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1990 Ford Bronco II CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Ford REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Wiring Diagrams
- Technical Service Bulletins
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- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

BRAKE SERVICE PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
ANTI-LOCK BRAKE SYSTEM, FORD -> SYSTEM SELF-TEST FEATURE
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
Two warning lamps are located on the instrument panel to alert the driver to a system malfunction. The red brake warning lamp is used to indicate conventional brake system malfunctions such as low fluid level, parking brake applied and low vacuum conditions (diesel engines only). The yellow anti-lock system warning lamp is used to indicate proper warning lamp circuit operation (2 second illumination with ignition On or engine cranking). If yellow lamp comes on while vehicle is being driven, it is alerting the driver of an anti-lock system malfunction and yellow lamp can...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
Ford Motor Co. Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Except Diesel Engines & Villager
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
The fuel system remains under high pressure even when the engine is not running. This residual pressure must be relieved before servicing the fuel system. To avoid injury or fire, release pressure from the fuel system before disconnecting any fuel line.
The fuel system pressure must be relieved prior to disconnecting fuel lines to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven 10 miles or more while it relearns its adaptive strategy.
On model...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble -> Single Cardan, Flange Yoke -> Single Cardan, Slip Yoke
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
Single Cardan, Slip Yoke
Disassemble
Do not, under any circumstance, clamp the shaft in the jaws of a vise or similar holding fixture. Denting or localizing fracture can result, causing shaft failure during vehicle operation. Place the shaft on a suitable workbench. Do not damage the tube. If components are not marked and installed incorrectly, driveline imbalance can occur.
- Index-mark the shaft components.
- Remove and discard all four snap rings.
- Clamp bearing cup removal tool No. 205-086 or equivalent in a vise.
- If necessary, use a pair of pliers to remove a bearing cup t...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
Starter, Replace
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
- Disconnect battery ground cable.
- Raise and support vehicle, if required.
- Disconnect electrical connector or solenoid relay wire from starter motor.
- Remove starter motor attachi...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
Ford Motor Co. Trucks -> Fuel Reset ->
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
The FUEL RESET indicator is grounded through the inertia switch whenever vehicle is in a high force situation. The Inertia F...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
Inlet
- Drain cooling system into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at coolant tube and remove hose.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Ford Bronco II AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Ford Bronco II 2.9 V6 GAS
- Loosen adjustment and pivot bolts.
- On models equipped with automatic tensioners,lift tensioner by rotating it counterclockwise.
- On all models, remove old belts.
- Install new belts, ensure proper belt groove contact.
- On models less automatic tensioners, adjust belt tension as follows:
- Install a suitable belt tension gauge tool, at ...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Ford Bronco II AUTOMOBILES
Component location diagrams for most 1990 Ford Bronco II cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Ford Bronco II AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Ford Bronco II cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Ford Bronco II AUTOMOBILES
OEM TSB listings for most 1990 Ford Bronco II cars and light trucks sold in the U.S. from 1985+.
Document: WHINING / BUZZING NOISE COMES THROUGH ENTERTAINMENT OR TWO-WAY RADIO SPEAKER Vehicle: 1990 Ford Bronco II 2.9 V6 GAS Symptoms: |
Document: FORD MOTOR COMPANY POSITION ON PROPYLENE GLYCOL-BASED ENGINE COOLANTS Vehicle: 1990 Ford Bronco II 2.9 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Ford Bronco II AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Ford Bronco II cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1990 Ford Bronco II cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1990 Ford Bronco II cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1990 Ford Bronco II cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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