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4-cylinder petrol engine Toyota Highlander 1 (XU20)
Four-cylinder engine specifications
General information Engine designation - 2AZ-FE Engine displacement: 2.36 l Cylinder numbering (in the direction from the drive belt to the gearbox) — 1-2-3-4 The firing order of the cylinders is 1-3-4-2 Cylinder head...
General information Engine designation - 2AZ-FE Engine displacement: 2.36 l Cylinder numbering (in the direction from the drive belt to the gearbox) — 1-2-3-4 The firing order of the cylinders is 1-3-4-2 Cylinder head...
Four-cylinder engine — general information
This section of the chapter is devoted to the repair procedures for the 2AZ-FE four-cylinder engine. Information regarding engine removal, installation and overhaul is given in part B of this chapter . The following...
This section of the chapter is devoted to the repair procedures for the 2AZ-FE four-cylinder engine. Information regarding engine removal, installation and overhaul is given in part B of this chapter . The following...
Repair operations performed without removing the engine from the vehicle
Many major repairs can be performed without removing the engine from the vehicle. Before starting work, clean the engine compartment and the outside of the engine with a suitable degreaser. This will make the job easier...
Many major repairs can be performed without removing the engine from the vehicle. Before starting work, clean the engine compartment and the outside of the engine with a suitable degreaser. This will make the job easier...
Top Dead Center (TDC) for Piston No. 1 — Definition
1. Top dead center (TDC) is the highest point in the cylinder that each piston reaches as it reciprocates in the cylinder as the crankshaft rotates. Each piston reaches TDC twice per cycle: once on the compression...
1. Top dead center (TDC) is the highest point in the cylinder that each piston reaches as it reciprocates in the cylinder as the crankshaft rotates. Each piston reaches TDC twice per cycle: once on the compression...
Cylinder Head Cover — Removal and Installation
Removal 1. Disconnect the ground cable from the battery ( see paragraph 1 chapter 5 ). 2. Remove the engine cover. 3. Disconnect the electrical connectors of the ignition coils, unscrew the nuts securing the wiring...
Removal 1. Disconnect the ground cable from the battery ( see paragraph 1 chapter 5 ). 2. Remove the engine cover. 3. Disconnect the electrical connectors of the ignition coils, unscrew the nuts securing the wiring...
Variable Valve Timing (VVT) System — Design Description and Replacement of Elements
1. The variable valve timing (VVT) system changes the angular position of the intake camshaft to change the valve timing of the intake valves in the direction of advancing or retarding their opening/closing moments by...
1. The variable valve timing (VVT) system changes the angular position of the intake camshaft to change the valve timing of the intake valves in the direction of advancing or retarding their opening/closing moments by...
Timing chain and sprockets — removal
Caution: Wait until the engine has cooled down completely before starting this procedure. Note: This procedure requires special tools. Please read the procedure carefully and have the necessary tools and equipment ready...
Caution: Wait until the engine has cooled down completely before starting this procedure. Note: This procedure requires special tools. Please read the procedure carefully and have the necessary tools and equipment ready...
Timing chain and sprockets — inspection
21. Visually inspect all components for wear and damage. Check the timing chain for loose roller axles, cracks, wear on rollers and side plates. Check the sprockets for hooked teeth, dents and broken teeth. Also check...
21. Visually inspect all components for wear and damage. Check the timing chain for loose roller axles, cracks, wear on rollers and side plates. Check the sprockets for hooked teeth, dents and broken teeth. Also check...
Timing chain and sprockets — installation
23. Remove all traces of old sealant from the timing chain cover and the mating surfaces of the cylinder block and cylinder head. 24. Position the camshafts so that the dowel pins are at the top at the 12 o'clock...
23. Remove all traces of old sealant from the timing chain cover and the mating surfaces of the cylinder block and cylinder head. 24. Position the camshafts so that the dowel pins are at the top at the 12 o'clock...
Camshafts and tappets — removal
Note: Before installing the camshafts, they should be carefully inspected, and before removing each shaft, its axial clearance should be checked (see item 13). Removal 1. Disconnect the ground cable from the battery (...
Note: Before installing the camshafts, they should be carefully inspected, and before removing each shaft, its axial clearance should be checked (see item 13). Removal 1. Disconnect the ground cable from the battery (...
Camshafts and tappets — inspection
13. Before removing the camshafts from the engine, check the end play of each shaft by fitting a dial indicator so that its plunger is aligned with the camshaft and in contact with its end (Fig. 7.13). Push the camshaft...
13. Before removing the camshafts from the engine, check the end play of each shaft by fitting a dial indicator so that its plunger is aligned with the camshaft and in contact with its end (Fig. 7.13). Push the camshaft...
Camshafts and tappets — installation
20. If the bearing shells of the No.1 intake camshaft have been removed or replaced, now install them into the cylinder head and bearing cap. Apply molybdenum grease to the camshaft lobes and journals and install the...
20. If the bearing shells of the No.1 intake camshaft have been removed or replaced, now install them into the cylinder head and bearing cap. Apply molybdenum grease to the camshaft lobes and journals and install the...
Intake manifold — removal and installation
Caution: Wait until the engine has cooled down completely before starting this procedure. Removal 1. Relieve the pressure in the fuel system ( see chapter 4 ). Disconnect the ground wire from the batteries ( see...
Caution: Wait until the engine has cooled down completely before starting this procedure. Removal 1. Relieve the pressure in the fuel system ( see chapter 4 ). Disconnect the ground wire from the batteries ( see...
Exhaust manifold assembly with catalytic converter — removal and installation
Caution: Wait until the engine has cooled down completely before starting this procedure. Removal 1. Disconnect the ground wire from the batteries ( see paragraph 1 of chapter 5 ). 2. Raise the front of the vehicle and...
Caution: Wait until the engine has cooled down completely before starting this procedure. Removal 1. Disconnect the ground wire from the batteries ( see paragraph 1 of chapter 5 ). 2. Raise the front of the vehicle and...
Cylinder head — removal and installation
Caution: Wait until the engine has cooled down completely before starting this procedure. Removal 1. Relieve the pressure in the fuel system ( see chapter 4 ), then disconnect the ground cable from the battery ( see...
Caution: Wait until the engine has cooled down completely before starting this procedure. Removal 1. Relieve the pressure in the fuel system ( see chapter 4 ), then disconnect the ground cable from the battery ( see...
Crankshaft Pulley/Damper — Removal and Installation
1. Disconnect the ground cable from the battery ( see paragraph 1 of chapter 5 ). 2. Remove the drive belt ( see chapter 1 ). Unscrew the bolts, remove the bracket from the engine thrust ( see paragraph 17 ). 3. Apply...
1. Disconnect the ground cable from the battery ( see paragraph 1 of chapter 5 ). 2. Remove the drive belt ( see chapter 1 ). Unscrew the bolts, remove the bracket from the engine thrust ( see paragraph 17 ). 3. Apply...
Front Crankshaft Oil Seal — Replacement
1. Remove the pulley from the crankshaft ( see paragraph 11 ). 2. Pay attention to how the cuff is installed. The new one should be installed at the same depth and with the same side facing out. Carefully pry and remove...
1. Remove the pulley from the crankshaft ( see paragraph 11 ). 2. Pay attention to how the cuff is installed. The new one should be installed at the same depth and with the same side facing out. Carefully pry and remove...
Oil pan — removal and installation
Removal 1. Disconnect the ground cable from the battery ( see paragraph 1 of chapter 5 ). 2. Apply the parking brake and place wheel chocks under the rear wheels. 3. Raise the front of the vehicle and place secure...
Removal 1. Disconnect the ground cable from the battery ( see paragraph 1 of chapter 5 ). 2. Apply the parking brake and place wheel chocks under the rear wheels. 3. Raise the front of the vehicle and place secure...
Oil pump — removal and installation
Removal 1. Contact paragraphs 1-18 of section 6 and remove the timing chain and crankshaft sprocket. 2. Remove the chain and sprockets of the oil pump drive: turn the engine 90° (¼ turn) counterclockwise (from TDC...
Removal 1. Contact paragraphs 1-18 of section 6 and remove the timing chain and crankshaft sprocket. 2. Remove the chain and sprockets of the oil pump drive: turn the engine 90° (¼ turn) counterclockwise (from TDC...
Faceplate — removal and installation
Removal 1. Disconnect the ground cable from the battery ( see paragraph 1 of chapter 5 ). 2. Remove the gearbox in the block with the drive axle ( see chapter 7 ). 3. Using a center punch or paint, make alignment marks...
Removal 1. Disconnect the ground cable from the battery ( see paragraph 1 of chapter 5 ). 2. Remove the gearbox in the block with the drive axle ( see chapter 7 ). 3. Using a center punch or paint, make alignment marks...
Rear Main Seal — Replacement
1. Remove the gearbox in the block with the drive axle ( see chapter 7 ). 2. Remove the faceplate ( see paragraph 15 ). 3. Remove the oil seal from the rear of the engine using a suitable puller or screwdriver. Be...
1. Remove the gearbox in the block with the drive axle ( see chapter 7 ). 2. Remove the faceplate ( see paragraph 15 ). 3. Remove the oil seal from the rear of the engine using a suitable puller or screwdriver. Be...
Powertrain Mounts — Checking and Replacing
1. Powertrain mounts rarely require attention, but broken, damaged or worn mounts should be replaced immediately as this can place additional stress on engine and transmission components and cause damage or wear....
1. Powertrain mounts rarely require attention, but broken, damaged or worn mounts should be replaced immediately as this can place additional stress on engine and transmission components and cause damage or wear....
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- General information
- Introduction to the guide
- Troubleshooting
- Maintenance
- Power unit
- 4-cylinder engine
- 6-cylinder engine
- Overhaul of engines
- Cooling and heating
- Supply and exhaust system
- Engine electrical equipment
- Control system
- Transmission
- Automatic gearbox
- Drive shafts and cardan
- Chassis, running gear
- Brake system
- Car suspension
- Steering
- Body and interior
- Exterior (external elements)
- Interior (internal elements)
- Doors, locks and windows
- Electrical equipment
- Equipment and devices
- Electrical circuits