1964 CHEVY IMPALA

1964 CHEVY IMPALA
GEN IV w/ FACTORY AIR
564064
IMPALA
18865 GOLL ST. - SAN ANTONIO, TX. - 78266 ph.210-654-7171 - fax 210-654-3113
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 1 OF 25
1964 IMPALA
PAGES
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w/ AC
Table of Contents
COVER
TABLE OF CONTENTS
PACKING LIST / PARTS DISCLAIMER
INFORMATION PAGE
WIRING NOTICE
ENGINE COMPARTMENT
FIGURE 1
CONDENSER ASSEMBLY, COMPRESSOR & BRACKET, PULLEYS, & PASSENGER
COMPARTMENT
FIGURES 2 & 3
DEFROST DUCT INSTALLATION & KICK PANEL INSTALLATION
FIGURES 4, 5, 5a & 5b
FIREWALL COVER INSTALLATION
FIGURES 6 & 6a
AC BLOCK-OFF PLATE & HEATER/ BLOWER COVER INSTALLATION.
FIGURE 7
EVAPORATOR INSTALLATION
FIGURES 8 & 8a
EVAPORATOR INSTALLATION CONT., FIREWALL CAP INSTALLATION
FIGURE 9
OEM DRIVER/ PASSENGER LOUVER HOSE ADAPTER INSTALLATION, OEM CENTER
LOUVER HOSE ADAPTER INSTALLATION
FIGURES 11, 11a & 11b
DRAIN HOSE INSTALLATION LUBRICATING O-RINGS, A/C HOSE INSTALLATION, &
FIGURES 12 & 13
MODIFIED A/C HOSE KIT & HEATER HOSE & HEATER CONTROL VALVE INSTALLATION
FIGURE 14
AC & HEATER HOSE ROUTING
FIGURE 15
FINAL STEPS & GLOVE BOX INSTALLATION
FIGURES 16, 17 & 17a
CONTROL PANEL & DUCT HOSE ROUTING
FIGURE 18
EVAPORATOR HARDLINE INSTALLATION
FIGURE 19
WIRING DIAGRAM
GEN IV WIRING CONNECTION INSTRUCTIONS
OPERATION OF CONTROLS
TROUBLE SHOOTING INFORMATION
TROUBLE SHOOTING INFORMATION CONT.
EVAPORATOR KIT PACKING LIST
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 2 OF 25
2
1964 IMPALA
EVAPORATOR KIT PACKING LIST
No.
QTY.
1.
2.
1
1
PART No.
744005
784164
w/ AC
EVAPORATOR KIT
564064
DESCRIPTION
GEN IV 3 VENT EVAP. SUB CASE
1964 IMPALA w/ AC ACC. KIT
** BEFORE BEGINNING INSTALLATION OPEN ALL PACKAGES AND CHECK CONTENTS OF SHIPMENT.
PLEASE REPORT ANY SHORTAGES DIRECTLY TO VINTAGE AIR WITHIN 15 DAYS. AFTER 15 DAYS,
VINTAGE AIR WILL NOT BE RESPONSIBLE FOR MISSING OR DAMAGED ITEMS.
1
GEN IV 3 VENT
EVAP. SUB CASE
744005
2
3
ACCESSORY KIT
784164
NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.
REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES.
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 3 OF 25
1964 IMPALA
w/ AC
1964 IMPALA w/ AC GEN IV
IMPORTANT NOTICE-PLEASE READ
FOR MAXIMUM SYSTEM PERFORMANCE VINTAGE AIR RECOMMENDS THE FOLLOWING:
THIS KIT DOES NOT CONTAIN HEATER HOSE. YOU MUST PURCHASE 8 FEET OF 5/8” DIA.
HEATER HOSE FROM VINTAGE AIR(31800-VUD) OR FROM YOU LOCAL PARTS RETAILER
SAFETY SWITCHES:
YOUR VINTAGE AIR SYSTEM IS EQUIPPED WITH A BINARY PRESSURE SAFETY SWITCH. A BINARY SWITCH
(11078-VUS) DISENGAGES THE COMPRESSOR CLUTCH IN CASE OF EXTREME LOW PRESSURE CONDITION
(REFRIGERANT LOSS) OR EXCESSIVELY HIGH HEAD PRESSURE (406 PSI), TO PREVENT COMPRESSOR DAMAGE
OR HOSE RUPTURE. A TRINARY SWITCH (11076-VUS) COMBINES HI/LO PRESSURE PROTECTION WITH AN
ELECTRIC FAN OPERATION SIGNAL AT 254 PSI., AND MAY BE SUBSTITUTED FOR USE WITH ELECTRIC
CONDENSER FANS. COMPRESSOR SAFETY SWITCHES ARE EXTREMELY IMPORTANT SINCE AN A/C SYSTEM
RELIES ON REFRIGERANT TO CARRY LUBRICATION THROUGH THE SYSTEM.
SERVICE INFO:
ATTENTION: SYSTEM COMPONENTS: THE COMPRESSOR, EVAPORATOR, CONDENSER & DRIER ARE CAPPED.
CAPS MAY BE UNDER PRESSURE WITH DRY NITROGEN; BE CAREFUL REMOVING CAPS. DO NOT REMOVE CAPS
PRIOR TO INSTALLATION. REMOVING CAPS PRIOR TO INSTALLATION WILL CAUSE COMPONENTS TO COLLECT
MOISTURE AND LEAD TO PREMATURE FAILURE AND REDUCED PERFORMANCE.
EVACUATE THE SYSTEM FOR 35-45 MINUTES WITH SYSTEM COMPONENTS (DRIER, COMPRESSOR, EVAPORATOR
AND CONDENSER) AT A TEMPERATURE OF AT LEAST 85° F. ON A COOL DAY THE COMPONENTS CAN BE HEATED
WITH A HEAT GUN OR BY RUNNING THE ENGINE WITH THE HEATER ON BEFORE EVACUATING. LEAK CHECK
AND CHARGE TO SPECIFICATIONS.
VINTAGE AIR SYSTEMS ARE DESIGNED TO OPERATE WITH R134a or R-12
REFRIGERANT ONLY ! USE OF ANY OTHER REFRIGERANTS RISKS A DANGER OF FIRE
AND COULD DAMAGE EITHER YOUR AIR CONDITIONING SYSTEM OR YOUR VEHICLE.
USE OF ANY OTHER REFRIGERANTS WILL VOID ALL WARRANTIES OF
THE AIR CONDITIONING SYSTEM AND COMPONE NTS. USE OF THE PROPER
TYPE AND AMOUNT OF REFRIGERANT IS CRITICAL TO PROPER SYSTEM
OPERATION. VINTAGE AIR RECOMMENDS OUR SYSTEMS BE CHARGED BY
WEIGHT WITH A QUALITY CHARGING STATION OR SCALE.
REFRIGERANT CAPACITIES FOR VINTAGE AIR SYSTEMS
(FOR OTHER SYSTEMS, CONSULT MANUFACTURER GUIDELINES)
R-12 SYSTEM
134a SYSTEM
CHARGE WITH 1.8 lbs.
(1lbs. 12ozs) OF REFRIGERANT
CHARGE WITH 2.0 lbs. OF REFRIGERANT
LUBRICANT CAPACITIES: NEW COMPRESSOR - NO ADDITIONAL OIL NEEDED
USED COMPRESSOR - CONSULT VINTAGE AIR
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 4 OF 25
4
1964 IMPALA
w/ AC
IMPORTANT WIRING NOTICE-PLEASE READ
SOME VEHICLES MAY HAVE HAD SOME OR ALL OF THEIR RADIO INTERFERENCE CAPACITORS
REMOVED. THERE SHOULD BE A CAPACITOR FOUND AT EACH OF THE FOLLOWING LOCATIONS:
1. ON THE POSITIVE TERMINAL OF THE IGNITION COIL
2. IF THERE IS A GENERATOR, ON THE ARMATURE TERMINAL OF THE GENERATOR
3. IF THERE IS A GENERATOR, ON THE BATTERY TERMINAL OF THE VOLTAGE REGULATOR
MOST ALTERNATORS HAVE A CAPACITOR INSTALLED INTERNALLY TO ELIMINATE WHAT IS CALLED
'WHINING' AS THE ENGINE IS REVVED. IF WHINING IS HEARD IN THE RADIO, OR JUST TO BE EXTRA
CAUTIOUS, A RADIO INTERFERENCE CAPACITOR CAN BE ADDED TO THE BATTERY TERMINAL OF
THE ALTERNATOR.
IT IS ALSO IMPORTANT THAT THE BATTERY LEAD IS IN GOOD SHAPE AND THAT THE GROUND
LEADS ARE NOT COMPROMISED. THERE SHOULD BE A HEAVY GROUND FROM THE BATTERY TO
THE ENGINE BLOCK, AND ADDITIONAL GROUNDS TO THE BODY AND TO THE CHASSIS.
IF THESE PRECAUTIONS ARE NOT OBSERVED, IT IS POSSIBLE FOR VOLTAGE SPIKES TO BE PRESENT
ON THE BATTERY LEADS. THESE SPIKES COME FROM IGNITION SYSTEMS, CHARGING SYSTEMS,
AND FROM TURNING SOME OF THE VEHICLE'S OTHER SYSTEMS ON AND OFF. MODERN
COMPUTER OPERATED EQUIPMENT CAN BE SENSITIVE TO VOLTAGE SPIKES ON THEIR POWER
LEADS, WHICH CAN CAUSE UNEXPECTED RESETS, STRANGE BEHAVIOR, AND MAY ALSO CAUSE
PERMANENT DAMAGE.
VINTAGE AIR STRIVES TO HARDEN THEIR PRODUCTS AGAINST THESE TYPES OF ELECTRICAL NOISE,
BUT THERE IS A POINT WHERE A VEHICLE'S ELECTRICAL SYSTEM CAN BE DEGRADED SO MUCH
THAT NOTHING CAN HELP.
RADIO INTERFERENCE CAPACITORS SHOULD BE AVAILABLE AT MOST AUTO & TRUCK PARTS
SUPPLIERS. THEY TYPICALLY ARE CYLINDRICAL IN SHAPE, A LITTLE OVER AN INCH LONG, A LITTLE
OVER A HALF INCH IN DIAMETER, THEY HAVE A SINGLE LEAD COMING FROM ONE END OF THE
CYLINDER WITH A TERMINAL ON THE END OF THE WIRE, AND THEY WILL HAVE A MOUNTING CLIP
WHICH IS SCREWED INTO A GOOD GROUND ON THE VEHICLE. THE SPECIFIC VALUE OF THE
CAPACITANCE IS NOT TOO SIGNIFICANT, IN COMPARISON TO IGNITION CAPACITORS THAT ARE
MATCHED WITH THE COIL TO REDUCE PITTING OF THE POINTS.
CARE MUST BE TAKEN WHEN INSTALLING THE COMPRESSOR LEAD, NOT TO SHORT
IT TO GROUND. THE COMPRESSOR LEAD MUST NOT BE CONNECTED TO A CONDENSER
FAN OR ANY OTHER AUXILIARY DEVICE. SHORTING TO GROUND OR CONNECTING
TO A CONDENSER FAN OR ANY OTHER AUXILIARY DEVICE WILL CAUSE SEVERE DAMAGE
TO THE ECU.
WHEN INSTALLING GROUND LEADS ON GEN IV SYSTEMS, THE BLOWER CONTROL GROUND
AND ECU GROUND MUST BE CONNECTED DIRECTLY TO THE NEGATIVE BATTERY POST.
THE HEATER CONTROL VALVE IS A NORMALLY OPEN VALVE. IT MUST BE CONNECTED TO
THE ECU TO BLOCK WATER FLOW IN AC MODE.
5
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 5 OF 25
1964 IMPALA
w/ AC
INSTALLATION INSTRUCTIONS FOR
1964 IMPALA w/ AC
BEFORE STARTING THE AIR CONDITIONER INSTALLATION, CHECK FOR PROPER OPERATION OF ALL COMPONENTS (RADIO,
LIGHTS, WIPERS, ETC.). STUDY THE INSTRUCTIONS, ILLUSTRATIONS AND DIAGRAMS. FOR EASE OF INSTALLATION
CHECK OFF ( ) EACH PROCEDURE PRIOR TO MOVING ON TO THE NEXT STEP.
ENGINE COMPARTMENT
DISCONNECT BATTERY AND REMOVE
DRAIN RADIATOR
EVACUATE THE A/C SYSTEM IF NECESSARY
REMOVE O.E.M. CONDENSER AND DRIER (DISCARD) SEE FIGURE 1
REMOVE O.E.M. A/C LINES FROM COMPRESSOR TO EVAPORATOR (DISCARD) SEE FIGURE 1
REMOVE O.E.M. A/C COMPRESSOR AND COMPRESSOR BRACKET (DISCARD) SEE FIGURE 1
REMOVE O.E.M. BLOWER ASSEMBLY (DISCARD) SEE FIGURE 1
TO REMOVE O.E.M EVAPORATOR ASM. THE FACTORY MANUAL
INDICATES DOING THE FOLLOWING, REMOVE RIGHT INNER FENDER .
RIGHT INNER
FENDER
O.E.M.
HEATER/BLOWER
ASSEMBLY
O.E.M.
EVAPORATOR
ASM.
O.E.M.
A/C LINE
O.E.M.
COMPRESSOR
O.E.M.
DRIER
FENDER
FIGURE 1
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 6 OF 25
6
1964 IMPALA
w/ AC
CONDENSER ASSEMBLY & INSTALLATION
REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH THE CONDENSER KIT TO INSTALL THE
CONDENSER.
BINARY SWITCH INSTALLATION (REFER TO CONDENSER INSTRUCTIONS)
COMPRESSOR & BRACKETS
REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH THE BRACKET KIT TO INSTALL THE
COMPRESSOR BRACKET.
PULLEYS
IN MOST INSTANCES THE BELT LENGTHS WILL REMAIN THE SAME.
PASSENGER COMPARTMENT
REMOVE INSTRUMENT PANEL, SEE FIGURE 2 BELOW.
REMOVE PASSENGER SIDE O.E.M A/C DUCT ASM, SEE FIGURE 2 BELOW
REMOVE DRIVER SIDE O.E.M A/C DUCT ASM. SEE FIGURE 2.
REMOVE O.E.M CENTER LOUVER ASM, SEE FIGURE 2.
REMOVE THE OEM CONTROL PANEL ASM. SEE FIGURE 2 BELOW
REMOVE O.E.M HEATER/ AC PLENUM ASM SEE FIGURE 2 BELOW
REMOVE GLOVE BOX (DISCARD)
REMOVE RADIO,SPEAKER (RETAIN)
REMOVE O.E.M DEFROST DUCT ASSEMBLY, SEE FIGURE 3 BELOW.
(REMOVE SPOT WELDS ON DEF DUCT BY CHISEL OR DIE GRINDER.
SEE FIGURE 3 BELOW.)
SPEAKER
O.E.M.
DEFROST
DUCT
PS O.E.M.
AC DUCT
ASM
INSTRUMENT
PANEL
O.E.M.
PS LOUVER
DS
O.E.M
AC DUCT
ASM
O.E.M.
DS
LOUVER
O.E.M.
CONTROL PANEL
O.E.M.
CENTER LOUVER
ASM
O.E.M
HEATER/ AC
PLENUM ASM
FIGURE 2
DASH
SUPPORT
INNER
COWL
7
USE A CHISEL OR
DIE GRINDER TO
BREAK SPOT-WELDS
DEFROST
DUCT
FIGURE 3
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 7 OF 25
1964 IMPALA
w/ AC
DEFROST DUCT INSTALLATION
PLACE DEFROST DUCT UNDER DASH, ALIGN WITH O.E.M. DEFROST OPENING IN DASH. DRILL
(2) 1/8 HOLES IN COWL USING DEFROST DUCT HOLE AS TEMPLATE. SECURE USING (2) #10 x 1/2 SHEET
METAL SCREWS AS SHOWN BELOW IN FIGURE 4.
(2) #10 X 1/2”
SHEET METAL
SCREWS
FIGURE 4
KICK PANEL FRESH AIR CAP INSTALLATION
REMOVE THE PASSENGER SIDE KICK PANEL BY
REMOVING THE (2) OEM SCREWS.
APPLY 1/4 BEAD OF SILICONE AROUND THE BACK
SIDE OF THE KICK PANEL FRESH AIR CAP AS
SHOWN IN FIGURE 5a.
INSTALL KICK PANEL FRESH AIR CAP IN KICK PANEL
USING THE (8) #8 x 1/2 PAN HEAD SCREWS AS
SHOWN IN FIGURE 5b.
RE-INSTALL KICK PANEL USING OEM SCREWS
(2) OEM
SCREWS
SILICONE
FIGURE 5a
PASSENGER SIDE
KICK PANEL
(8) #8 x 1/2”
PAN HEAD SCREWS
18235-VUB
FIGURE 5
KICK PANEL
FRESH AIR CAP
605163
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 8 OF 25
FIGURE 5b
8
1964 IMPALA
w/ AC
FIREWALL COVER INSTALLATION
INSTALL GROMMET ON FIREWALL COVER AS SHOWN IN FIGURE 6.
APPLY A 1/4” BEAD OF SILICONE AROUND THE FIREWALL COVER AS SHOWN IN FIGURE 6a.
FROM INSIDE THE CAR, INSTALL FIREWALL COVER ON FIREWALL SEE FIGURE 6. FROM THE ENGINE
COMPARTMENT SECURE FIREWALL COVER TO FIREWALL USING (4) 1/4-20 x 1” HEX BOLTS WITH
WASHERS AND 1/4-20 COARSE NUT w/ STARWASHER. SEE FIGURE 6.
(4) 1/4-20 x 1”
HEX BOLTS
w/ FLAT WASHERS
SILICONE
VIEW SHOWN FROM
INSIDE CAR.
FIGURE 6a
ENGINE SIDE
OF FIREWALL
COVER
33144-VUI
GROMMET
7/8 OD x 3/8 ID
(4) 1/4-20 COARSE
NUT w/ STARWASHER
FIGURE 6
9
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 9 OF 25
1964 IMPALA
w/ AC
AC BLOCK OFF PLATE & HEATER/ BLOWER COVER INSTALLATION
APPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE AC BLOCK-OFF PLATE AS SHOWN IN
FIGURE 7 BELOW.
INSTALL THE AC BLOCK-OFF PLATE USING (9) #14 x 3/4” SHEET METAL SCREWS AS SHOWN IN FIGURE 7,
BELOW.
DRILL (2) 3/16” HOLES IN FIREWALL USING THE AC BLOCK-OFF PLATE AS A TEMPLATE. SEE FIGURE 7 BELOW.
APPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE HEATER/ BLOWER COVER AS SHOWN
IN FIGURE 7 BELOW.
INSTALL THE HEATER/ BLOWER COVER USING (5) #14 x 3/4” SHEET METAL SCREWS AND A 1/4-20 x 1”
BOLT w/ FLAT WASHER AND NUT w/ STAR WASHER AS SHOWN IN FIGURE 7 BELOW.
DRILL (1) 9/32” HOLE IN FIREWALL USING THE HEATER/ BLOWER COVER AS TEMPLATE. SEE FIGURE 7, BELOW
DRILL
9/32” HOLE
HEATER/ BLOWER
COVER
643162
(5) #14 x 3/4”
SHEETMETAL SCREWS
18266-VUB
1/4-20 x 1”
HEX BOLT
w/ FLAT WASHER
&
NUT w/ STAR WASHER
FIGURE 7
AC BLOCK
OFF PLATE
627064
(9) #14 x 3/4”
SHEETMETAL SCREWS
18266-VUB
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 10 OF 25
10
1964 IMPALA
w/ AC
EVAPORATOR INSTALLATION
ON A WORK BENCH INSTALL (2) HEATER LINE WITH PROPERLY LUBRICATED O-RINGS. (SEE FIGURE 13 PAGE 14, AND
FIGURE 19 PAGE 19.)
INSTALL (3) 1/4-20 x 1” HEX BOLT AND 1/4” PUSH-ON NUT ON EVAP REAR BRKT AS SHOWN IN FIGURE 8a BELOW.
INSTALL EVAPORATOR FRONT & REAR MOUNTING BRACKETS ON EVAPORATOR USING (6)1/4-20 x 1/2” HEX BOLTS
AND TIGHTEN AS SHOWN IN FIGURE 8 & 8a BELOW.
INSTALL (2) A/C HARDLINES WITH PROPERLY LUBRICATED O-RINGS. (SEE FIGURE 13 PAGE 14, AND FIGURE 19 PAGE 19.)
EVAP FRONT
BRKT
643163
(3) 18290-VUB
1/4-20 x 1”
HEX BOLT
(2) 18287-VUB
1/4-20 x ½”
HEX BOLT
(3) 189125-MUR
1/4 PUSH NUT
BOLT FASTENER
FIGURE 8
18287-VUB
(2) 1/4-20 x ½”
HEX BOLT
EVAP REAR
BRKT
643164
FIGURE 8a
11
18287-VUB
(2) 1/4-20 x ½”
HEX BOLT
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 10 OF 25
1964 IMPALA
w/ AC
EVAPORATOR INSTALLATION CONT.
LIFT EVAPORATOR UNIT UP UNDER THE DASHBOARD SEE FIGURE 9. SECURE LOOSELY TO THE FIREWALL FROM
THE ENGINE COMPARTMENT SIDE USING (3) 1/4-20 NUTS w/ STAR WASHER AND FLAT WASHER, SEE FIGURE 9.
USING OEM SECURE THE FRONT EVAPORATOR MOUNTING BRACKET TO OEM SPEAKER MOUNTING BRKT.
SEE FIGURE 9 AND 9a.
VERIFY THAT EVAPORATOR UNIT IS LEVEL AND SQUARE TO THE DASH, THEN TIGHTEN ALL MOUNTING BOLTS.
(NOTE: TIGHTEN THE BOLT ON FIREWALL FIRST, THEN THE FRONT MOUNTING BRACKET SCREWS.)
OEM
FASTNER
EVAPORATOR
BRACKET
MOUNTING
HOLES
SPEAKER
BRKT
OEM
SCREW
EVAP FRONT
BRKT
FIGURE 9a
FIGURE 9
FIREWALL CAP INSTALLATION
INSTALL GROMMETS ON FIREWALL CAP
AS SHOWN IN FIGURE 10 BELOW.
643167
FIREWALL
CAP
APPLY A 1/4” BEAD OF SILICONE AROUND
THE BACK SIDE OF THE FIREWALL CAP AS
SHOWN IN FIGURE 10a.
PASS LINES THROUGH FIREWALL CAP,
AND SECURE WITH (3) #10 x 1/2
SHEET METAL SCREWS. SEE FIGURE
10.
SILICONE
FIGURE 10a
33135-VUI
33137-VUI
FIGURE 10
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 11 OF 25
(3) 18247-VUB
#10 x 1/2
SHEET METAL
SCREWS
12
1964 IMPALA
w/ AC
OEM DRIVER/ PASSENGER LOUVER HOSE ADAPTER INSTALLATION
INSTALL S-CLIPS ON DRIVER/ PASSENGER SIDE HOSE ADAPTERS AS SHOWN IN FIGURE 11 BELOW.
VINTAGE AIR RECOMMENDS REMOVING LOUVER DOOR. SEE FIGURE 11a
INSTALL DRIVER & PASSENGER SIDE HOSE ADAPTERS ON OEM LOUVERS. SEE FIGURE 11a BELOW.
INSTALL
(3) S-CLIPS
65980-VUE
OEM
LOUVER
LOUVER
DOOR
HOSE
ADAPTER
49870-VCI
FIGURE 11
OEM
LOUVER
DASH
FIGURE 11a
OEM CENTER LOUVER HOSE ADAPTER INSTALLATION
INSTALL CENTER LOUVER HOSE ADAPTER ON OEM CENTER LOUVER AND SECURE USING OEM
SCREWS AS SHOWN IN FIGURE 11b.
OEM
CENTER LOUVER
HOSE ADAPTER
605165
OEM
CENTER
LOUVER
(2) OEM
SCREWS
13
DASH
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 13 OF 25
FIGURE 11b
DASH
1964 IMPALA
w/ AC
DRAIN HOSE INSTALLATION
LOCATE EVAPORATOR DRAIN ON BOTTOM OF EVAPORATOR CASE.
IN-LINE WITH DRAIN, LIGHTLY MAKE A MARK
ON THE FIREWALL MEASURE 1” DOWN AND
2 1/2” TO THE LEFT AND DRILL A 5/8” HOLE
THROUGH THE FIREWALL. SEE FIGURE 12 BELOW.
INSTALL DRAIN HOSE TO BOTTOM OF
2 1/2” 1”
EVAPORATOR UNIT AND ROUTE THROUGH
FIREWALL. SEE FIGURE 12.
DRAIN
HOSE
FIGURE 12
2 1/2”
EVAPORATOR
CASE
1”
LUBRICATING O-RINGS
O-RING
MALE
INSERT
FEMALE
NUT
FOR A PROPER SEAL OF FITTINGS:
INSTALL SUPPLIED O-RINGS AS SHOWN
AND LUBRICATE WITH SUPPLIED OIL.
O-RING
#6 O-RING
SUPPLIED OIL
FOR O-RINGS
#8 O-RING
O-RING,INSTALES
OVER MALE INSERT
TO SWAGED LIP
TWIST WITH
THIS WRENCH
#10 O-RING
FIGURE 13
HOLD WITH
THIS WRENCH
A/C HOSE INSTALLATION
STANDARD HOSE KIT
LOCATE THE #8 COMPRESSOR A/C HOSE. LUBRICATE (2) #8 O-RINGS (SEE FIGURE 13, ABOVE) AND CONNECT
THE 135° FEMALE FITTING w/ 134a SERVICE PORT TO THE #8 DISCHARGE PORT ON THE COMPRESSOR.
ROUTE THE STRAIGHT FEMALE FITTING TO THE #8 CONDENSER HARDLINE COMING THROUGH CORE SUPPORT.
SEE FIGURE 15, PAGE 16. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN FIGURE 13 ABOVE.
LOCATE THE #10 COMPRESSOR A/C HOSE. LUBRICATE (2) #10 O-RINGS (SEE FIGURE 13, ABOVE) AND
CONNECT THE #10 135° FEMALE FITTING w/134a SERVICE PORT TO THE #10 SUCTION PORT ON THE
COMPRESSOR. ROUTE THE 45° FEMALE FITTING TO THE #10 EVAPORATOR HARDLINE COMING THROUGH THE
FIREWALL SEE FIGURE 15, PAGE 16. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN 13 ABOVE.
(NOTE: WRAP THE #10 FITTING CONNECTIONS WITH PRESS TAPE. SEE FIGURE 14, PAGE 15.
LOCATE THE #6 EVAP/CORE HARDLINE AND LUBRICATE (2) #6 O-RINGS (SEE FIGURE 13 , ABOVE) AND
CONNECT THE HARDLINE TO THE #6 HARDLINE COMING THROUGH THE CORE SUPPORT FROM DRIER. ATTACH
THE OTHER END OF THE HARDLINE WITH LUBRICATED O-RING TO THE #6 EVAPORATOR HARDLINE COMING
THROUGH THE FIREWALL. SEE FIGURE 15, PAGE 16. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN
FIGURE 13, ABOVE.
USE A #2 & #10 ADEL CLAMP TO SECURE THE #6 EVAP/ CORE HARDLINE AND THE 5/8” HEATER HOSE TO THE
INNER FENDERWELL AS SHOWN IN FIGURE 15, PAGE 16. SECURE THE ADEL CLAMP TO THE INNER FENDER
USING (2)10-32 x ½” PH PAN HEAD SCREWS w/ NUTS.
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 14 OF 25
14
1964 IMPALA
w/ AC
MODIFIED A/C HOSE KIT
REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH MODIFIED HOSE KIT.
HEATER HOSE & HEATER CONTROL VALVE INSTALLATION
NOTE: VINTAGE AIR SYSTEMS REQUIRE (2) 5/8 HOSE NIPPLES (NOT SUPPLIED). ONE FOR THE INTAKE (PRESSURE) AND
ONE FOR THE WATER PUMP (SUCTION) - IF REQUIRED REMOVE EXISTING HOSE NIPPLE OR NIPPLES AND INSTALL
NEW 5/8 HOSE NIPPLES IN INTAKE AND WATER PUMP.
ROUTE A PIECE OF HEATER HOSE FROM THE WATER PUMP TO THE HEATER LINE COMING THROUGH THE FIREWALL
AS SHOWN IN FIGURE 14, BELOW. SECURE USING HOSE CLAMPS.
ROUTE A PIECE OF HEATER HOSE FROM THE INTAKE TO THE HEATER LINE COMING THROUGH THE FIREWALL
AS SHOWN IN FIGURE 14, BELOW. NOTE: INSTALL HEATER CONTROL VALVE IN-LINE
WITH INTAKE MANIFOLD (PRESSURE SIDE) HEATER HOSE, SECURE USING HOSE CLAMPS AS SHOWN IN FIGURE 14,
BELOW. NOTE PROPER FLOW DIRECTION.
NOTE: HEATER CONTROL VALVE WILL GET HOT TO THE TOUCH WHEN ENERGIZED
ECU
MODULE
PRESS
TAPE
FLOW
HEATER
HOSE
FROM HTR
CNTRL VLV
#10 SUCTION
LINE (INSULATED)
091671
EXPANSION
VALVE
TO
WATER PUMP
O-RING
#10 SUCTION
HOSE
096059
PRESS TAPE
15
#6 LIQUID
LINE
091061
FIGURE 14
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 15 OF 25
FROM
INTAKE
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 16 OF 25
16
O RING
ECU
MODULE
#10 ADEL
CLAMP
31601-VUD
HEATER
HOSE
#2 ADEL
CLAMP
31600-VUD
#6
HARDLINE
INNER
FENDER
INNER
FENDER
FIGURE 15
#6 DRIER/CORE
HARDLINE
091057
#8
CONDENSER
HARDLINE
091064
#6 HARDLINE
DRIER/ CONDENSER
35056-LCG
#8 A/C
DISCHARGE HOSE
(COMP-COND HARDLINE)
096062
NOTE: VINTAGE AIR SYSTEMS REQUIRE (2) 5/8
HOSE NIPPLES, ONE LOCATED IN INTAKE AND
ONE LOCATED IN WATER PUMP (NOT SUPPLIED)
#10 A/C
SUCTION HOSE
(COMP-EVAP)
096059
10-32 x ½”
PH PAN HEAD
SCREW w/ NUT
HEATER
#6 EVAP/CORE
CONTROL
HARDLINE
10-32 x ½”
VALVE
091061
PH PAN HEAD
46115-VUH
SCREW w/ NUT
FIREWALL
COVER
643155
EXPANSION
VALVE
#10 SUCTION
LINE (INSULATED)
091671
PRESS
TAPE
HEATER/BLOWER
COVER
643162
EVAPORATOR
SUB CASE
AC & HEATER HOSE ROUTING
w/ AC
COMPRESSOR
SAFETY SWITCH
(BINARY TYPE
SCREW ON DRIER)
(REFER TO
CONDENSER INST.)
1964 IMPALA
1964 IMPALA
w/ AC
FINAL STEPS
INSTALL DUCT HOSES AS SHOWN IN FIGURE 18, PAGE 18.
ROUTE A/C WIRES THROUGH 5/8 GROMMET AS SHOWN ON FIGURE 16 ( 12 VOLT/ GROUND/ BINARY SWITCH/ HEATER VALVE)
INSTALL CONTROL PANEL ASM.
PLUG THE CONTROL PANEL HARNESS INTO THE ECU MODULE ON SUB CASE AS SHOWN IN PAGE 18.
PLUG THE WIRING HARNESS INTO THE ECU MODULE ON SUB CASE AS SHOWN IN FIGURE 18, PAGE 18. (WIRE ACCORDING TO
WIRING DIAGRAM ON PAGE 20 & 21.)
NOTE: CONTROL PANEL MUST BE CALIBRATED. (REFER TO CONTROL PANEL INSTRUCTIONS FOR CALIBRATION PROCEDURES.
GLOVE BOX INSTALLATION ( SEE FIGURE 17)
REINSTALL ALL PREVIOUSLY REMOVED ITEMS (BATTERY RADIO, SPEAKER, INSTRUMENT PANEL).
FILL RADIATOR WITH AT LEAST A 50/50 MIXTURE OF APPROVED ANTIFREEZE AND DISTILLED WATER.
IT IS THE OWNERS RESPONSIBILITY TO KEEP THE FREEZE PROTECTION AT THE PROPER LEVEL FOR THE CLIMATE IN WHICH THE
VEHICLE IS OPERATED. FAILURE TO FOLLOW ANTIFREEZE RECOMMENDATIONS WILL CAUSE HEATER CORE TO CORRODE
PREMATURELY AND POSSIBLY BURST IN AC MODE AND/OR FREEZING WEATHER, VOIDING YOUR WARRANTY.
DOUBLE CHECK ALL FITTINGS, BRACKETS AND BELTS FOR TIGHTNESS.
VINTAGE AIR RECOMMENDS THAT ALL AC SYSTEMS BE SERVICED BY A CERTIFIED AUTOMOTIVE AIR CONDITIONING
TECHNICIAN.
EVACUATE THE SYSTEM FOR A MINIMUM OF 45 MINUTES PRIOR TO CHARGING AND LEAK CHECK PRIOR TO SERVICING.
CHARGE THE SYSTEM TO THE CAPACITIES STATED ON THE INFORMATION PAGE (PAGE 4) OF THIS INSTRUCTION MANUEL.
FIREWALL
COVER
FIREWALL
CAP
GROMMET
FIGURE 16
GLOVE BOX INSTALLATION
THE NEW GLOVE BOX IS MADE IN TWO (2) PIECES FOR EASY INSTALLATION.
INSERT BOTTOM HALF OF NEW GLOVE BOX, INTO GLOVE BOX OPENING AND POISTION IN PLACE.
INSERT TOP HALF OF GLOVE BOX AND FASTEN TO BOTTOM HALF USING (4) #6 x 3/8"
BLACK PAN HEAD PHILLIPS SCREWS (SEE FIGURE 17, BELOW).
INSTALL GLOVE BOX DOOR USING (3) OEM SCREWS THROUGH THE TINNERMAN NUTS.
INSTALL GLOVE BOX USING (2) OEM SCREWS SEE FIGURE 17a.
TINNERMAN
NUTS
GLOVE BOX
TOP
OEM
624163
SCREWS
FIGURE 17
17
(4)#6 x 3/8
PH PAN HEAD
SCREWS
GLOVE BOX
BOTTOM
624164
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 17 OF 25
FIGURE 17a
OEM
SCREWS
1964 IMPALA
w/ AC
CONTROL PANEL & DUCT HOSE ROUTING
PLUG
FROM
CONTROL
WIRING
PASSENGER
SIDE LOUVER HARNESS
232006-VUR
2 ½” x 34”
DRIVER SIDE
DEF. DUCT
2” x 15”
DRIVER SIDE
LOUVER
2 1/2” x 30”
PLUG
FROM
WIRING
HARNESS
232001-VUR
PASS. SIDE
DEF. DUCT
2” x 15”
FIGURE 18
CENTER LOUVER
2 ½” x 20”
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 18 OF 25
DRIVER
SIDE
LOUVER
PASSENGER
SIDE
LOUVER
CENTER
LOUVER
18
19
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 19 OF 25
#10 O-RING
(33859-VUF)
HEATER LINE
(EVAP TO WATER PUMP)
091661
HEATER LINE
(EVAP TO INTAKE)
091661
#6
O-RING
(33857-VUF)
#10 SUCTION
LINE
(091671)
PRESS TAPE
ECU MODULE
EVAPORATOR HARD LINE INSTALLATION
#6 LIQUID LINE
091078
FIGURE 19
#10 O-RING
33859-VUF
1964 IMPALA
w/ AC
1964 IMPALA
w/ AC
WIRING DIAGRAM
RED
WHT
WHT/BLU
NA
VIEWED FROM BOARD TOP SIDE
RED
WHT
WHT/RED
JF8
COLD
HOT
RED
WHT
WHT/YEL
RED
WHT
WHT/GRN
VIEWED FROM
WIRE SIDE
JM3
OPTIONAL:
WIDE OPEN THROTTLE
SWITCH CONTACTS
CLOSE ONLY AT
FULL THROTTLE,
WHICH DISABLES
AC COMPRESSOR
DASH
FLR
DEF
RED
GRN
YEL
BLU
GRN
BLK
STEPPER
DASH/FLOOR
RED
GRN
YEL
BLU
GRN
BLK
JM4
FAN
RED
GRN
YEL
BLU
GRN
BLK
GRY
JM5
RED
PRGM
YEL/BLK
WHT
N/A TACH
DASH LAMP
(NOT USED)
LT BLU
GRN
GRY
TAN
VIO
ORA
STEPPER
DEFROST/PLENUM
STEPPER
TEMPERTURE BLEND
NOT USED
JM6
JM9
WIDE OPEN
THROTTLE
SWITCH
(OPTIONAL)
JF8
JM8
JM2
BLK
BLK
JM1
RUN
GENIV WIRING DIAGRAM
REVISION B, 2006-05-04
BAT
IGNITION
SWITCH
EVAPORATOR
TEMPERATURE
SENSOR
VIO
GEN-IV ECU
+ 12v
WHT
RED
RED
WHT
WHT
30
85
87
30
86
POS
NEG
RED
BSC
CIRCUIT
BREAKER
30 AMP
ORA
GRY
85
87
86
COMPRESSOR
RELAY
SHLD
RED
BLWR-NEG
PWM
RED
BLWR-POS
BAT-NEG
SHLD
RED
RED
RED
BAT-POS
BLOWER MOTOR
BLK
YEL
BLK
HEATER
CONTROL
VALVE
RELAY
GRN
DK BLU
DK BLU
WARNING: ALWAYS MOUNT CIRCUIT
BREAKER UNDER THE HOOD IN THE ENGINE
COMPARTMENT AND AS CLOSE TO
THE BATTERY AS POSSIBLE.
WHT
BINARY
OR TRINARY
SAFETY
SWITCH
HCV
DRIER
BATTERY
CMPR
NOTE:
= CHASSIS
GROUND
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 20 OF 25
20
21
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 21 OF 25
RED
E
WH
T
BLU
CIRCUIT BREAKER
30 AMP
(SUPPLIED
GROUND
WIRE, NOT
PART OF
HARNESS)
CONNECT
GRN
A/C
COMPRESSOR
RELAY
RED
WH
T
CONNECT
WARNING:
ALWAYS MOUNT CIRCUIT
BREAKER UNDER THE HOOD
IN THE ENGINE COMPARTMENT
AND AS CLOSE TO THE
BATTERY AS POSSIBLE.
RED
WH
T
HEATER
CONTROL
VALVE
HEATER
CONTROL
VALVE RELAY
NOTE:
MOUNT RELAYS
IN DESIRED
LOCATION
UNDER DASH
WHT
RED
CONNECT
RED
WH
T
CHASSIS
GROUND
WH
T
WH
T
+
CONNECT
BACK SIDE
OF EVAPORATOR
BATTERY
NOTE: CONNECT WHITE
WIRES DIRECTLY TO
( ) BATTERY TERMINAL
COMPRESSOR
K
BLAC
FRONT SIDE
OF EVAPORATOR
CONNECT
LE T
IGNITION
SWITCH
(IGNITION HOT
TERMINAL)
RUN
BAT
w/ AC
+12 V
NOTE:
YELLOW, ORANGE
& TAN COMING FROM
HARNESS ARE NOT USED.
GRAY WIRE IS USED
FOR PROGRAMING
CONTROLS IF APPLICABLE
CONNECT
VIO
CONTROL
WIRING
HARNESS
WIRING
HARNESS
CONNECT
REFER TO CONTROL
PANEL INSTRUCTIONS
AND PLUG IN ACCORDINGLY
NOTE: IF USING TRINARY
SAFETY SWITCH- REFER TO
WIRING SCHEMATIC SUPPLIED
WITH TRINAY SAFETY SWITCH
FOR PROPER WIRING INSTRUCTIONS
BINARY
SAFETY
SWITCH
BLUE
CONNECT
WHT
GEN IV WIRING
CONNECTION
INSTRUCTIONS
1964 IMPALA
1964 IMPALA
w/ AC
OPERATION OF CONTROLS
NOTE: CONTROLS MUST BE CALIBRATED PRIOR TO FIRST OPERATION- REFER TO CONTROL PANEL
INSTRUCTIONS
NOTE: WHEN BATTERY POWER IS FIRST CONNECTED TO THE ECU,
THE COMPUTER GOES THROUGH AN INITIALIZATION SEQUENCE.
THIS INITIALIZATION MAY TAKE UP TO 30 SECONDS. DURING
INITIALIZATION THE BLOWER WILL NOT OPERATE, BUT THE DOORS
INSIDE THE UNIT WILL BE OPERATING. A LOW BATTERY OR
DISCONNECTING THE BATTERY MAY ALSO TRIGGER A RE-INITIALIZATION.
DURING START UP, A LOW BATTERY MAY DROP BELOW 7 VOLTS,
TRIGGERING RE-INITIALIZATION.
NOTE:
ORIGINAL BLOWER
SWITCH WILL NOT
BE USED.
THERMOSTAT
LEVER
MODE
LEVER
BLOWER
SPEED
FAN
MODE
TEMP
BLOWER SPEED
THIS LEVER CONTROLS
THE BLOWER SPEED,
FROM OFF TO HI
BLOWER SPEED
SLIDE THE FAN LEVER
UP OR DOWN TO
SELECT DESIRE FAN
SPEED (SLIDE LEVER ALL
THE WAY DOWN
FOR MAXIMUM
FAN SPEED)
BLOWER SPEED
SLIDE THE FAN LEVER
UP OR DOWN
TO SELECT DESIRE
FAN SPEED
(SLIDE LEVER ALL THE WAY
DOWN FOR MAXIMUM
FAN SPEED)
MODE
FAN
TEMP
MODE
TEMP
MODE LEVER
SLIDE THE MODE LEVER ALL THE
WAY UP FOR DASH MODE
MODE LEVER
THIS LEVER CONTROLS
THE MODE POSITIONS
FROM DASH TO FLOOR
TO DEFROST
THERMOSTAT LEVER
THIS LEVER CONTROLS
THE TEMPERATURE
FROM HOT TO COLD
FAN
THERMOSTAT LEVER
IN A/C MODE SLIDE THE
TEMP LEVER ALL THE WAY
UP TO ENGAGE
COMPRESSOR FOR
MAXIMUM COOLING.
(SLIDE LEVER UP OR DOWN TO
ADJUST DESIRED TEMPERATURE)
SYSTEM OFF
FAN
MODE
TEMP
BLOWER SPEED
SLIDE THE FAN LEVER
UP OR DOWN TO
SELECT DESIRE FAN
SPEED (SLIDE LEVER ALL
THE WAY DOWN
FOR MAXIMUM
FAN SPEED)
MODE LEVER
SLIDE THE MODE LEVER
TO THE CENTER FOR
FLOOR MODE
(SLIDE LEVER UP OR DOWN
TO BLEND BETWEEN DESIRED
MODE POSITIONS)
MODE LEVER
SLIDE THE MODE LEVER
ALL THE WAY DOWN
FOR DEFROST MODE
(SLIDE LEVER UP OR DOWN
TO BLEND BETWEEN DESIRED
MODE POSITIONS)
THERMOSTAT LEVER
IN HEAT MODE SLIDE THE
TEMP LEVER ALL THE WAY
DOWN FOR MAXIMUM HEATING.
(SLIDE LEVER UP OR DOWN TO
ADJUST DESIRED TEMPERATURE)
THERMOSTAT LEVER
IN DEF MODE SLIDE THE
TEMP LEVER ALL THE WAY
UP TO ENGAGE COMPRESSOR
FOR MAXIMUM COOLING.
(SLIDE LEVER UP OR DOWN TO
ADJUST DESIRED TEMPERATURE)
HEAT MODE
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 22 OF 25
A/C MODE
FAN
MODE
TEMP
DEFROST MODE
22
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 23 OF 25
3. COMPRESSOR WILL NOT TURN
OFF (ALL OTHER FUNCTIONS
WORK)
2. COMPRESSOR WILL NOT TURN
ON (ALL OTHER FUNCTIONS
WORK)
BLOWER STAYS ON HIGH
SPEED WHEN IGNITION IS ON
OR OFF.
1. BLOWER STAYS ON HIGH
SPEED WHEN IGNITION IS ON
SYMPTOM
23
SYSTEM IS NOT CHARGED
ALL OTHER FUNCTIONS WORK
NO OTHER FUNCTIONS WORK
CONDITION
CHARGE SYSTEM OR BYPASS PRESSURE SWITCH .
CHECK CONTINUITY TO GROUND ON WHITE CONTROL
HEAD WIRE. CHECK FOR 5V ON RED CONTROL HEAD
WIRE.
CHECK TWO PIN CONNECTOR AT ECU
HOUSING.
CHECK FOR FAULTY A/C POT OR ASSOC. WIRING
CHECK FOR DISCONNECTED OR FAULTY
THERMISTOR.
REPAIR/REPLACE POT/CONTROL WIRING
REPLACE RELAY
CHECK FOR FAULTY A/C POT OR ASSOC. WIRING
CHECK FOR FAULTY A/C RELAY
(NOT APPLICABLE TO 3 POT CONTROLS)
SEE BLOWER SWITCH CHECK PROCEDURE
LOSS OF GROUND ON THIS WIRE WILL RENDER
CONTROL HEAD INOPERABLE
NOTES
w/ AC
RED WIRE @ A/C POT SHOULD HAVE APPROX. 5V
WITH IGNITION ON. WHITE WIRE WILL HAVE
CONTINUITY TO CHASSIS GROUND, WHITE/BLUE
WIRE SHOULD VARY BETWEEN 0V AND 5V WHEN
LEVER IS MOVED UP AND DOWN.
TO CHECK FOR PROPER POT FUNCTION, CHECK
VOLTAGE AT WHITE/BLUE WIRE. VOLTAGE
SHOULD BE BETWEEN 0 AND 5V, AND WILL VARY
WITH POT LEVER POSITION.
DISCONNECTED OR FAULTY THERMISTOR WILL
CAUSE COMPRESSOR TO BE DISABLED.
DANGER- NEVER BYPASS SAFETY SWITCH WITH
ENGINE RUNNING, SERIOUS INJURY CAN RESULT
REPLACE BSC. (THIS WILL REQUIRE EVAPORATOR TO BE NO OTHER PART REPLACEMENTS SHOULD BE
REMOVED FROM VEHICLE. )
NECESSARY.
CHECK TO INSURE THAT NO BSC WIRING IS DAMAGED OR
SHORTED TO VEHICLE GROUND. THE BSC OPERATES
THE BLOWER BY GROUND SIDE PWM SWITCHING. THE
POSITIVE WIRE TO THE BLOWER WILL ALWAYS BE HOT.
IF THE "GROUND" SIDE OF THE BLOWER IS SHORTED TO
CHASSIS GROUND, THE BLOWER WILL RUN ON HI.
BE SURE SMALL, 20GA. WHITE GROUND WIRE IS
CONNECTED TO THE BATTERY GROUND POST. IF IT IS,
REPLACE ECU.
VERIFY ALL PINS ARE INSERTED INTO PLUG. INSURE NO
PINS ARE BENT OR DAMAGED IN ECU.
VERIFY CONTINUITY TO CHASSIS GROUND WITH WHITE
CONTROL HEAD WIRE AT VARIOUS POINTS.
ACTIONS
SYSTEM MUST BE CHARGED FOR COMP. TO
ENGAGE.
UN-PLUG 3 WIRE BSC CONTROL CONNECTOR
FROM ECU. IF BLOWER STAYS RUNNING, THE BSC
IS EITHER IMPROPERLY WIRED, OR DAMAGED.
CHECK FOR DAMAGED PINS OR WIRES IN CONTROL
HEAD PLUG.
CHECK FOR DAMAGED GROUND WIRE (WHITE) IN
CONTROL HEAD HARNESS.
CHECK FOR DAMAGED BLOWER SWITCH OR POT
AND ASSOCIATED WIRING.
UN-PLUG 3 WIRE BSC CONTROL CONNECTOR
FROM ECU. IF BLOWER SHUTS OFF, ECU IS EITHER
IMPROPERLY WIRED, OR DAMAGED.
CHECKS
TROUBLE SHOOTING INFORMATION
1964 IMPALA
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 24 OF 25
VERIFY CONNECTIONS ON POWER LEAD, IGNITION
LEAD, AND BOTH WHITE GROUND WIRES.
WILL NOT TURN ON UNDER ANY
CONDITIONS
CHECK FOR DAMAGED STEPPER MOTOR OR
WIRING
RUN RED POWER WIRE DIRECTLY TO BATTERY.
THIS IS AN INDICATOR THAT THE SYSTEM HAS
BEEN RE-SET. BE SURE THE RED POWER WIRE IS
ON THE BATTERY POST AND NOT ON A SWITCHED
SOURCE. ALSO, IF THE SYSTEM IS PULLED BELOW
7V EVEN FOR A SPLIT SECOND, THE SYSTEM WILL
RE-SET.
8. WHEN THE IGNITION IS TURNED
ON, THE BLOWER MOMENTARILY
COMES ON, THEN SHUTS OFF.
THIS IS WITH THE BLOWER
SWITCH IN THE OFF POSITION.
REPAIR OR REPLACE
INSURE ALL SYSTEM GROUNDS AND POWER
CONNECTIONS ARE CLEAN AND TIGHT.
CHARGE BATTERY
CHECK FOR POSITIVE POWER AT HEATER VALVE GREEN
WIRE. AND BLOWER RED WIRE. CHECK FOR GROUND
ON CONTROL HEAD WHITE WIRE.
VERIFY PROPER METER FUNCTION BY CHECKING A
KNOWN GOOD BATTERY'S VOLTAGE.
INSTALL CAPACITORS ON IGN. COIL, AND ALTERNATOR.
ENSURE GOOD GROUND AT ALL POINTS.RE-LOCATE COIL
AND ASSOCIATED WIRING AWAY FROM ECU AND ECU
WIRING. CHECK FOR BURNED OR LOOSE PLUG WIRES.
CHECK FOR DAMAGED SWITCH OR POT AND
ASSOCIATED WIRING
BATTERY VOLTAGE IS AT LEAST CHECK FOR AT LEAST 12V BETWEEN GREEN
12V
HEATER VALVE WIRE AND CHASSIS GROUND.
CHECK FOR FAULTY BATTERY OR ALTERNATOR
BATTERY VOLTAGE IS LESS
THAN 12V
PARTIAL FUNCTION OF MODE
DOORS
CHECK FOR DAMAGED MODE SWITCH OR POT AND
ASSOCIATED WIRING
CHECK FOR OBSTRUCTED OR BINDING MODE
DOORS
VERIFY BATTERY VOLTAGE IS GREATER THAN 10
VOLTS AND LESS THAN 16.
NOISE INTERFERENCE FROM EITHER IGNITION OR
ALTERNATOR.
WORKS WHEN ENGINE IS NOT
RUNNING, SHUTS OFF WHEN
ENGINE IS STARTED.
(TYPICALLY EARLY GEN 4, BUT
POSSIBLE ON ALL VERSIONS)
NO MODE CHANGE AT ALL
1964 IMPALA
w/ AC
SYSTEM SHUTS OFF BLOWER AT 10V. POOR
CONNECTIONS OR WEAK BATTERY CAN CAUSE
SHUT DOWN AT UP TO 11V
TYPICALLY CAUSED BY EVAPORATOR HOUSING
INSTALLED IN A BIND IN THE VEHICLE. BE SURE
ALL MOUNTING LOCATIONS LINE UP AND DON'T
HAVE TO BE FORCED INTO POSITION.
IGNITION NOISE (RADIATED OR CONDUCTED) WILL
CAUSE THE SYSTEM TO SHUT DOWN DUE TO
HIGH VOLTAGE SPIKES. IF THIS IS SUSPECTED,
CHECK WITH A QUALITY OSCILISCOPE. SPIKES
GREATER THAN 16V WILL SHUT DOWN ECU.
INSTALL A RADIO CAPACITOR AT THE POSITIVE
POST OF THE IGNITION COIL (SEE RADIO
CAPACITOR INSTALLATION BULLETEN). A FAULTY
ALTERNATOR OR WORN OUT BATTERY CAN ALSO
RESULT IN THIS CONDITION. BATTERY MUST BE
IN GOOD CONDITION FOR ALTERNATOR
REGULATOR TO FUNCTION PROPERLY.
TROUBLE SHOOTING INFORMATION CONT.
7. ERATIC FUNCTIONS OF
BLOWER, MODE, TEMP, ETC.
6. BLOWER TURNS ON AND OFF
RAPIDLY
5. LOSS OF MODE DOOR
FUNCTION
4. SYSTEM WILL NOT TURN ON OR
RUNS INTERMITTENTLY
24
1964 IMPALA
EVAPORATOR KIT
564064
EVAPORATOR KIT PACKING LIST
No.
QTY.
1.
2.
1
1
PART No.
744005
784164
DESCRIPTION
GEN IV 3 VENT EVAP. SUB CASE
1964 IMPALA w/ AC ACC. KIT
CHECKED BY:
PACKED BY:
DATE:
1
GEN IV 3 VENT
EVAP. SUB CASE
744005
2
ACCESSORY KIT
784164
NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.
REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES.
904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 25 OF 25
w/ AC