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.
1979 Ford FiestaFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
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Quick Lookups
- Accessories & Equipment
- Body & Frame
- Brakes
- Brakes Control Systems
- Mechanical - Hydraulic
- BENDIX/DELCO-Moraine Dual Piston Master Cylinder
- Brake System Trouble Shooting
- Brake Systems - BENDIX Single Anchor Automatic Adjuster
- Brake Systems - BENDIX Single Piston Disc
- Brakes
- Hydraulic Brake Bleeding
- Hydraulic System Control Valves
- Power Brake Units - BENDIX HYDROBOOST
- Power Brake Units - BENDIX Single Diaphragm
- Drivelines & Axles
- Electrical
- Body Electrical
- Defoggers - Rear Window
- Door & Tailgate Locks
- Fiesta
- Key Warning Buzzers
- Rear Window Defogger Fan
- Seat Back Latches - Electric
- Seat Belt Warning Systems
- Seat Controls - Electric - Ford 6-Way
- Speed Control Systems - Automatic
- Sun & Moon Roofs - Electric
- Switches, Gauges & Instrument Panels
- Trunk Lid Latches - Electric
- Window Controls - Electric
- Charging Systems
- Component Locations
- Fuses & Circuit Breakers
- Gauges
- Horns
- Motors, Switches, Relays
- Defoggers - Rear Window
- Door & Tailgate Locks
- Fiesta
- Key Warning Buzzers
- Rear Window Defogger Fan
- Seat Back Latches - Electric
- Seat Belt Warning Systems
- Seat Controls - Electric - Ford 6-Way
- Speed Control Systems - Automatic
- Sun & Moon Roofs - Electric
- Switches, Gauges & Instrument Panels
- Trunk Lid Latches - Electric
- Window Controls - Electric
- Starter
- Wiring Diagrams
- Body Electrical
- Engine Mechanical
- Auxiliary Emission Control Systems
- Air Injection System
- Catalytic Converters
- Cold Start Spark Advance
- Cold Temperature Activated Vacuum
- Crankcase Ventilation
- Distributor Vacuum Vent Valve
- Electric Assist Choke
- Evaporative Emissions System
- Exhaust Gas RECIRCULATION (EGR) System - Fiesta
- Ford & BOSCH Dual Diaphragm Vacuum Unit
- Fuel Tank Vapor Control
- Ported Vacuum Switches
- Positive Crankcase Ventilation System (PCV)
- THERMACTOR I System
- THERMACTOR II Pulse Air System
- Thermostatic Air Cleaner
- Thermostatic Air Cleaners - All Manufacturers
- Variable Speed Cooling Fans
- Cooling System (Mechanical)
- Exhaust
- Fuel System
- Mechanical
- Starter
- Auxiliary Emission Control Systems
- Engine Performance
- General Information
- Abbreviations
- Basic Trouble Shooting
- Basic Trouble Shooting - General Information
- Charging System Troubleshooting
- Clutch Trouble Shooting
- Commonly Used Abbreviations - General Information
- Cooling System Trouble Shooting
- Drive Axle Trouble Shooting
- Emission Control Abbreviations
- Engine Performance - Trouble Shooting - General Information
- Gasoline & Diesel Engine Trouble Shooting
- General Servicing
- Manual A/C Systems - Trouble Shooting & Diagnosis
- Manual/Power Steering Trouble Shooting
- Starting Systems Trouble Shooting
- Suspension Trouble Shooting
- Wheel Alignment (Troubleshooting)
- Brakes
- Check Lists
- Driveline/Axles
- Electrical
- Engine
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- Waveforms - Injector Pattern Tutorial - General Information
- Map - Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Hoist/Jack
- Identification
- Metric Conversions
- Specifications Index
- Steering
- Towing Procedure
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- Maintenance
- Restraints
- Steering
- Suspension
- Transmission
- External Pages
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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