Maverick and Comet Repair

Vacuum Diagrams

• 1970-1972
• 1973 without A/C
• 1973 with A/C
• 1974 without A/C
• 1974 with A/C
• 1975 without A/C
• 1975 with A/C
• 1976 without A/C
• 1976 with A/C
• 1977 without A/C
• 1977 with A/C

Emission Controls

• Positive Crankcase Ventilation System
• Fuel Evaporative Control System
• Improved Combustion System
• Heated Air Intake System
• Dual Diaphragm Distributors
• Ported Vacuum Switch (Distributor Vacuum Control Valve)
• Spark Delay Valve
• Distributor Modulator (Dist-0-Vac) System
• Electronic Spark Control System
• Transmission Regulated Spark System
• Exhaust Gas Recirculation System
• EGR System Venturi Vacuum Amplifier
• EGR/Coolant Spark Control (CSC) System
• Temperature Activated Vacuum (TAV) System
• Cold Temperature Activated Vacuum (CTAV) System
•  Thermactor System
• Vacuum Operated Heat Control Valve (VOHV)
• Catalytic Converter System
• Positive Crankcase Ventilation System
• Fuel Evaporative Control System
• Exhaust Gas Recirculation System
• EGR Supply Passages and Carburetor Spacer Cleaning
•  EGR Exhaust Gas Channel Cleaning
• Thermactor Air Pump Drive Belt Replacement and/or Adjustment

Component Testing

• PCV Valve Test
• Heated Air Intake System
• Thermostat Operated Type—1970-72 Test
• Vacuum Operated Type—1973-77
• Duct And Valve Assembly Test
• Vacuum Motor Test
• Dual Diaphragm Distributor Advance And Retard Mechanisms Test
• Ported Vacuum Switch (distributor Vacuum Control Valve) Test
• Deceleration (distributor Vacuum Advance Control) Valve Test
• Spark Delay Valve Test
• Distributor Modulator System Test
• Speed Sensor Test
• Thermal Switch Test
• Control Module Test
• Electronic Spark Control System Test
• Vacuum Passages Check
• Temperature Sensor Test
• Speed Sensor Test
• Distributor Modulator Vacuum Valve And Amplifier Test
•  Transmission Regulated Spark System Test
• Exhaust Gas Recirculation System Test
• Temperature Cut-In Valve (EGR Ported Vacuum Switch)
•  Vacuum Modulator Test
• EGR Venturi Vacuum Amplifier System Test
• Temperature Activated Vacuum System Test
• Temperature Switch Test
• 3-Way Solenoid Valve Test
• Thermactor System
• Fabricating A Test Gauge Adapter
• Air Pump Tests
• Belt Tension and Air Leaks
• Air Output Test
• Pump Noise Diagnosis
• Check Valve Test
• Air By-Pass Valve Test

Component Replacement

• PVC Valve
• Evaporative Control Charcoal Canister
• Ported Vacuum Switch (distributor Vacuum Control Valve)
• Temperature Operated Duct And Valve Assembly
• Vacuum Operated Duct And Valve Assembly
• Spark Delay Valve
• DIST-O-VAC and ESC Temperature Sensor
• DIST-O-VAC and ESC Speed Sensor
• ESC Amplifier
• ESC Distributor Vacuum Modulator Valve
• Thermactor Air Pump
• Thermactor Air Pump Filter Fan
• Thermactor Check Valve
• Thermactor Air By-pass Valve