A/C - V-5 Compressor Service
Number86-1-2A Date 12/86
Subject: SERVICING OF V-5 AIR CONDITIONING COMPRESSOR
1986 J2000 1.8L (VIN CODE 0) 1985-86 GRAND AM 2.5L (VIN CODE U) 1986 6000 2.5L (VIN CODE R) 1986 FIERO 2.5L (VIN CODE R)
The return program involving V-5 air conditioning compressors terminated September 1, 1985. Some service compressors, however, still contain information regarding the return program. This return information should be disregarded.
When repairing the V-5 compressor, it is suggested that you use the diagnostics contained in the 1986 Service Manual. The 1986 diagnostics are improved over the 1985 Service Manual, but will also pertain to the 1985 model. It is suggested that a notation be made in your 1985 Service Manual to refer to the diagnostic charts on Pages 1B-7 thru 1B-10 of the 1986 Service Manual.
A number of compressors have been replaced that only have a defective control valve. An additional diagnostic procedure for evaluating inadequate system cooling due to the control valve follows:
A. Check for:
1. Blown A/C fuse and/or gauge fuse.
2. Loose or disconnected A/C wire connector.
3. Check blower for fan operation.
4. Engine cooling fan operation, fan operates in all A/C modes as follows:
a. Disconnect engine coolant temperature fan switch.
b. With ignition in on position and engine not running, set A/C control to A/C mode.
c. Engine cooling fan should run.
d. Reconnect engine coolant temperature fan switch.
B. Check that the compressor drive belt is not loose, missing or damaged, and that compressor is not seized.
C. With ambient temperature above 50~F (10~C), check for compressor clutch engagement as follows:
1. Engine running (approximately 1000 rpm) .
2. Set A/C control to "NORM" and "HIGH" blower.
3. Put auxiliary fan in front of vehicle.
4. Observe clutch operation for five minutes.
D. If clutch engages, but does not cycle, install high and low pressure gauges. If both gauges read within 10 psi of each other:
1. Discharge system.
2. Remove and replace compressor control valve.
3. Evacuate and charge system.
4. If problem persists, replace compressor pump assembly.
COMPRESSOR PART NUMBER CHART
HARRISON GMWDD
PART NUMBER PART NUMBER MODEL USAGE
1986 J2000 1131543 12323441
1.8 Engine (0)
1985-86 Grand Am 1131441 12322146
2.5 Engine (U)
1986 Fiero & 6000 1131515 12323436
2.5 Engine (R)
V-5 COMPRESSOR SERVICE PARTS LIST
COMPRESSOR MODEL NO.
PART NO. PART NO. (STAMPED ON
COMPRESSOR-SERVICE QTY W/O CLUTCH W/CLUTCH COMPRESSOR)
85-86 Models W/2.5L
Engine (U & R) 1 2724327 12322146 1131441 (U)
12323436 1131515 (R)
86 Models W/1.8L
Engine (0) 1 2724345 12323441 1131543
Head, Compressor, Rear,
Kit - 2 Switch Type 2724329 All
Includes:
Head Rear (NAS) 1
O-Ring, Head 1 6557662
Gasket, Bolt (NAS) 6
Gasket, Rear Head (NAS) 1
O-Rings Kit, Control Valve 1
Ring, Retainer-Switch 2
O-Ring, Switch 2
Instruction Sheet (NAS) 1
O-Rings & Retainer-Control
Valve Kit 2724330 All
Includes:
O-Rings 4
Ring, Retainer 1
NOTE: NAS - NOT AVAILABLE SEPARATELY
V-5 COMPRESSOR SERVICE PARTS LIST
COMPRESSOR MODEL NO.
PART NO. PART NO. (STAMPED ON
COMPRESSOR-SERVICE QTY W/O CLUTCH W/CLUTCH COMPRESSOR)
O-Ring, Rear Head 1 6557662 All
Control Valve Assembly Kit 2724331 All
Includes:
Control Valve Assembly (NAS) 1
Ring Retainer 1
Thru Bolts and Gasket Kit 2724332
Includes:
Thru Bolts (NAS) 6
Bolt Gasket 6
Gasket Thru Bolts 6 6557379 All
Plug & Washer Assy. Drain 1 6557638 All
Seal, Shaft Kit 2724319 All
Includes:
Seal, Lip (NAS) 1
O-Ring, Seal Seat (NAS) 1
Ring, Retainer 1
Instruction Sheet (NAS) 1
*Switch, HPCO (3.0 AMP) Kit 2724333 1131441
1131515
1131543
*Switch, HPCO (11.6 MA) Kit 2724335 1131451
*Switch, HSLP (3.0 AMP) Kit 2724334 1131441
1131515
1131543
*Switch, HSLP (11.6 MA) Kit 2724336 1131451
*Above Switch Kits Include:
O-Ring Switch 1
Ring Retainer 1
Coil & Housing Assy. Clutch 1 6551997 All
Pulley Rotor & Bearing Assy. 1 6551713 All
Bearing, Pulley 1 6557684 All
Ring, Retainer-Bearing 1 6555329 All
Clutch Driver Assembly 1 6551920 All
Key, Clutch Hub 1 6555320 All
Nut, Shaft 1 6557414 All
Valve, High Pressure
Relief & O-Ring 1 5914435 All
NOTE: NAS - NOT AVAILABLE SEPARATELY
V-5 COMPRESSOR SERVICE PARTS LIST
COMPRESSOR MODEL NO.
PART NO. PART NO. (STAMPED ON
COMPRESSOR-SERVICE QTY W/O CLUTCH W/CLUTCH COMPRESSOR)
O-Ring HPRV (5/PKG.) 1 6555437 All
O-Ring, Suction -
Dishcharge (5/PKG.) 1 5887997 All
Oil, 525 Viscosity QT 5416939 All
NOTE: NAS - NOT AVAILABLE SEPARATELY
V-5 COMPRESSOR:
HARRISON
V-5 COMPRESSOR
SERVICE COMPONENTS