🏷️ Basic Information Identification Make: Isuzu Model: TF Year: 2011 Engine Variants: 4JA1, 4JHI Body Style: Light Commercial Vehicle / Pickup Truck 👋 Introduction Market Position Target Audience: Vehicle owners, independent repair shops, DIY mechanics Value Proposition Key Benefits: Empowers users with knowledge for efficient maintenance and repair, potentially saving on labor costs and downtime. Manual Purpose: To provide in-depth understanding and procedural guidance for the Isuzu TF engines 4JA1 and 4JHI. 📋 Manual Details Coverage Manual Type: Service Workshop Repair Manual Language: English Format: PDF Compatibility: All Versions of Windows & Mac Requirements: Adobe PDF Reader 📖 Manual Coverage Systems Systems Covered: Engine Mechanical, Engine Cooling, Fuel System, Engine Electrical, Engine Control System, Exhaust System, Accelerator Control Procedures Procedures Included: Troubleshooting, Maintenance, Repair, Diagnostics Depth Technical Depth: Comprehensive (from basic troubleshooting to detailed repair procedures) Troubleshooting Troubleshooting Scope: Detailed symptom-based troubleshooting guides for common engine and system malfunctions. Includes diagnostic charts and procedures. Engine Mechanical Engine Mechanical Coverage: Engine assembly and disassembly, cylinder head, pistons, crankshaft, camshafts, timing components, lubrication system, cooling system. Fuel System Fuel System Coverage: Fuel tank, fuel lines, fuel pump, fuel filter, injectors, injection pump (diesel), throttle body (gasoline), fuel pressure regulation. Engine Electrical Engine Electrical Coverage: Starting system (starter motor), charging system (alternator), ignition system (spark plugs, coils, distributor - if applicable), wiring diagrams, sensors. Engine Control System Engine Control System Coverage: ECU operation, sensor inputs, actuator outputs, emissions control systems, diagnostic trouble codes (DTCs). Exhaust System Exhaust System Coverage: Exhaust manifolds, pipes, catalytic converter (if fitted), mufflers, mounting hardware, emissions-related components. Accelerator Control Accelerator Control Coverage: Accelerator pedal, throttle cable (mechanical) or electronic throttle control (ETC) system (if applicable). 📊 Manual Specifications File Details File Format: PDF Searchable Text: Assumed to be searchable due to PDF format, facilitating quick information retrieval. Printable: Yes, typically PDFs are printable. ⚙️ Engine Specifications Primary Engine 4Ja1 Engine Type: Inline 4-cylinder Diesel Displacement: 2.5 Liters (2500 cc) Bore X Stroke: 93.0 mm x 92.0 mm (typical for 4JA1) Compression Ratio: Approx. 21.0:1 (typical for 4JA1) Fuel System: Indirect Injection (IDI) Diesel, Rotary Injection Pump (e.g., Bosch VE type) Aspirated: Naturally Aspirated Horsepower: Approx. 79-85 PS @ 4300 rpm (varies by application) Torque: Approx. 170-180 Nm @ 2500 rpm (varies by application) Primary Engine 4Jhi Engine Type: Inline 4-cylinder Gasoline Displacement: 2.2 Liters (2200 cc) Bore X Stroke: 86.0 mm x 95.0 mm (typical for C22NE based, related to 4JHI) Compression Ratio: Approx. 9.2:1 (typical for gasoline) Fuel System: Electronic Fuel Injection (EFI) Aspirated: Naturally Aspirated Horsepower: Approx. 105-110 PS @ 5000 rpm (varies by application) Torque: Approx. 175-180 Nm @ 3200 rpm (varies by application) General Engine Cooling: Water-cooled, pressurized system with thermostat and fan. Engine Lubrication: Forced lubrication via oil pump, oil filter, and oil pan. 🔧 Transmission Available Options Standard Transmission: 5-speed Manual Transmission Optional Transmission: 4-speed Automatic Transmission (less common on base TF models, but potentially available) Features Drive Type: Rear-Wheel Drive (RWD) / 4-Wheel Drive (4WD) depending on configuration. Fluid Requirements Manual Transmission Fluid: API GL-4 75W-90 or 80W-90 gear oil (check manual for exact specification) Automatic Transmission Fluid: Dexron III / Mercon (if equipped) 📐 Dimensions General Body Style Variants: Single Cab, Extended Cab, Double Cab (common for TF generation) Wheelbase: Approx. 2,760 mm to 3,025 mm (varies by cab type and bed length) Payload Capacity: Typically 1,000 kg - 1,500 kg (varies by configuration) Towing Capacity: Up to 2,500 kg (braked, depending on market and configuration) 🛡️ Safety Features Passive Features Seat Belts: Standard front seat belts; optional side-impact protection on higher trims. Airbags: Driver airbag standard on most models; passenger airbag optional or on higher trims. Active Features Brakes: Front Disc Brakes, Rear Drum Brakes. ABS: Anti-lock Braking System (ABS) available on higher trim levels or as an option. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with CD player or single-DIN aftermarket compatible. Speaker configurations typically 2 or 4. Convenience Air Conditioning: Manual climate control system. Powertrain Control Engine Management: ECU (Engine Control Unit) for fuel injection and ignition timing on 4JHI; mechanical fuel injection pump with control cable for 4JA1. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000 - 10,000 km or 6 months for diesel, 5,000 km or 6 months for gasoline, depending on operating conditions. (Consult manual for precise intervals). Air Filter Replacement: Every 20,000 - 30,000 km or as needed, especially in dusty conditions. Fuel Filter Replacement Diesel: Typically 20,000 - 40,000 km for 4JA1 diesel engine. Fluid Specifications Engine Oil 4Ja1 Diesel: API CI-4 or CH-4 SAE 15W-40 Diesel Engine Oil (verify viscosity based on climate). Engine Oil 4Jhi Gasoline: API SL or SM SAE 10W-30 or 10W-40 Gasoline Engine Oil (verify viscosity based on climate). Coolant: Ethylene Glycol based antifreeze (50/50 mix with distilled water) with corrosion inhibitors. Typically green or...