Historical Context:
The Ford Sierra was a pivotal model for Ford of Europe, designed as a successor to the Cortina and Taunus. It represented a shift towards more aerodynamic styling and a more modern, spacious interior. The 1988 model year falls within the facelifted Sierra range, which introduced updated styling and features.
Key Competitors:
Opel/Vauxhall Vectra, Volkswagen Passat, Peugeot 405, Renault 21, Fiat Croma
Aerodynamics:
Known for its distinctive 'jelly mold' aerodynamic design, a significant departure from traditional boxy car shapes.
Rear Wheel Drive Bias:
While front-wheel drive was common, performance variants like the Sierra RS Cosworth featured rear-wheel drive for enhanced handling.
Interior Space:
Offered a surprisingly spacious interior for its class, a key selling point.
Engine Mechanical:
Complete engine overhaul, including disassembly, cleaning, inspection, assembly, and timing
Engine Electrical:
Ignition system, starting system, charging system, fuel injection systems (EFI), emission controls
Transmission:
Manual and automatic transmission overhaul, operation, and maintenance
Drivetrain:
Front-wheel drive system, CV joints, driveshafts, differential
Suspension:
Front and rear suspension components, geometry, adjustments, and repair
Steering:
Steering gear, power steering system, linkage, and alignment
Brakes:
Front and rear brake systems (disc and drum), hydraulic system, parking brake
Electrical System:
Wiring diagrams, lighting system, instrument cluster, power windows, central locking
Fuel System:
Fuel tank, fuel pump, fuel lines, fuel injectors, fuel filter
Cooling System:
Radiator, water pump, thermostat, cooling fan, hoses, and coolant specifications
Exhaust System:
Exhaust manifold, catalytic converter, muffler, pipes, and gaskets
Body And Chassis:
Body panels, doors, hood, trunk, interior trim, rust prevention
HVAC:
Heating, ventilation, and air conditioning system (where applicable)
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections
Troubleshooting:
Diagnostic procedures for common problems, fault codes, symptom-based troubleshooting
Repair:
Step-by-step repair instructions for all major components and systems
Disassembly Assembly:
Detailed instructions for removing, overhauling, and reinstalling parts
Cleaning:
Specific instructions for cleaning components during repair
Adjustments:
Alignment, timing, idle speed, and other necessary adjustments
Specifications:
Torque values, clearances, fluid capacities, electrical values
Depth:
Comprehensive, covering routine maintenance to major overhauls and diagnostics
Target Audience:
Professional Technicians and Advanced DIY Mechanics
Engine Options 1988:
Various Ford 'Pinto' and 'Valencia' inline-four engines, including 1.3L, 1.6L, 1.8L, 2.0L petrol, and 1.8L/2.3L Diesel variants. The XR4i and XR4x4 models featured the 2.8L V6.
Engine Code Examples:
LC (1.3L), LD (1.6L), LB (2.0L), YTB (2.0L DOHC), VR6 (2.8L V6)
Hp Range:
Approximately 60 hp (1.3L) to 150 hp (2.8L V6), with performance models exceeding this.
Torque Range:
Approximately 90 Nm (1.3L) to 230 Nm (2.8L V6).
Fuel Delivery:
Carburetor (earlier models and lower trims) or Electronic Fuel Injection (EFI) on higher trims and later models.
Fuel Type:
Unleaded Petrol (Octane rating varies by engine, typically 95 RON recommmended for EFI)
Coolant Type:
Ethylene Glycol based, typically a 50/50 mix with distilled water. Consult manual for specific Ford coolant recommendations (e.g., Ford Premium Gold).
Manual Transmission:
4-speed and 5-speed manual transmissions were common, depending on engine and trim.
Automatic Transmission:
3-speed and 4-speed automatic transmissions were available on select models.
Drivetrain Options:
Front-wheel drive (FWD) standard on most models; Four-wheel drive (4WD) available on Sierra XR4x4 variants.
Manual Transmission Fluid:
API GL-4, SAE 75W-90 or 80W-90 gear oil. Consult manual for exact specifications per transmission type.
Automatic Transmission Fluid:
Ford ESW-M2C138-CJ or equivalent Mercon/Dexron III (check specific transmission type). Capacity around 3-4 liters for drain and fill.
Body Styles:
3-door hatchback, 5-door hatchback, 5-door estate/wagon (Sierra Turnier)
Wheelbase:
Approximately 2600 mm (102.4 inches)
Length:
Varies by body style, roughly 4300-4500 mm (169-177 inches)
Curb Weight:
Approximately 1000-1300 kg (2200-2866 lbs), depending on engine and trim
Gross Vehicle Weight Rating:
Typically around 1600-1800 kg (3527-3968 lbs)
Oil Change Interval:
Typically every 6,000 - 10,000 miles (10,000 - 15,000 km) or 12 months, whichever comes first. Consult manual for specific engine.
Air Filter Replacement:
Every 12,000 - 15,000 miles (20,000 - 25,000 km) or as needed based on driving conditions.
Spark Plug Replacement:
Varies by plug type (copper, platinum). Typically 20,000 - 30,000 miles for copper, up to 60,000 miles for platinum. Consult manual.
Timing Belt Replacement:
For relevant engines (e.g., 1.8L, 2.0LOHC), typically every 36,000 - 60,000 miles (60,000 - 100,000 km). Critical to follow manual recommendations.
Engine Oil Type:
API SG/SH, ACEA A2/A3, SAE 10W-40 or 15W-40 for most petrol engines. 5W-30 or 5W-40 for colder climates or improved efficiency. Consult manual for specific viscosity and API rating for each engine variant.
Engine Oil Capacity:
Approximately 4.0 - 5.0 liters (4.2 - 5.3 US quarts) for 4-cylinder engines. 5.5-6.0 liters for V6. Consult manual.
Brake Fluid Type:
DOT 3 or DOT 4. Always use fresh, sealed fluid.
Power Steering Fluid:
Ford ESW-M2C134-B or equivalent ATF (Automatic Transmission Fluid). Consult manual.
Rusting:
Common issue for vehicles of this era, particularly wheel arches, sills, and door bottoms.
Electrical Gremlins:
Wiring harness issues, faulty relays, and connector corrosion can lead to intermittent electrical problems.
Carburetor Problems:
Older carburetor systems can be prone to wear, leading to rough idling, poor fuel economy, and starting issues.
Suspension Wear:
Bushings, ball joints, and shock absorbers can wear over time, affecting handling and ride comfort.
Thermostat Failure:
Overheating can occur due to a faulty thermostat or water pump.
Ford Of Europe:
The Sierra was a key model in Ford of Europe's lineup during the 1980s and early 1990s, representing a significant technological and design advancement.
Facelift 1987:
The 1988 model year is part of the Sierra's second generation (post-1987 facelift), which introduced revised styling, including a new grille, bumpers, and interior updates. Engine options were also rationalized.
Manufacturing Locations:
Primarily produced in Germany (Cologne), Belgium (Genk), and the UK (Dagenham).
Production Years Global:
1982-1994