Engine & identification
Vehicle identification
| No. of cylinders Type | 6/DOHC |
|---|---|
| Capacity (Fiscal) cc | 3956 |
| Compression ratio :1 | 10 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 95 |
| Ignition system Make | Toyota |
| Ignition system Type | TCCS |
| Ignition system Description | Map-DI |
| Trigger location | Cam/Crankshaft |
| Fuel system Make | Toyota |
| Fuel system Type | TCCS |
| Fuel system Description | MFI-s |
| Air metering Type | Mass |
| Combined ignition and fuel ECM | Yes |
| Diagnostic socket | Yes |
Ignition system
| Ignition coil supply voltage + with ballast V | 12,0 |
|---|
Firing order
The firing order for the Toyota Landcruiser Prado 4.0 (2002–2007) is 1-2-3-4-5-6.
| Firing order | 1-2-3-4-5-6 |
|---|
Valve clearances
Valve clearances for the Toyota Landcruiser Prado 4.0 (2002–2007) are 0,15-0,25 mm inlet and 0,29-0,39 mm exhaust, measured cold.
| Valve clearance - INLET mm | 0,15-0,25 cold |
|---|---|
| Valve clearance - EXHAUST mm | 0,29-0,39 cold |
Engine oil & fluids
Engine oil
The Toyota Landcruiser Prado 4.0 (2002–2007) takes 5.2 litres of engine oil with the filter.
See the reference table for the complete engine oil entries and their conditions.
Manual gearbox
The manual gearbox has a listed capacity of 2.3 litres. The specified oil is SAE 75W-90, with classification GL-4.
Transfer box
The transfer box has a listed capacity of 1.4 litres. The specified oil is SAE 75W-90, with classification GL-5.
Coolant
The total cooling-system capacity entries are 9.0 litres without a stated condition; 9.8 litres for AT.
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | -29°C➞10°C |
| Engine oil grade SAE | 5W-30 |
| Engine oil classification API/ACEA | SJ/A1, A3 |
| Ambient temperature range | -18°C➞38°C |
| Engine oil grade SAE | 10W-30 |
| Engine oil classification API/ACEA | SJ/A1, A3 |
| Ambient temperature range | -12°C➞38°C |
| Engine oil grade SAE | 15W-40 |
| Engine oil classification API/ACEA | SJ/A2 |
| Ambient temperature range | -7°C➞38°C |
| Engine oil grade SAE | 20W-50 |
| Engine oil classification API/ACEA | SJ/A2 |
| Engine with filter(s) litres | 5.2 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-90 |
| Manual transmission oil classification | GL-4 |
| Manual transmission litres | 2.3 |
| Automatic transmission fluid Type | — |
| Automatic transmission fluid type | |
| Automatic transmission (drain & refill) litres | — |
| View more information | — |
| If 'D' shift indicator flashes, switch ignition OFF. Allow ATF to cool, then repeat above procedure. | |
| Automatic transmission (dry fill) litres | — |
| Automatic transmission fluid | |
| Differential oil grade - front SAE | 75W-85 |
| Differential oil classification - front | GL-5 |
| Differential oil grade - rear | |
| Differential front/AT litres | 1.4 |
| Differential oil grade - rear SAE | 75W-85 |
| Differential oil classification - rear | GL-5 |
| Differential rear litres | — |
| Rear differential | |
| Transfer box oil grade SAE | 75W-90 |
| Transfer box oil classification | GL-5 |
| Transfer box litres | 1.4 |
| Coolant Type | Super long life |
| Coolant Colour | Pink |
| Cooling system - total capacity litres | 9,0 AT=9,8 |
| Brake fluid Type | DOT 3 |
| Power steering fluid Type | Dexron III |
| Power steering fluid litres | 1.0 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota Landcruiser Prado 4.0 (2002–2007) are replaced at a minimum thickness of 26 mm (ventilated) front and 16 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 26 mm |
|---|---|
| Minimum disc thickness for replacement Rear | 16 mm |
Brake disc and drum dimensions
| Disc runout Front | 0,05 mm |
|---|---|
| Disc runout Rear | 0,20 mm |
| Minimum pad thickness Front | 1 mm |
| Minimum pad thickness Rear | 1 mm |
| Parking brake travel No. of notches | 5-7 |
Service & electrical
Tuning and emissions
| Tuning conditions | — |
|---|---|
| View more information | — |
| Ignition timing | |
| Ignition timing - basic BTDC °Engine/rpm | 10±2/700 Not adjustable |
| Ignition advance checks °Engine/rpm | ECM Controlled |
| Idle speed rpm | 700±50 Not adjustable |
| Oil temperature °C | 80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,2 Max Not adjustable |
| HC level at idle speed ppm | 100 |
| CO2 level at idle speed Vol. % CO2 | 14,5-16 |
| O2 level at idle speed Vol. % O2 | 0,1-0,5 |
| Increased idle speed for CO test rpm | 2400-2600 |
| CO content at increased idle speed Vol. % | 0,2 |
| Lambda at increased idle λ | 0,98-1,02 |
Starting and charging
| Battery V/RC(Ah) | 12 |
|---|---|
| Alternator output A/V/rpm | 30/13/2000 |
Service checks and adjustments
| Compression pressure bar | 10,0-13,0 |
|---|---|
| Oil pressure bar/rpm | 2,9-5,9/3000 |
| Radiator cap bar | 1,20 |
| Thermostat opens °C | 82 |
Fuel system
| System pressure bar | 2,8-2,9 |
|---|---|
| Engine coolant temperature (ECT) sensor Ohm/°C | 310-326/80 |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor Ohm | 1630-2740 |
| Injector Ohm | 11,6-12,4 |
| Lambda sensor (Oxygen) heater Ohm | 5,0-10,0 |
Spark plugs
| Spark plugs Original equipment | Denso |
|---|---|
| Spark plug Type | K20HR-U11 |
| Electrode gap mm | 1,0-1,1 |
| Spark plugs Make | NGK |
| Spark plug Type | LFR6C-11 |
| Electrode gap mm | 1,0-1,1 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Toyota Landcruiser Prado 4.0 (2002–2007) are tightened in 4 stages: 18 Nm, then 36 Nm, then 90°, then a final 90°.
| Cylinder head | |
|---|---|
| Tighten | 18 Nm |
| Tighten | 36 Nm |
| Tighten | 90° |
| Tighten | 90° |
| Tighten | M8=30 Nm |
| Cylinder head instructions | — |
|---|---|
| View more information | — |
| Cylinder head | |
| View more information | — |
| Other engine tightening torques | |
| Main bearings Stage 1 | — |
| View more information | — |
| Bolts 20 and 23: Bolt length = 45 mm | |
| Big end bearings Renew bolts/nuts | — |
| View more information | — |
| Big end bearings Stage 1 | 25 Nm |
| Big end bearings Stage 2 | 90° |
| Sump bolts | 10 Nm |
| Sump bolts | |
| Sump drain bolt | 40 Nm |
| Flywheel/driveplate | 83 Nm |
| Clutch pressure plate | 19 Nm |
| Crankshaft pulley/damper centre bolt | 250 Nm |
| Camshaft sprocket/gear | 100 Nm |
| Camshaft carrier/cap | — |
| Camshaft carrier/cap | |
| Camshaft/rocker cover | 9 Nm |
| Inlet manifold to cylinder head | 28 Nm |
| Exhaust manifold to cylinder head | 30 Nm |
| Exhaust downpipe to manifold | 62 Nm |
| Water pump | 9 Nm |
| Water pump | |
| Spark plugs | 20 Nm |
| Fuel rail | 15 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 9 Nm |
| Camshaft position (CMP) sensor | 9 Nm |
| Engine coolant temperature (ECT) sensor | 20 Nm |
| Lambda sensor (Oxygen) | 44 Nm |
| Knock sensor (KS) | 20 Nm |
| Engine oil pressure switch | 15 Nm |
| Oil filter | 25 Nm |
| Chassis tightening torques | |
| Front hub | 235 Nm |
| Steering wheel | 50 Nm |
| Steering rack/box mounting | 100 Nm |
| Steering track rod end | 91 Nm |
| Brake caliper/carrier to hub Front | 123 Nm |
| Brake caliper to carrier Rear | 88 Nm |
| Brake caliper/carrier to hub Rear | 105 Nm |
| ABS sensor Front | 8 Nm |
| ABS sensor Rear | 8 Nm |
| Road wheels | 112 Nm |
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | Yes |
| Compressor variable displacement solenoid | No |
| Air conditioning refrigerant Type | R134a |
| Air conditioning refrigerant quantity grams | 600±30 |
| Refrigerant quantity | |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | Dens Oil 8 |
| Air conditioning oil quantity cm³ | — |
| Oil type | |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the firing order of the Toyota Landcruiser Prado 4.0?
The firing order for the Toyota Landcruiser Prado 4.0 (2002–2007) is 1-2-3-4-5-6.
How much oil does the Toyota Landcruiser Prado 4.0 take?
The Toyota Landcruiser Prado 4.0 (2002–2007) takes 5.2 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.
What are the valve clearances for the Toyota Landcruiser Prado 4.0?
Valve clearances for the Toyota Landcruiser Prado 4.0 (2002–2007) are 0,15-0,25 mm inlet and 0,29-0,39 mm exhaust, measured cold.
What is the cylinder head torque for the Toyota Landcruiser Prado 4.0?
The cylinder head bolts on the Toyota Landcruiser Prado 4.0 (2002–2007) are tightened in 4 stages: 18 Nm, then 36 Nm, then 90°, then a final 90°.
What is the minimum brake disc thickness for the Toyota Landcruiser Prado 4.0?
Brake discs on the Toyota Landcruiser Prado 4.0 (2002–2007) are replaced at a minimum thickness of 26 mm (ventilated) front and 16 mm rear.