The 1988 Ford F250 is a heavy-duty pickup truck featuring robust construction, powerful engine options including the 5.8L Windsor V8 and 7.5L 460 V8, 4-wheel drive capability, manual or automatic transmission options, and durable suspension system. This free online repair manual covers comprehensive maintenance, troubleshooting, and repair procedures for all major systems including engine, transmission, brakes, electrical, and suspension.
Key technical data for the 1988 Ford F250 including engine options, dimensions, capacities, and performance specifications.
| Specification | Details |
|---|---|
| Engine Options | 5.8L Windsor V8, 7.5L 460 V8 |
| Transmission | 4-speed manual, 3-speed automatic |
| Drivetrain | 2WD or 4WD |
| Wheelbase | 133" Regular Cab, 155" SuperCab |
| Payload Capacity | 2,500-4,000 lbs |
| Towing Capacity | Up to 10,000 lbs |
| Fuel Capacity | 19-38 gallons |
| Gross Vehicle Weight | 8,600-10,000 lbs |
| Brake System | Front disc, rear drum |
| Suspension | Twin I-beam front, leaf spring rear |
Comprehensive repair procedures for 5.8L and 7.5L engine configurations including timing, valve adjustments, and component replacement.
WARNING! Always disconnect battery before working on electrical components. Allow engine to cool completely before servicing.
Service procedures for manual and automatic transmissions, transfer case, and differential maintenance.
CAUTION! Use proper jack stands when working under vehicle. Never rely solely on hydraulic jacks.
Wiring diagrams, component testing, and repair procedures for charging, starting, and accessory systems.
Charging System: Alternator testing and replacement, voltage regulator service. Starting System: Starter motor removal, solenoid testing. Ignition System: Distributor service, spark plug replacement, timing adjustment. Lighting: Headlight adjustment, bulb replacement, wiring repair.
Front and rear suspension service including Twin I-beam alignment, steering gear, and component replacement.
Tip: Always replace suspension components in pairs and torque fasteners to specification.
Carburetor service, fuel pump replacement, tank removal, and emission control system maintenance.
WARNING! Relieve fuel system pressure and work in well-ventilated area. No smoking or open flames.
Radiator service, water pump replacement, thermostat service, and cooling system maintenance procedures.
Scheduled maintenance intervals and procedures for optimal vehicle performance and longevity.
CAUTION! Follow factory recommended service intervals. Use specified fluids and lubricants.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Fuel, spark, or compression issue | Check fuel delivery, spark plugs, compression test |
| Poor fuel economy | Carburetor adjustment, timing | Adjust carburetor mixture, check ignition timing |
| Brake pulling | Stuck caliper, contaminated pads | Service calipers, replace brake pads/shoes |
| Electrical issues | Ground connections, alternator | Check grounds, test charging system |
| Transmission slipping | Low fluid, worn components | Check fluid level, inspect for internal wear |
Diagnostic Tips: Use systematic approach - start with simplest solutions first.
Technical Support: Ford dealerships or certified mechanics for complex issues