-ring are required.
d.
Evaporator to compressor (suction) pipe 0-ring.
e.
1985-92 Compressor to condenser
(discharge) hose 0-ring.
f.
Receiver/dryer and 0-rings.
R-134a amount: 85-92 - 650 grams (1.43 lb)
93 - 700 grams (1.54 lb) PAG oil amount: 100 cc (3.0 oz) Parts Required:
Receiver/dryer:
85-88 - 94855761
89-93 - 94855762
Adapter Fittings:
Low Side - 94855760
High Side - 94855759
0-Rings:
85-88 Compressor - Small 0-rings
(6 required) - 94857336 -
Large 0-ring - 94857337
85-93 Receiver/Dryer (2) - 94845949
