1988 PONTIAC FIERO air condition

AIR CONDITIONING "18-23
10. CONTROL
14. LOWER MODE
DIAPHRAGM
16. DEFROST DIAPHRAGM
17. UPPER MODE
DIAPHRAGM
18. RECIRCULATION
5. TO WATER VALVE 19. lfVPUT (VIOLET)
6. A/C ELECTRICAL 20. DEFROST (BLUE)
21. LOWER MODE (TAN)
22. UPPER MODE (RED)
8. RECIRCULATION
DIAPHRAGM J~OZ~~-IB-F
Figure 20 AIC Vacuum Diagram
NG LlCbUlB LINE
Remove or Disconnect
1. Discharge A!C system.
2. Disconnect liquid line couplings at evaporator
and condenser connections.
3. Remove clip holding line to right frame rail.
4. Remove liquid line.
lnstall or Conne&
1. Reverse removal procedure to reinstall. Use
new O-rings lubricated with
525 viscosity
refrigerant oil.
2. Recharge and test system for proper operation.
COUPLED NC HOSE ASSEMBLY
Remove or Disconne&
lnstall or Conne&
1. Reverse removal procedure to reinstall. Use
new O-rings lubricated with
525 viscosity
refrigerant oil.
2. Recharge and test system for proper operation.
Remove or Disconnect
1. Discharge A!C system.
2. Disconnect electrical connection at pressure
cycling switch and remove switch.
3. Disconnect hose and evaporator fittings.
4. Loosen accumulator clamp-bracket screw.
5. Remove accumulator.
1. Discharge
NC system.
2. Disconnect hose assembly at accumulator, con- Install or Connect
denser, and at rear of c6mpressor head. 1. Reverse removal procedure to reinstall. Use
3. Disconnect clamps or straps that hold hose new
O-rings lubricated with 525 viscosity
assembly in position if so equipped, remove refrigerant
oil.
coupled hose assembly.
2. Recharge and test system for proper operation.

1B-26 AIR CONDITIONING
7-FITTING (ENGINE)
13-PIPE ASM - INLET & 8-PIPE ASM - HTR INLET
OUTLET
9-A.I.R. PUMP BRACKET 14-GENERATOR
10-HOSE
- HTR OUTLET
15-GEN BRACKET 11-AIC EVAP TUBE ASM 16-GASKET
12-HOLES (SIDE RAIL)
Figure 23 NC Heater Hoses - V.I.N. S
2. A.I.R. VALVE
3. WATER VALVE
4. RADIATOR
5. AIC EVAPORATOR TUBE
Figure 24 NC Heater Hoses - V.I.N. E

AIR CONDITIONING 1B-29
1. 1.5 N.m (13 LBS. IN.) 8. BRACKET
2. SWITCH
9. AJC COMPRESSOR RELAY
3. ACCUMULATOR 10. BRAKE BOOSTER
4. HARNESS 11.
FUEL PUMP RELAY
5. BLOWER RESISTOR 12. FAN RELAY
6. HI BLOWER RELAY 13. AJC CONTROL
RELAY
7. BLOWER RELAY 14. BULK HEAD
J10255-18-F
Figure 27 A/C Module and Cowl Wiring

18-38 AIR CONDITIONING
ACTUATOR AND INSTALL IN CLIP
4. CORE AND CASE
5. CONTROL ASSEMBLY
10. RETAINER
12. FOLD OVER TO INSTALL
13. MUST BE SEATED
Figure 28 AIC Control Vacuum Harness

1B-32 AIR CONDITIONING
1. CONDENSER 5. TIE BAR
2. RADIATOR UPPER
6. 10 N-rn (7.4 LBS. FT.) MOUNTING PANEL 7. RETAINER
3. INSULATOR 8. "U" NUT
4. RADIATOR SUPPORT 9. CAB
I I J10257-1B-F
Figure 31 A/C Condenser Installation
1. RADIATOR MOUNTING PANEL
2. CONDENSER
3.
17 N.rn (13 LBS. FT.)
4. SWITCH
5. 11 N-rn (8 LBS. FT.)
6. 24 Nsm (18 LBS. FT.)
7. ACCUMULATOR
8. EVAPORATORIBLOWER
Figure 32 Condenser to Accumulator Hose and Pipe Assembly (ALL)

AIR CONDITIONING 18-33
2-COMPRESSOR ASM.
3-HOSE ASM.
4-PIPE CONDENSER
6-23
N-m (17 LB. FT.)
7-FAN ASM.
9-WASH E
R
10-35 Nm (26 LB. FT.)
Figure 33 A/C Compressor & Condenser Hoses -- V.I.N. S
1. ACCUMULATOR
2. 41
N-rn (31 LBS. FT.)
3. COMPRESSOR
4. "0" RING
5. 24 N.m (18 LBS. FT.)
6. HOSE
7. 35 N.rn (26 LBS. FT.)
8. WASHER
Figure 34 A/C Compressor & Condenser Hoses - V.I.N. E, F and 8

1 B-3 AIR CONDITIONING
1. BRACE 6. NUT 20-30 N.rn (15-22 FT. LBS.)
2.
BOLTISCREW 40-50 Nm (29-37 FT. LBS.)
7. STUD
3. BRACKET 8. BOLT SCREW
4.
BOLTISCREW 40-60 Nm (29-44 FT. LBS.) 9. SHIELD ASM FUEL FEED
5. COMPRESSOR ASM
10. PIS BRACKET
Figure 35 NC Compressor Mounting - V.I.N. S
1. 33 N.rn (24 LBS. FT.)
2. 50 Nm (37 LBS. FT.)
3. 83 N.rn (61 LBS. FT.)
4. COMPRESSOR
J10262-10-F
Figufe 36 NC Compressor Mounting - V.I.N. E, F and 8

AIR CONDITIONING 1B-35
I
1 -J-5453 GOGGLES 5-J-23600-B BELT TENSION GAUGE
2-J-6271-01 REFRIGERANT CAN ADAPTER
3-J-6272-02 REFRIGERANT MULTI-CAN ADAPTER
4-J-5421-02 POCKET THERMOMETER
(25" TO 220°F, WHITE BACKGROUND) GLASS
J-22555 POCKET THERMOMETER
(-50" TO +I 20°F YELLOW BACKGROUND) GLASS
J-23640 THERMOMETER
DlAL TYPE (0" TO 220°F)
I
J-6742-03 THERMOMETER DlAL TYPE (25" TO 125°F) 6-J-5420
7/16" - 20
STRAIGHT ADAPTER
J-25498
318" - 24 STRAIGHT ADAPTER
7-J-9459 7/16"
- 20 90" ELBOW ADAPTER
J-25499 318" - 24 90" ELBOW ADAPTER
8-J-7605-03 COMPRESSOR OIL INJECTOR
9-J-26549-C ORIFICE TUBE REMOVER
10-J-26549-10 ORIFICE TUBE EXTRACTOR
(USE COLLAR NUT FROM J-26549-C)
11 -J-34611
A/C VALVE CORE TOOL
Figure 37 AIC Special Tools