S052 TURBOCHARGER UNIT NOISY - Fiat - GRANDE PUNTO - eLearn

199004918 - S052 TURBOCHARGER UNIT NOISY

The customer reports a noise that increases in frequency as the engine speed increases.

1	CHECKING THE TURBOCOMPRESSOR UNIT LUBRICATION CIRCUIT	All OK	Problems encountered	Operation
		Test results
	Check that there are no leaks on the turbine lubrication circuit and that the oil pipes are not damaged.	Move on to Step 2	Leaks on the turbine lubrication circuit.	Restore the correct seal for the lubrication circuit.
		Move on to Step 2	Damaged oil pipes	Replace the oil pipes
2	CHECKING THE TURBOCOMPRESSOR UNIT COOLING CIRCUIT	All OK	Problems encountered	Operation
	Check that there are no leaks on the turbine cooling circuit and that the water pipes are not damaged.	Move on to Step 3	Leaks on the turbine cooling circuit.	Restore the correct seal for the cooling circuit.
		Move on to Step 3	Damaged water pipes	Replace the cooling water pipes
3	CHECKING THE AIR PRESSURE CIRCUIT	All OK	Problems encountered	Operation
	Check the seal of the pressurised hoses on the air circuit and on the intercooler.Check that there is no damage/lacerations to the air pressure circuit pipes.	Move on to Step 4	Sleeves seal is incorrect	Restore the correct seal.
		Move on to Step 4	Damage/lacerations to the pipes.	Replace damaged/lacerated elements
4	CHECKING THE SUPERCHARGING PRESSURE CONTROL SOLENOID (PIERBURG) PIPES	All OK	Problems encountered	Operation
	Check that the turbocharging solenoid pipes are correctly positioned and have the correct seal following the See Test 1064BB SUPERCHARGING PRESSURE SOLENOID (PIERBURG) VALVE OPERATION CHECK	Move on to Step 5	Solenoid pipes are incorrectly positioned	Restore the pipes to the correct position.
		Move on to Step 5	Pipes seal incorrect/lacerated/damaged	Restore the correct seal/replace damaged pipes.
5	TURBOCHARGING PRESSURE CHECK	All OK	Problems encountered	Operation
	Check the the turbocharging pressure is correct following the See Test	Move on to Step 6	Turbocharging pressure correct	Replace turbocharging pressure sensor Op. 1056B44 AIR PRESSURE SENSOR - R.R.
6	CHECKING THE WASTEGATE VALVE OPERATION	All OK	Problems encountered	Operation
	Check that the Wastegate valve is operating correctly following theOp.	End of diagnosis	Wastegate valve operating incorrectly.	Replace the turbocharger unit Op. 1064A27 TURBOCHARGER UNIT AND EXHAUST MANIFOLD - R.R.