Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1973IMPALA NOT AVAILABLE, 5.7L ENG VIN H, NOT AVAILABLE TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSAIR CONDITIONING FLAT RATE
1973 Chevrolet Impala Not Available, 5.7L Eng VIN H, Not Available Trans
Air Conditioning Flat Rate
1973 Chevrolet Impala Not Available, 5.7L Eng VIN H, Not Available TransSECTION Air Conditioning Flat Rate
- Heater System Operations
- Weather Eye Control Assembly - Replace
- Weather Eye Control Cables - Replace
- Heater Blower Switch - Replace
- Blower Motor Resistor - Replace
- Heater Water Valve - Replace
- Heater Hoses - Replace
- Heater Core & Blower Housing - R & R
- Heater Blower Motor - Replace
- Heater Core Housing - R & R
- Blower Motor Housing - R & R
- A/C System Operations
- Notes
- Discharge, Evacuate, Leak Test, Charge, & Performance Test
- Add Partial Charge
- A/C Control Assembly - Replace
- A/C Blower Switch - Replace
- Evaporator & Housing - R & R
- Temperature Control Thermostat - Replace
- Vacuum Storage Tank - Replace
- A/C Temperature Override Switch - Replace
- A/C Micro Switch - Replace
- Expansion Valve - R & R
- A/C Idler Pulley - R & R
- A/C Back Idler Pulley - Replace
- Compressor & Clutch Assembly - R & R
- Compressor Front Bearing & Seal Plate - Replace
- Compressor Rear Bearing Plate Gasket - Replace
- Compressor Valve Plate - Replace
- Compressor Clutch Pulley - Replace
- A/C Drive Belt - Adjust
- Condenser - R & R
- A/C Hose - Replace
- Damper Door Vacuum Motor - Replace
- CHRYSLER Corp.
- Heater System Operations
- Heater Control - Replace
- Heater Core (Front) - Replace
- Heater Core (Rear) - Replace
- Heater Housing (Front) - Replace
- Heater Hoses (Front) - Replace
- Heater Hoses (Rear) - Replace
- Heater Blower Motor (Front) - Replace
- Heater Blower Motor Switch (Front) - Replace
- Heater Blower Motor (Rear) - Replace
- Heater Blower Motor Switch (Rear) - Replace
- Heater Blower Motor Resistor - Replace
- Temperature Control Cable - Replace
- Heater Defroster Control Cable - Replace
- Rear Heater Water Valve - Replace
- A/C Systems Operations
- Notes
- A/C System - Charge
- A/C System - Partial Charge
- Heater Core - Replace
- Heater Water Valve - Replace
- Temperature Control Cable - Replace
- Blower Motor Switch - Replace
- Compressor Assembly - Replace
- Compressor Clutch Pulley W/Hub - Replace
- Seal Compressor Shaft - Replace
- Compressor Valve Plates - Replace
- EPR Valve - Replace
- Compressor Clutch Bearing - Replace
- Compressor Clutch Field Coil - Replace
- Receiver-Drier - Replace
- Condenser - Replace
- Blower Motor - Replace
- Blower Motor Resistor - Replace
- Evaporator Coil - Replace
- Expansion Valve - Replace
- ATC System Operations
- Potentiometer - Replace
- Compressor Ambient Switch - Replace
- Ambient Sensor - Replace
- In Car Sensor - Replace
- Blower Motor Resistor - Replace
- Master Switch - Replace
- Compressor Clutch Switch - Replace
- Cold Engine Lockout Switch - Replace
- Amplifier - Replace
- Power Servo - Replace
- ETR Switch - Replace
- Check Valves - Replace
- Low Pressure Cut-Off Switch - Replace
- Sight Glass - Replace
- Heater System Operations
- Ford Motor Co.
- Heater Systems Operations
- A/C System Operations
- Notes
- Evacuate, Charge, Pressure Test & Leak Test System
- Purge, Evacuate, Pressure Test, & Recharge System
- Evaporator Thermostatic Switch - Replace
- Compressor Shaft Seal Kit - Replace
- Compressor Valve Plate - Replace
- Clutch Pulley Bearing - Replace
- Condenser Assembly - Replace
- Compressor Valve Or Gasket - Replace
- Expansion Valve - Replace
- Receiver Drier - Replace
- Evaporator Core - Replace
- Pressure Relief Valve - Replace
- Compressor Assembly - Replace
- A/C Blower Motor Switch - Replace
- A/C Blower Motor - Replace
- Hose, Receiver-Drier To Evaporator Replace
- Hose, Evaporator To Compressor - Replace
- Hose, Compressor To Condenser - Replace
- Air Door Vacuum Motor - Replace
- Control Box, ATC - Replace
- Ambient Sensor - Replace
- General Motors
- BUICK
- Notes
- Heater System Operations
- Heater Temperature Control Cable - R & R
- Defroster Control Cable - R & R
- Selector Vacuum Valve - R & R
- Heater Hoses - R & R
- Heater Core - R & R
- Heater Blower Motor - R & R
- Heater Blower Switch - R & R
- A/C System Operations
- Notes
- Compressor Assembly - Replace
- Compressor Hub & Drive Plate - R & R
- Compressor Pulley & Bearings - R & R
- Compressor Clutch Coil - Replace
- Compressor Shaft Seal - Replace
- Compressor Rear Head - Oil Pump Gears And/Or Rear Reed Assembly - R & R
- Compressor Internal Cylinder - R & R
- Compressor Assembly - Overhaul
- Compressor Front Head And/Or Front Reed Assembly - R & R
- Compressor Pressure Relief Valve - R & R
- Compressor Super Heat Switch - R & R
- Compressor Drive Belt - R & R
- Condenser - R & R
- Receiver-Drier - R & R
- Evaporator Core - R & R
- Expansion Valve - R & R
- VIR Assembly - R & R
- POA Valve - R & R
- Heater Water Valve - R & R
- Heater Core - R & R
- A/C Blower Motor - R & R
- A/C Blower Motor Resistor - R & R
- A/C Blower Motor Switch - R & R
- Thermal Limiter Fuse - R & R
- A/C Hose, Compressor To Condenser - R & R
- A/C Hose, Receiver-Drier To Expansion Valve - R & R
- A/C Hose, Evaporator To Compressor - R & R
- "O" Ring Seals (Refrigerant Lines) - R & R
- Temperature Door Cable - R & R
- ATC System Operations
- CADILLAC
- Heater System Operations
- A/C System Operations
- Notes
- Compressor Replace
- Compressor Pulley Bearing - Replace
- Compressor Clutch Coil - Replace
- Compressor Front Seal - Replace
- Rear Compressor Head, Oil Pump Gears And/Or Valve ASSY. - Replace
- Internal Cylinder - R & R
- Evaporator Assembly R & R
- Ac & Heater Air Selector Assembly - R & R
- Suction Throttling Valve - Replace
- Expansion Valve Replace
- Blower Motor R & R
- Pipes & Hoses
- ATC System Operations
- CHEVROLET
- Heater System Operations
- A/C Systems Operations
- Notes
- Compressor Assembly - Replace
- Compressor Hub & Drive Plate - Replace
- Compressor Pulley Bearing - Replace
- Compressor Coil Housing Assembly - Replace
- Compressor Shaft Seal Assembly - Replace
- Compressor Relief Valve - Replace
- Compressor Rear Head And/Or Reed Assembly - Replace
- Compressor Front Head And/Or Reed Assembly - Replace
- Compressor Assembly - Overhaul
- Condenser - Replace
- Sight Glass - Replace
- Receiver-Drier - Replace
- Valves In Receiver Assembly (Corvette Only) - Replace
- Evaporator - Replace
- Expansion Valve - Replace
- A/C Blower Motor - Replace
- A/C Blower Switch - Replace
- Engine Thermal Switch - Replace
- A/C Blower Resistor - Replace
- A/C Relay - Replace
- A/C Clutch Switch (Low Blow) - Replace
- Ambient Temperature Switch - Replace
- A/C Control Assembly - Replace
- POA Valve - Replace
- Vacuum Tank - Replace
- Compressor Superheat Shut-Off Switch - Replace
- ATC System Operations
- Control Cable Operations (Heater)
- Control Cable Operations (A/C)
- Control Diaphragm Operations
- CHEVROLET VEGA
- Heater Systems Operations
- A/C Systems Operations
- Notes
- Compressor Assembly - Replace
- Compressor Hub & Drive Plate - Replace
- Compressor Pulley Bearing - Replace
- Compressor Coil Housing Assembly - Replace
- Compressor Shaft Seal Assembly - Replace
- Compressor Relief Valve - Replace
- Compressor Rear Head And/Or Reed Assembly Replace
- Compressor Front Head And/Or Reed Assembly Replace
- Compressor Assembly - Overhaul
- Condenser Replace
- Sight Glass Replace
- Accumulator Assembly - Replace
- Evaporator Assembly - Replace
- A C Blower Motor Replace
- A C Blower Switch Replace
- A C Blower Resistor - Replace
- Ac Relay Replace
- A C Control Assembly Replace
- Control Cable Operations (Heater)
- Control Cable Operations (A/C)
- OLDSMOBILE
- Notes
- Heater Systems Operations
- A/C Systems Operations
- Notes
- A/C Control & Attaching Parts - R & R
- Control Cable - R & R
- Heater Hoses & Valve - R & R
- Blower Motor - R & R
- A/C & Heater Case - R & R
- Compressor Front Seal - R & R
- Compressor Assembly - R & R
- Pressure Relief Valve - R & R
- Superheat Switch - R & R
- Sight Glass - R & R
- Receiver-Drier - R & R
- Condenser - R & R
- Expansion Valve - Replace
- POA Valve - Replace
- VIR Assembly - R & R
- ATC System Operations
- PONTIAC
- Notes
- Heater System Operations
- A/C System Operations
- Notes
- Compressor Assembly - Replace
- Compressor Shaft Seal - Replace
- Compressor Drive Plate - Replace
- Puller Or Bearing - Replace
- Clutch Coil & Housing - Replace
- Compressor Belt - Replace
- Superheat Shut-Off Switch - Replace
- Thermal Limiter - Replace
- POA Valve - Replace
- Expansion Valve - Replace
- Evaporator Core - Replace
- Condenser - Replace
- Receiver-Drier - Replace
- A/C Blower Motor - Replace
- Heater Core - Replace
- Cam Assembly, Temp. Door - Replace
- Temperature Cable - Replace
- Air Outlet Cable - Replace
- Defroster Cable - Replace
- Blower Motor Relay - Replace
- Blower Speed Switch - Replace
- Compressor Clutch Switch - Replace
- A/C Blower Motor Resistor - Replace
- UNDERHOOD Ambient Switch - Replace
- Heater Hoses - Replace
- Eater Water Control Valve - Replace
- VIR Assembly - Replace
- Hose POA Valve Or VIR Assembly To Compressor - Replace
- Hose Muffler To Condenser - Replace
- Muffler & Compressor Fitting - Replace
- ATC System Operations
- Jeep
- Heater System Operations
- A/C System Operations
- Notes
- Discharge, Evacuate, Charge, Leak Test & Performance Test
- Add Partial Charge
- Evaporator & Housing Assembly - Replace
- Vacuum Motors - Replace
- Expansion Valve - Replace
- Air Conditioning Drive Belt - Adjust
- Compressor & Clutch Assembly - R & R
- Compressor Front Bearing, Seal Plate, & Seal Ring - Replace
- Compressor Bottom Plate Gasket - Replace
- Compressor Valve Plate - Replace
- Compressor Clutch Pulley - Replace
- Air Conditioning Hose High Or Low Pressure - Replace
- Condenser - R & R
- Receiver-Drier - Replace
- BUICK
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.