- a) Check for leaks and blockages between the air filter and the air duct, and between the air duct and the cylinder head. Replace faulty components if necessary. Eliminate any leaks in the connections.
2. Check the status of the systems and the absence of:
- deformation of parts;
- foreign objects in the channels;
- cracks.
3. Check the boost pressure.
- a) Warm up the engine.
- b) Install a pressure gauge in the gap of the hose connected to the intake manifold.
The publication is taken from the website: toyotaman.ru
- c) Disengage the clutch and press the accelerator pedal sharply. Measure the boost pressure at a crankshaft speed of 5100-5200 rpm. The pressure is 0.53-0.67 bar.
If the pressure is less than the specified value, check the tightness of the intake and exhaust systems. If the systems are normal, replace the turbocharger. If the pressure is greater than the specified value, check the condition of the vacuum hose of the bypass valve drive. If the hose is normal, replace the turbocharger.
4. Check the rotation of the compressor wheel.