Gary's Garagemahal (the Bullnose bible)
  • Bullnose Forum
    • Guidelines
    • Ford Truck Show
    • Forum FAQ's
    • Member's Map
    • Forum & Website Issues
    • Test Forum
    • Smilies
  • Documentation
    • Accessories >
      • Air Horns
      • CB Radio
      • Roll Bar
      • Step
      • Tie Down Hooks
      • Tonneau Cover
    • Body >
      • Bronco Rear Window
      • Body Shell, Exterior Trim, Frame & Underbody
      • Door Latches & Locks
      • Door Hinges Checks & Weatherstrips
      • Doors Hood & Tailgate General Service
      • Front Door Window Glass & Mechanisms
      • Hood & Hinges
      • Hood Latch
      • Lock Cylinders & Keys
      • Power Door Locks
      • Power Windows
      • Stationary Glass - Butyl Seal
      • Stationary Glass - Weatherstrip Seal
      • Tailgate
      • Vent Window Mechanism
      • Window Glass & Mechanisms - General Service
    • Bullnose FAQ's
    • Bullnose Upgrades
    • Calibration Info & Part #'s
    • Cooling Systems >
      • Cooling Fan #'s & Illustrations
      • Cooling System Illustrations
      • Coolant Recovery & Windshield Washer Reservoirs
      • Elbows
      • Heater Hoses
      • Hose Clamps
      • Radiator Hoses
      • Radiator Support
      • Radiator Part #'s
      • Shroud Part #'s
      • Thermostats
      • Water Pump #'s & Illustrations
    • Driveline >
      • 4WD Front Hubs & Rotors
      • Axles & Differentials
      • Bell Housings
      • Brakes
      • Calculators
      • Clutches and Linkage
      • Drive Shafts
      • Engine Plates
      • Rear Axle Vents
      • Skid Plates
      • Transfer Cases
      • Transmissions >
        • Transmission & Transfer Case Ratios
        • Automatic Transmission >
          • Automatic Transmission Applications
          • General Automatic Transmission Service
          • Automatic Overdrive (AOD)
          • C6
          • Kickdown Linkage
          • Neutral Start Switch
        • Manual Transmissions >
          • Manual Transmission Applications
          • General Manual Transmission Service
          • 3.03 3-Speed Toploader
          • NP435
          • Single Rail Over Drive (SROD)
          • TOD & SROD Transmissions
          • TOD
          • Warner T-18 & T-19
          • ZF5
        • Over/Under Drives
      • Speedometer Gears, Cables, & Sensors
      • Wheels & Tires
      • Wheel Covers
    • Electrical >
      • 3G Conversion >
        • 3G Conversion - In Development
        • 3G Writeup From Lucas
      • Alternators
      • Ammeter
      • Batteries
      • Battery Cables
      • Battery Trays
      • Circuit Protection
      • Clocks
      • Computer Internals
      • Connectors
      • Distributors
      • Electrical Connectors
      • Electronic Engine Control (EEC)
      • Electricity 099
      • EVTM >
        • 1980 EVTM
        • 1981 EVTM
        • 1985 EVTM
        • 1986 EVTM
        • 1996 EVTM >
          • Index
          • Charging System
          • Daytime Running Lamps
          • Engine Control - 4.9L
          • Engine Control - 5.0L
          • Engine Control - 5.8L Under 8500 GVW
          • Engine Control - 5.8L Over 8500 & 7.5L EEC-IV
          • Engine Control - 7.5L EEC-V
          • Engine Control - Turbo Diesel
          • Fuse Panel & Circuit Protection
          • Grounds
          • How To Use This Manual
          • Ignition System
          • Keyless Entry
          • Power Distribution
          • Speed Control
          • Starting System
          • Transmission Control - 4R70W
          • Transmission Control - E4OD
      • Gauges
      • Ground Wires >
        • Engine-to-Firewall Ground
        • Battery to Ground
        • Battery to RH Fender
        • Firewall to Hood
      • ICVR
      • Ignition
      • Lighting >
        • Dome and Cargo Lights
        • Fog or Driving Lights
        • Headlight Wiring Harness
        • Lighting & Calculations
        • Tag Lights
      • PMGR Starter Wiring
      • Radios
      • Relays
      • Sending Units
      • Speed Control
      • Standard Wire And Color Codes
      • Switches
      • Tachometers
      • Terminals & Connectors
      • Voltage Drop Testing
      • Windshield Wipers
      • Wiring Connectors
      • Wiring Diagrams
      • Wiring Harnesses
      • Wire Routing
    • Emissions >
      • Understanding Emissions Controls
      • Inferred Mileage
      • Thermactor Systems
    • Engines >
      • Compression Ratio Calculator
      • General Engine Service
      • 3.8L (232) V6
      • 300 Six
      • Windsor Series
      • 351M and 400
      • 385 Series
      • IDI Diesel
      • Drive Belts
      • EGR Valves >
        • EGR System Description & Testing
        • EGR Spacer
        • Gasket: Carb/EGR to Intake (9447)
      • Flywheels
      • Manifolds, EGR, Heat Valves, etc
      • Engine Swaps >
        • 300 Six to Small-Block V8
      • Pulleys
      • Starters
    • Exhaust Systems
    • Exterior >
      • Beds, Tailgates, and Components
      • Bumpers
      • Exterior Mirrors
      • Exterior Moulding Retainers
      • Exterior Trim and Moulding
      • Frames >
        • Engine Perches
      • Fuel Filler Doors
      • Name Plates
      • Push Bars
      • Spare Tire Carriers
      • Stationary Glass - Butyl Type Seal
      • Tape And Decal Application
    • Fasteners & Illustrations >
      • Fastener Pictures
      • Fenders and Aprons
      • Frame
      • Headlights and Turn Signals
      • Hood
      • Radiator and Grille
    • Fuel & Air Systems >
      • 1985-1986 Fuel System Adjustments
      • 460 Fuel Systems
      • Air Cleaners
      • Carburetors, Chokes, & EFI >
        • EFI Idle Speed Adjustment
        • Jetting
        • How To Find Carb Parts
        • Chokes
        • Carter YFA 1bbl
        • EFI
        • Edelbrock
        • Motorcraft 2150
        • Holley 4180C
        • Motorcraft 7200 VV
      • Correct Cold Starting Procedures
      • Diagnostics
      • Fuel System Illustrations >
        • Fuel Filler Pipes
        • 1980-84 F-Series & Bronco
        • 1983-84 F-Series Diesel
        • 1983-87 F350 Chassis Cab DRW
        • 1985 F-Series 302 w/EFI
        • 1985-87 Bronco
        • 1985 on F-Series
      • Fuel System Part #'s >
        • Fuel Filler Pipes
        • Fuel Senders & Pumps
        • Fuel Tanks
        • Fuel Tank Selector Switch
        • Fuel Tank Selector Valve
        • Fuel Tank Shields
        • Fuel Vapor Valve
        • Fuel Vapor Separator
      • Fuel System Wiring
    • HVAC >
      • Blend Door Repair
      • HVAC Systems
      • 300 Six Compressor Illustrations
      • Factory A/C Brackets
    • Interchange >
      • Air Conditioning Interchange
      • Alternator Interchange
      • Brake Interchange
      • Carburetor Interchange
      • Crankshaft Interchange
      • Diesel Injector Pump Interchange
      • Distributor Interchange
      • Fuel Pump Interchange
      • Head Interchange
      • Starter Interchange
      • Steering Interchange
      • Window Lift Motor Interchange
      • Water Pump Interchange
    • Interior >
      • Behind The Seat Storage
      • Boots
      • Carpet
      • Dash
      • Doors >
        • Door Locks
        • Door Panels
        • Electric Windows & Locks
        • Handles & Boot
        • Vent Windows
        • Windows
      • Horn Pads
      • Insulation
      • Interior Soft Trim
      • Interior Trim
      • Instrument Panel Name Plates
      • Instrument & Radio Bezels
      • Kick Panels
      • Knobs
      • Painting Gauge Needles
      • Rear Corner Trim
      • Rear View Mirror
      • Salvaging Rosewood
      • Seat Belts
      • Seat Interchangeability
      • Seats & Seat Tracks
      • Sill Plates
      • Steering Columns & Steering Wheels
      • Sun Visors
    • Picture Galleries >
      • 1981 F100 With 318 Miles
      • 1983 XLS Survivor
      • 1983 Ford Bronco 4x4 Dobbs-Stroppe Team Chase Car
      • 1983 Bronco Survivor
      • 1984 Bronco XLT
      • 1984 F150 XL
      • 1984 F150 Survivor
      • 1984 FORD F-150 XLT PICKUP
      • 1985 F-150 Survivor
      • 1985 F150 4×4 Flareside
      • Big Blackie
      • Big Blue >
        • Big Blues Documentation
      • Dad's Truck >
        • Air Cleaner
        • Aluminum Wheel Refinishing
        • Electrical Components >
          • Alternator
          • Battery
          • Power Distribution
        • Gauges
        • Engine
        • Frame
        • Seats
        • Transfer Case
        • Transmission
      • Rusty
    • Reference >
      • Hose & Fittings
      • Standard & Utility Parts Catalog
    • Specifications >
      • Assembly Plants
      • Axle Ratios
      • Body Codes - Interior
      • Build Sheet Interpretation
      • Dimensions and Weights
      • Interior Paint
      • Calibration Codes
      • Certification Label
      • DSO Codes
      • Electrical
      • Engine Codes
      • Exterior Paint Codes
      • 10-01 Identification Codes
      • Lubricant Specifications
      • Model Codes
      • Spring Codes
      • Standard Features And Options
      • Towing
      • Transmission Codes
      • Tape Stripe Codes >
        • Bronco Tape Stripe Codes
        • F-Series Tape Stripe Codes
      • VIN Decoding
    • Suspension & Steering >
      • 2WD Spindles
      • Alignment
      • Body Mounts
      • Crossmembers
      • Front Suspension
      • Steering >
        • General Steering Service
        • Coupling - Rag Joint
        • Manual Steering Gear Box
        • Power Steering
        • Saginaw Conversions
        • Steering Columns
        • Tie Rods and Drag Links
      • Rear Suspension >
        • Auxiliary Springs
        • Rear Springs
      • Sway Bar
    • TSB's >
      • TSB Index
      • TSB Bulletin List
      • Body/Windnoise/Water Leaks/Trim >
        • 81-06-13 Bumper Guard & Tire Carrier
        • 81-7-23 Seat Belts Become Too Tight
        • 83-3-15 Pickup Box Alignment
        • 81-06-15 Pickup Box Wood Floor Replacement
        • 83-13-4 Sheet Metal Welding Procedures
        • 83-16-17 Pickup Box Lean
        • 83-24-18 Swing-Lock Mirror Moves
        • 83-13-22 Electric Mirror Loose Glass
        • 83-24-19 Mirror Head Vibration
        • 87-01-18 Tool Box Mount
      • Electrical / Climate Control / Starting / Charging >
        • 80-4-13S A/C RAPID ON-OFF CYCLING OF COMPRESSOR CLUTCH
        • 81-1-10 FM Radio Interference
        • 81-7-24 Temperature Control Cable Too Long
        • 84-24-9 Noise - Radio Ignition Buzz
        • 87-03-07 EEC-IV Driveability TSB Summary
        • 87-07-20 Radio Ignition Noise
        • 87-21-10 EEC-IV Diagnostics
        • 88-05-07 Malfunction Indicator Light Introduction
        • 89-22-08 Emissions Maintenance Warning Module
        • 90-25-12 Speed Control
        • 96-21-04 2G Alternator Repair
      • Brakes/Steering/Suspension/Wheels >
        • 80-14-14-S STEERING
        • 81-06-04 Integral Power Steering Gear
        • 81-06-16 Front Wheel Grease Seal Gaskets
        • 81-06-17 Rear Parking Brake Cables
        • 81-2-25 REAR SUSPENSION TORQUE SPECS
        • 89-19-01 Brake Noise Recap Of TSB's
        • 89-25-16 Brake Ride Height Proportioning Valve
        • 90-13-9 Frame Cracking At Rear Shock Mount
        • 96-15-11 Frame-Rivet Replacement With Bolts
        • 97-03-10 Frame Creaking/Popping
        • Steering Gear Frame Liner
      • Engine/Cooling System/Exhaust >
        • 81-2-27 ENGINE DETONATION
        • 83-13-7 Correct Oil Fill Level
        • 83-25-21 Air Cleaner Sealing
        • 83-13-8 RTV Sealant - New Material
        • 87-06-10 Stall/No Start: TFI
        • 88-07-16 4.9L Exhaust Manifold Warping
      • Transmission/Clutch/Driveshaft/Axle >
        • 81-5-15 AOD TRANSMISSION
        • 81-06-18 Clutch Housing Fills w/Mud/Dirt
        • 81-07-25 Clutch Shudder/Chatter In Reverse
        • 81-7-26 Missing Shims On SROD
        • 82-25-16(S) Upshift Indicator Light
        • 83-3-23 Axle Lubricant Drain And Refill
        • 83-23-17 8.8" Rear Axle Vent
        • 84-24-13 Transfer Case - Grinding/Block-Out
        • 90-16-07 High Clutch Effort
      • Driveability/Fuel/Ignition/Emissions >
        • 81-6-19 Cold Driveaway Performance Improvements
        • 81-6-20 Piston Slap During Cold Driveaway
        • 81-6-21 Power Valve Vacuum Hose
        • 83-11-12-S Stall/No Start/Hessitation
        • 88-05-14 Low Oil Pressure
        • 91-25-07 IAC Bypass
        • EMW Module
      • Noise/Vibration/Ride/Squeaks/Rattles >
        • 80-1-12-S REAR SPRING SQUEAK
      • Miscellaneous/General >
        • 83-14-1 UNDERHOOD PRODUCTION STAMP RELOCATION
      • Health/Safety/Environmental Hazard information
      • CALIBRATION: 4-53F-R00
      • Fuel Cross-Flow
    • Underhood >
      • Cowl Seal
      • Engine Compartment Lamp
      • Fender Aprons
      • Jacks, Lug Wrenches, etc
      • Speed Control
      • Tool Box
    • Vacuum Systems >
      • Vacuum System Acronyms
      • Vacuum Diagrams >
        • 300 Six
        • 302/5.0L
        • 351W
        • 351M/400
        • 460 V8
      • Vacuum Fittings
      • Vacuum Reservoirs
      • Vacuum System Requirements
      • Vacuum System Testing
    • Metrics
    • About Me/Contact Me >
      • Youth Classes >
        • Automotive Maintenance >
          • Fall of 2015
        • Building Web Sites >
          • Lesson 1
          • Lesson 2
          • Lesson 3
          • LTC
        • Overview of Paul's Life, Journeys, & Works >
          • Lesson 1
          • Lesson 2
      • Projects >
        • Engine Cradle
        • Gauge Pocket
        • Rear Bumper And Spare Tire Carrier
    • Year-To-Year Differences >
      • Door Locks & Turn Signals
    • Test Page
    • 91-6-7 Sterling 10.25 Hub Leaks
  • Manuals & Literature
  • About
  • Truck Shows
    • 2020 Truck Show >
      • Entrant #1: Dad's Truck
      • Entrant #2: Big Blue
      • Entrant #3: Tommy Sides 1986 F150
      • Entrant #4: Darth/Bill Vose
      • Entrant #5: Sam Noller's 1985 Bronco
      • Entrant #6: Mein Laster
      • Entrant #7: Andre's Bronco
      • Entrant #8: Chad's Rosebud
      • Entrant #9: Matthew’s Truck of Doom
      • Entrant #10: Ron's Flareside
      • Entrant #11: Cory's Blue Mule
      • Entrant #12: Ratdude747'S 1984 F150
      • Entrant #13: Ratdude747's '95 Ranger
      • Entrant #14: Heinz' 1986 F150
      • Entrant #15: Anna's Toy
      • Entrant #16: Frank's 1981 F-150 Custom
      • Entrant # 17: Petes 1981 F150 Flareside
      • Entrant #18: Eric's F250 XLT Lariat
      • Entrant #19: Geejaypea's Georgian Hulk
      • Entrant #20: JohnnyBronco85's Bronco
      • Entrant #21: Skaeke's 1985 F150 Lariat
      • Entrant #22: Sam1982's F100
      • Entrant #23: NostraDanus' 1986 Bronco
      • Entrant #24: MarkF100's F100
      • Entrant #25: Bruce moose4x4's 1996 Bronco
      • Entrant #26: Bruce Mooose4x4's 1995 F150
      • Entrant #27: Troy/66gtk's 1983 F150 XL SWB 4x2
      • Entrant #28: Matt Wood's 1985 Bronco
      • Entrant #29: WelderScott's '78 F150
      • Entrant #30: Mehmetcelikel's Brownie Dually
      • Entrant #31: Kristopherdb's 1985 Flairside 4x4
      • Entrant #32: Clifton's Tessa
      • Entrant #33: BinFord's Beverly
      • Entrant #34: BinFord's Crackling Rosie
      • Entrant #35: Dan aka dblohowiak's 1986 F250HD
      • Entrant #36: Jonathan's 1981 F150
      • Entrant #37: Jonathan's 1995 F Superduty
      • Entrant #38: Jonathan's 1986 F350 short bed crew cab IDI
      • Entrant #39: Brian's 1986 F250
      • Entrant #40: Jay's 1986 F150
      • Entrant #41: Eddie's 1981 F100 Custom
      • Entrant #42: Nick & George's Brutus
      • Entrant #43: Matthew's 1983 F350
      • Entrant #44: Hogie's 81 F250
      • Entrant #45: TontoKowalski's 1985 F150
      • Entrant #46: Danny's 1982 Bronco
      • Entrant #47: Greg's 1980 F150 Ranger XLT
      • Entrant #48: Chris' 1982 XLS
      • Entrant #49: Chris' 1985 Bronco
      • Entrant #50: Ken & Kathy's 1977 F250
      • Entrant #51: Ken & Kathy's 1985 Flareside
      • Entrant #52: Kevin/Teach's F250 Lariat
    • 2021 Truck Show
    • 2022 Truck Show
  • New Bullnose Test Forum
  • Bullnose Forum
    • Guidelines
    • Ford Truck Show
    • Forum FAQ's
    • Member's Map
    • Forum & Website Issues
    • Test Forum
    • Smilies
  • Documentation
    • Accessories >
      • Air Horns
      • CB Radio
      • Roll Bar
      • Step
      • Tie Down Hooks
      • Tonneau Cover
    • Body >
      • Bronco Rear Window
      • Body Shell, Exterior Trim, Frame & Underbody
      • Door Latches & Locks
      • Door Hinges Checks & Weatherstrips
      • Doors Hood & Tailgate General Service
      • Front Door Window Glass & Mechanisms
      • Hood & Hinges
      • Hood Latch
      • Lock Cylinders & Keys
      • Power Door Locks
      • Power Windows
      • Stationary Glass - Butyl Seal
      • Stationary Glass - Weatherstrip Seal
      • Tailgate
      • Vent Window Mechanism
      • Window Glass & Mechanisms - General Service
    • Bullnose FAQ's
    • Bullnose Upgrades
    • Calibration Info & Part #'s
    • Cooling Systems >
      • Cooling Fan #'s & Illustrations
      • Cooling System Illustrations
      • Coolant Recovery & Windshield Washer Reservoirs
      • Elbows
      • Heater Hoses
      • Hose Clamps
      • Radiator Hoses
      • Radiator Support
      • Radiator Part #'s
      • Shroud Part #'s
      • Thermostats
      • Water Pump #'s & Illustrations
    • Driveline >
      • 4WD Front Hubs & Rotors
      • Axles & Differentials
      • Bell Housings
      • Brakes
      • Calculators
      • Clutches and Linkage
      • Drive Shafts
      • Engine Plates
      • Rear Axle Vents
      • Skid Plates
      • Transfer Cases
      • Transmissions >
        • Transmission & Transfer Case Ratios
        • Automatic Transmission >
          • Automatic Transmission Applications
          • General Automatic Transmission Service
          • Automatic Overdrive (AOD)
          • C6
          • Kickdown Linkage
          • Neutral Start Switch
        • Manual Transmissions >
          • Manual Transmission Applications
          • General Manual Transmission Service
          • 3.03 3-Speed Toploader
          • NP435
          • Single Rail Over Drive (SROD)
          • TOD & SROD Transmissions
          • TOD
          • Warner T-18 & T-19
          • ZF5
        • Over/Under Drives
      • Speedometer Gears, Cables, & Sensors
      • Wheels & Tires
      • Wheel Covers
    • Electrical >
      • 3G Conversion >
        • 3G Conversion - In Development
        • 3G Writeup From Lucas
      • Alternators
      • Ammeter
      • Batteries
      • Battery Cables
      • Battery Trays
      • Circuit Protection
      • Clocks
      • Computer Internals
      • Connectors
      • Distributors
      • Electrical Connectors
      • Electronic Engine Control (EEC)
      • Electricity 099
      • EVTM >
        • 1980 EVTM
        • 1981 EVTM
        • 1985 EVTM
        • 1986 EVTM
        • 1996 EVTM >
          • Index
          • Charging System
          • Daytime Running Lamps
          • Engine Control - 4.9L
          • Engine Control - 5.0L
          • Engine Control - 5.8L Under 8500 GVW
          • Engine Control - 5.8L Over 8500 & 7.5L EEC-IV
          • Engine Control - 7.5L EEC-V
          • Engine Control - Turbo Diesel
          • Fuse Panel & Circuit Protection
          • Grounds
          • How To Use This Manual
          • Ignition System
          • Keyless Entry
          • Power Distribution
          • Speed Control
          • Starting System
          • Transmission Control - 4R70W
          • Transmission Control - E4OD
      • Gauges
      • Ground Wires >
        • Engine-to-Firewall Ground
        • Battery to Ground
        • Battery to RH Fender
        • Firewall to Hood
      • ICVR
      • Ignition
      • Lighting >
        • Dome and Cargo Lights
        • Fog or Driving Lights
        • Headlight Wiring Harness
        • Lighting & Calculations
        • Tag Lights
      • PMGR Starter Wiring
      • Radios
      • Relays
      • Sending Units
      • Speed Control
      • Standard Wire And Color Codes
      • Switches
      • Tachometers
      • Terminals & Connectors
      • Voltage Drop Testing
      • Windshield Wipers
      • Wiring Connectors
      • Wiring Diagrams
      • Wiring Harnesses
      • Wire Routing
    • Emissions >
      • Understanding Emissions Controls
      • Inferred Mileage
      • Thermactor Systems
    • Engines >
      • Compression Ratio Calculator
      • General Engine Service
      • 3.8L (232) V6
      • 300 Six
      • Windsor Series
      • 351M and 400
      • 385 Series
      • IDI Diesel
      • Drive Belts
      • EGR Valves >
        • EGR System Description & Testing
        • EGR Spacer
        • Gasket: Carb/EGR to Intake (9447)
      • Flywheels
      • Manifolds, EGR, Heat Valves, etc
      • Engine Swaps >
        • 300 Six to Small-Block V8
      • Pulleys
      • Starters
    • Exhaust Systems
    • Exterior >
      • Beds, Tailgates, and Components
      • Bumpers
      • Exterior Mirrors
      • Exterior Moulding Retainers
      • Exterior Trim and Moulding
      • Frames >
        • Engine Perches
      • Fuel Filler Doors
      • Name Plates
      • Push Bars
      • Spare Tire Carriers
      • Stationary Glass - Butyl Type Seal
      • Tape And Decal Application
    • Fasteners & Illustrations >
      • Fastener Pictures
      • Fenders and Aprons
      • Frame
      • Headlights and Turn Signals
      • Hood
      • Radiator and Grille
    • Fuel & Air Systems >
      • 1985-1986 Fuel System Adjustments
      • 460 Fuel Systems
      • Air Cleaners
      • Carburetors, Chokes, & EFI >
        • EFI Idle Speed Adjustment
        • Jetting
        • How To Find Carb Parts
        • Chokes
        • Carter YFA 1bbl
        • EFI
        • Edelbrock
        • Motorcraft 2150
        • Holley 4180C
        • Motorcraft 7200 VV
      • Correct Cold Starting Procedures
      • Diagnostics
      • Fuel System Illustrations >
        • Fuel Filler Pipes
        • 1980-84 F-Series & Bronco
        • 1983-84 F-Series Diesel
        • 1983-87 F350 Chassis Cab DRW
        • 1985 F-Series 302 w/EFI
        • 1985-87 Bronco
        • 1985 on F-Series
      • Fuel System Part #'s >
        • Fuel Filler Pipes
        • Fuel Senders & Pumps
        • Fuel Tanks
        • Fuel Tank Selector Switch
        • Fuel Tank Selector Valve
        • Fuel Tank Shields
        • Fuel Vapor Valve
        • Fuel Vapor Separator
      • Fuel System Wiring
    • HVAC >
      • Blend Door Repair
      • HVAC Systems
      • 300 Six Compressor Illustrations
      • Factory A/C Brackets
    • Interchange >
      • Air Conditioning Interchange
      • Alternator Interchange
      • Brake Interchange
      • Carburetor Interchange
      • Crankshaft Interchange
      • Diesel Injector Pump Interchange
      • Distributor Interchange
      • Fuel Pump Interchange
      • Head Interchange
      • Starter Interchange
      • Steering Interchange
      • Window Lift Motor Interchange
      • Water Pump Interchange
    • Interior >
      • Behind The Seat Storage
      • Boots
      • Carpet
      • Dash
      • Doors >
        • Door Locks
        • Door Panels
        • Electric Windows & Locks
        • Handles & Boot
        • Vent Windows
        • Windows
      • Horn Pads
      • Insulation
      • Interior Soft Trim
      • Interior Trim
      • Instrument Panel Name Plates
      • Instrument & Radio Bezels
      • Kick Panels
      • Knobs
      • Painting Gauge Needles
      • Rear Corner Trim
      • Rear View Mirror
      • Salvaging Rosewood
      • Seat Belts
      • Seat Interchangeability
      • Seats & Seat Tracks
      • Sill Plates
      • Steering Columns & Steering Wheels
      • Sun Visors
    • Picture Galleries >
      • 1981 F100 With 318 Miles
      • 1983 XLS Survivor
      • 1983 Ford Bronco 4x4 Dobbs-Stroppe Team Chase Car
      • 1983 Bronco Survivor
      • 1984 Bronco XLT
      • 1984 F150 XL
      • 1984 F150 Survivor
      • 1984 FORD F-150 XLT PICKUP
      • 1985 F-150 Survivor
      • 1985 F150 4×4 Flareside
      • Big Blackie
      • Big Blue >
        • Big Blues Documentation
      • Dad's Truck >
        • Air Cleaner
        • Aluminum Wheel Refinishing
        • Electrical Components >
          • Alternator
          • Battery
          • Power Distribution
        • Gauges
        • Engine
        • Frame
        • Seats
        • Transfer Case
        • Transmission
      • Rusty
    • Reference >
      • Hose & Fittings
      • Standard & Utility Parts Catalog
    • Specifications >
      • Assembly Plants
      • Axle Ratios
      • Body Codes - Interior
      • Build Sheet Interpretation
      • Dimensions and Weights
      • Interior Paint
      • Calibration Codes
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YOUR CART

ignition

Part #'s for ignition modules, switches, & wiring, a wiring diagram for a one-wire distributor, like an HEI or DUI, & installation instructions for the switch.
  • Instructions
  • Ignition Switch
  • Illustrations
  • Part #'s
  • Ignition Simplification
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The Factory Shop Manual tab below provides information on how the ignition systems work, how to test them, and how to repair them.  The Crane Cams tab provides information on what the different timing mechanisms do & how to modify them to re-curve a distributor.

In addition, Scotty Johnson, The Mad Porter, has instructions on his web site for re-curving a distributor: Page 1 & Page 2
.  (Yes, I know you can get to Page 2 from Page 1, but it isn't obvious.)
  • Factory Shop Manual
  • Crane Cams Instructions
  • 1980 Engine Diagnosis
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This document is from the 1980 factory shop manual section on Engine Diagnosis & Service:
The ignition switch on these trucks can cause a number of problems.  In fact, what most people think of as the switch, the thing into which you put the key, is actually just the ignition lock cylinder.  The switch itself sits lower on the column, as shown in the illustration below.

However, note that on some trucks there's a bracket that holds C305A under the nut holding the switch to the steering column.  You can just see it in the center illustration, but the blow-up in the right illustration (thanks, Jeff) makes it easier to see.
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And here's what that bracket looks like:

​For further discussion regarding the bracket see the thread here and the one here.
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One of the problems trucks of this age frequently have with the switch is that the lubrication has set up and the key doesn't return from Start fully into Run.  In this case the turn signals, clock, and several other items won't work properly, so this is a good tip off of the problem.  This seems to happen most often when the weather gets cold and the lubrication sets up.  If this is the case with your truck, try lubricating the lock cylinder and the link going to the switch.  If that doesn't help then cleaning and lubricating the switch itself may be in order, and to do that a cleaner/lubricant like one made for TV tuners or radio controls works well.

Removal:
  1. Disconnect the battery ground cable
  2. Remove the steering column shroud and lower the steering column
  3. Disconnect the switch wiring at the multiple plug
  4. Remove the two nuts that retain the switch to the steering column
  5. Lift the switch vertically upward to disengage the actuator rod from the switch and remove the switch.

Installation:
  1. When installing the ignition switch, both the locking mechanism at the top of the column and the switch itself must be in LOCK position for correct adjustment.  To hold the mechanical parts of the column in LOCK position, move the shift lever into PARK (with automatic transmissions) or REVERSE (with manual transmissions), turn the key to LOCK position, and remove the key.  New replacement switches, when received, are already pinned in LOCK position by a metal shipping pin inserted in the locking hole on the side of the switch. To insert a pin in a used switch refer to Adjusting.
  2. Engage the actuator rod in the switch.
  3. Position the switch on the column and install the retaining nuts, but do not tighten them.
  4. Move the switch up and down along the column to locate the mid-position of rod lash, and then tighten the retaining nuts.
  5. Remove the locking pin, connect the battery cable, and check for proper start in PARK or NEUTRAL.  Also check to make certain that the start circuit cannot be actuated in the DRIVE and REVERSE position.
  6. Raise the steering column into position at the instrument panel (Part 13-06).  Install steering column shroud.

Adjusting:
  1. Rotate the ignition key back and forth to either side of lock, until a #56 (.0465") drill bit can be inserted through the locking pin hole as far as possible (minimum 3/8").  (Note: I found that a .053" sewing needle is a perfect fit.)  The lock pin hole is located on the right of the switch next to the steering column tube.  See instructions and pictures, below.
  2. Loosen the two ignition switch mounting nuts.
  3. Turn the ignition key to lock (feel for detent) and remove the ignition key.
  4. Move the switch up and down along the column to locate the mid-position of rod lash and tighten the two ignition switch mounting nuts to 4.51-7.34 Nm (40-65 in-lbs).
  5. Remove the drill bit from the ignition switch locking pin hole.
  6. Plug in the electrical connector and operate the lock cylinder to ensure the switch is properly positioned.

​Lock Pin:
Put the lock pin (#56 or 3/64" drill bit) in from the left side of the switch, as shown below, and gently move the switch's internals up and down until the pin goes through the hole inside and comes out on the right side.
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And, if you are testing an ignition switch, here are the pin-outs and continuity tests:
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Finally, here are the part #'s.  Note that the original switches for some trucks were marked E0TA-11572-B1B, but those were replaced by ones marked E4TA-11572-A.
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  • Distributor
  • Wiring
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Bullnose Six Cylinder Distributor
Bullnose 8 Cylinder Distributor
Bullnose 300 Six Ignition Wiring
Bullnose V8 Ignition Wiring
Bullnose 460 Ignition Wiring
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Listings of the ignition modules used on the 1980 - 86 Ford trucks.  The information on the grommet colors was gleaned from Bob's Garage Library and BZEROB.com​.

​My understanding is the blue-grommet module was used without a computer, the EEC-III computer systems used the brown-grommet module, and the EEC-IV computer systems used the yellow-grommet modules with the 2-wire 3rd plug.  I do not know with which computer system the 3-wire 3rd-plug yellow-grommet modules were used, but if you do please edify me.
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Many people are wanting to convert their trucks from Ford's EEC-III or IV ignition system to something that doesn't require a computer.  Basically there are two ways to do that - either convert to a DS-II ignition system or install a one-wire distributor, sometimes called an HEI or DUI.  The tabs below flesh out how to do either of those approaches.

But first, let's think through the advantages and disadvantages to either approach:
  • DS-II
    • ​Advantages:
      • ​Common: With the exception of the wiring harness (see below), all of the parts are readily available at a parts store or salvage, so if it breaks in the back-of-beyond you can easily get back on the road.
      • Plug-And-Play: If you find all the parts it is plug-and-play.
    • Disadvantages:
      • ​Wire harness: These are becoming harder to find in usable form.  And the aftermarket ones are fairly expensive and don't necessarily fit well.
      • Wear: A used distributor can be badly worn.​  But, you can buy new DS-II distributors, and if that's done then this isn't a disadvantage.

  • ​​One-Wire:
    • ​Advantages:
      • Advance curve: Many one-wire manufacturers dial in a curve for how you tell them the engine will be built.
      • New: For the most part you'll be buying a new distributor
    • ​Disadvantages:
      • ​Rare: This is the flip-side of the DS-II in that you probably can't walk into any parts store and buy a replacement distributor should yours leave you on the side of the road.
      • ​Wiring: As you'll see on the One-Wire tab, the wiring is fairly straightforward.  However, you will have to do some wiring as there is no kit that I'm aware of that makes this a plug-and-play.
      • Quality: There are good one-wire distributors and there are those that break quickly and frequently.
      • Size: The HEI dizzy is much larger than the DS-II and that can cause problems with fitment.
  • DS-II
  • One-Wire
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On the left below is the EEC wiring diagram from Ford's 1985 EVTM.  While it is for the 4.9L engine, all of the EEC ignitions were wired the same way.  The diagram shows the parts of the ignition system that you won't use if you are converting to a one-wire distributor.  And on the right is an example of how you could wire your truck for a one wire dizzy.  (Click on either to get a larger diagram.)
The relay shown is a common "Bosch" style relay like this one on Amazon.  But, it is going to need some kind of weather protection to live under the hood.  And, you will probably want to get a socket with pigtails to simplify the wiring, like this one on Amazon.

The pull-in voltage comes from the white/light blue wire that was previously connected to either the coil or connector C321.  The power to a one-wire needs to be substantial since they require a lot of current, and should be at least a #12 wire.  You can get that power from Circuit 37, which is a large yellow wire that is usually dead-ended below the brake master cylinder.  If you have a factory auxiliary battery you'll have a relay on the firewall to the right of the master cylinder, and Circuit 37 will be connected to it, as shown below.  Or, if you have the trailering option or a DRW truck you may have a power stud on the firewall with Circuit #37 connected to it.  In any case you can connect to that circuit to get battery power for the ignition.  However, you should put a fuse, probably a 20a one, in the circuit as that wire uses a fusible link that is capable of far more current than you need for the one-wire distributor.
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