Evaporator Core R E P La C E M E N - GMC 1986 P-Truck Service Manual

1B-48 AIR CONDITIONING
365
364
351. Fittings
352. Clip
353. Screw
354. Cover
355. Nut
Figure 52—C-K Rear Interior Roof Mounted A/C Hoses and Cover Component View
4. Blower motor lead.
5. Ground wires.
6. Rear duct.
7. Battery ground cable.
8. Evacuate, charge and check the system.
EVAPORATOR CORE
REPLACEMENT
Remove or Disconnect (Figures 51 and 52)
1. Battery ground cable.
2. Purge the system of refrigerant.
3. Rear duct.
4. Blower motor lead.
5. Ground wire.
6. R e frig e ra n t lin e s
blower-evaporator assembly (351).
356. Bracket
357. Screw
358. Clamp
359. Hose
360. Strap
of the
at the rear
361. Hose Assembly
362. Seal
363. Screw
364. O-ring
365. O-ring
• Cap or plug the open connections.
7. Blower-evaporator support to roof rail screws.
8. Blower-evaporator (339).
• Place the blower-evaporator upside down
on a work bench.
Lower case assembly.
9.
10 Upper case from the evaporator core.
.
11. Expansion valve inlet and outlet lines.
• Cap or plug open connections.
12. E xp a n sio n valve c a p illa ry bulb from the
evaporator oulet line.
13. Valve.
14. Plastic pins that hold the screen to the core.
15. Screen.
+«- Install or Connect (Figures 51 and 52)
1. Wire screen to the front of the core.
2. Plastic pins.
3. Expansion valve inlet and outlet lines (341).
366. Clip
367. Clip
368. Screw
369. Hose Assembly
370. Hose Assembly
371. Clip
B-06946