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1991 Ford F-150 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Ford REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
A/C & Cooling System Maintenance -> Ford Motor Co. -> 1990-93 Ford Bronco, E-Series, Expedition, F-Series & F-Super Duty
Vehicle: 1991 Ford F-150 Pickup 4.9 L6 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
HYDRAULIC BRAKE SYSTEMS, FORD -> DESCRIPTION -> Combination Valve -> Height Sensing Proportioning Valve -> HYDRAULIC CONTROL VALVES -> Integral Bypass Proportioning Valve -> MASTER CYLINDER
Vehicle: 1991 Ford F-150 Pickup 5.8 V8 GAS
MASTER CYLINDER
The master cylinder consists primarily of a hydraulic cylinder, primary and secondary hydraulic pistons and a single or dual chamber fluid reservoir. The front brakes are connected to the primary outlet port(s) and are actuated by the primary piston assembly. The rear brakes are connected to the secondary outlet port and are actuated by the secondary piston assembly.
HYDRAULIC CONTROL VALVES
Combination Valve
This multi-function hydraulic control unit consists primarily of a pressure differential valve, brake lamp warning switch and a proportioning valve. A pressure diff...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
Ford Motor Co. Light Trucks, SUVs & Vans -> Component Locations -> 1985-96 Bronco & F150-350 & 1997 F250HD & F350 w/Fuel Injected Engines -> 2WD -> 4WD
Vehicle: 1991 Ford F-150 Pickup 5.8 V8 GAS
2WD
Refe...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
DRIVESHAFT, Replace -> Front -> One Piece Driveshaft -> Rear -> Three Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1991 Ford F-150 Pickup Super CAB 5.8 V8 GAS
Front
- Raise and support the vehicle.
- Index-mark front driveshaft to front axle flange and at transfer case flange.
- Remove and discard bolts and U-joint retainers.
- Remove and discard four flange bolts.
- Compress and separate front driveshaft from front axle, then separate driveshaft from transfer case. Wrap electrical tape around the bearing cups to prevent them from falling off the U-joint spider.
- Reverse procedure to install, noting the following:
- Torque flange bolts to 30 ft. lbs.
- Torque U-joint retainer bolts to 16 ft. lbs.
Rear
One Piece Driveshaft
- Raise and support vehicle.
- To maint...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
Alternator, Replace
Vehicle: 1991 Ford F-150 Pickup 5.0 V8 GAS
- Disconnect battery ground cable.
- Remove air cleaner assembly, if required.
- Disconnect wire harness connectors from voltage regulator.
- Remove accessory drive belt.
- Remove alter...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
Ford Motor Co. Trucks -> Charge System Warning Indicator ->
Vehicle: 1991 Ford F-150 Pickup 5.8 V8 GAS
The charge system warning indicator lamps are used to warn of no alternator output. When ignition switch contacts are closed, current flows through charge indicator and pa...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
Radiator, Replace
Vehicle: 1991 Ford F-150 Pickup Super CAB 5.0 V8 GAS
- Disconnect negative battery cable at battery.
- Drain cooling system into a suitable container.
- Remove overflow tube from coolant recovery bottle and detach it from radiator shroud.
- Remove four shroud attaching bolts and position it over fan.
- Remove lower radiator hose and position aside.
- Remove upper radiator hose and p...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Ford F-150 Pickup AUTOMOBILES
Serpentine Drive Belt, Replace -> Automatic Tension -> Manual Tension
Vehicle: 1991 Ford F-150 Pickup Super CAB 5.0 V8 GAS
Automatic Tension
- Install suitable 5/16 inch closed end wrench on tensioner pulley bolt, then lift tensioner arm away from belt. Do not use socket and ratchet.
- Remove belt, slowly release tensioner. Do not allow tensioner to snap back, as damage may result.
- Reverse procedure to install.
Manual Tension
- Loosen accessory adjustment bolt and pivot bolt.
- Remove belt.
- Reverse procedure to install, adjust belt tension as follows:
- Lo...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Ford F-150 Pickup AUTOMOBILES
Component location diagrams for most 1991 Ford F-150 Pickup cars and light trucks sold in the U.S. from 1990+.
Body Components Diagram for 1991 Ford F-150 Pickup Super CAB 4.9 L6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1991 Ford F-150 Pickup AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Ford F-150 Pickup cars and light trucks sold in the U.S.
1991 Ford F-150 Pickup Super CAB 5.0 V8 GAS Wiring Diagram Components on diagram: |
1991 Ford F-150 Pickup Super CAB 5.0 V8 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Ford F-150 Pickup AUTOMOBILES
OEM TSB listings for most 1991 Ford F-150 Pickup cars and light trucks sold in the U.S. from 1985+.
Document: MERCON ATF IS BRING REPLACED BY MERCON V ATF AS A SERVICE FLUID Vehicle: 1991 Ford F-150 Pickup 5.0 V8 GAS Auto Systems: |
Document: TRANSMISSION - 4R100/E40D - TORQUE CONVERTER ACCESS EXTERNAL DUST PLUG MAY BECOME DISLODGED Vehicle: 1991 Ford F-150 Pickup 5.0 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Ford F-150 Pickup AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Ford F-150 Pickup 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 1991 Ford F-150 Pickup 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 1991 Ford F-150 Pickup 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 1991 Ford F-150 Pickup 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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