The Ford Bronco II spanned model years 1984 through 1990 as a fixed-roof compact two-door SUV on the Ford Ranger platform, distinct from the full-size Bronco. It used a 94-inch wheelbase and launched with the carbureted 2.8-liter Cologne V6, replaced for 1986 by a fuel-injected (multi-port EFI) 2.9-liter Cologne V6. The gasoline lineup was V6-only, with a Mitsubishi-sourced 2.3-liter turbodiesel offered briefly around 1986 and 1987. Part-time four-wheel drive with electric-shift Touch Drive was offered (Touch Drive added for 1986), in a ladder of Base/XL, XL Sport (sometimes shown as XLS), XLT, and Eddie Bauer trims, with the sport-oriented XL Sport added partway through the run in the mid-to-late 1980s. The Bronco II drew NHTSA scrutiny over rollover propensity. Ford ended the line after 1990 and introduced the four-door Explorer for 1991.
Diagrams and documents by system
Member-uploaded diagrams and documents for this generation, grouped by what you are working on.
Electrical (8)
Ford Ranger 1983-03 & Bronco II 1984-90 Disc Brake Proportioning Valve 50-6380
Auxiliary Cooling Fan Relay & Motor Wiring Diagram - VCM Controlled, Fuse Block
Engine Compartment Wiring Harness Diagram - Underhood Fuse Block & Relay Locations
AIR Injection & EGR Valve Pipe Routing Diagram - Engine Component Locations
1984 Ford Bronco II Exhaust Path Diagram - Turn-Down Exit Routing Sketch
Ford Bronco II Rear Leaf Spring Z-Spring Schematic - 3-Piece Flex Design DiagramParts and body (1)
Identification (1)
Service and literature (4)
'86 Bronco II Wagon (4WD) NADAguides pricing printout with low, average and high retail values
Ford Bronco II 2.9 to 4.0 Engine Swap Wiring Connector Pinout Cross-Reference
'84 Bronco II 2 Door Wagon 4x4 NADAguides pricing printout with low, average and high retail values
Shelby Time Line placard for the 1962 Shelby Cobra CSX2000 "The One" with photo and history text1984-1990 Ford Bronco II specifications
Engines and transmissions by year
| Year | Engines | Transmissions |
|---|---|---|
| 1984 | 171 cu in (2.8L) Cologne V6, 2-bbl | 4-speed manual; Ford C5 3-speed automatic |
| 1985 | 171 cu in (2.8L) Cologne V6, 2-bbl | 5-speed manual; Ford A4LD 4-speed overdrive automatic |
| 1986 | 177 cu in (2.9L) Cologne V6, electronic fuel injection | 5-speed manual; Ford A4LD 4-speed overdrive automatic |
| 1987 | 177 cu in (2.9L) Cologne V6, electronic fuel injection | 5-speed manual; Ford A4LD 4-speed overdrive automatic |
| 1988 | 177 cu in (2.9L) Cologne V6, electronic fuel injection | 5-speed manual; Ford A4LD 4-speed overdrive automatic |
| 1989 | 177 cu in (2.9L) Cologne V6, electronic fuel injection | 5-speed manual; Ford A4LD 4-speed overdrive automatic |
| 1990 | 177 cu in (2.9L) Cologne V6, electronic fuel injection | 5-speed manual; Ford A4LD 4-speed overdrive automatic |
Firing order
| Engine | Firing order |
|---|---|
| 171 cu in (2.8L) and 177 cu in (2.9L) Cologne V6 | 1-4-2-5-3-6 |
Transfer cases
| Transfer case |
|---|
| Borg-Warner 1350 (1984-1990) |
Axles and ratios
| Axle | Ratios |
|---|---|
| Front Dana 28 Twin Traction Beam (4WD) | 3.45, 3.73, 4.10 |
| Rear Ford 7.5-inch | 3.45, 3.73, 4.10 |
Torque specifications
| Fastener | Torque |
|---|---|
| Wheel lug nuts | 85-115 ft-lb |
Fluid capacities
| Fluid | Capacity |
|---|---|
| Engine oil with filter, 2.8L and 2.9L V6 | 5 qt |
Colors on the registry
The color families most common among registered Ford Bronco IIs, read from owner photos.
Ford Bronco II registry stats
The wall · registered 1984-1990 Bronco IIs
Sorted by depth of documentation. Click any vehicle to open its permanent record.