Turbocharger system diagnostics guide

TURBOCHARGER SYSTEM CHECK
Connections

In addition to the verifications performed during preliminary inspection, look at tightening, alignment and integrity of all linked components, such as thermal shields, attachments for cable ducts, sensors, caches and engine protections, including wheel arches

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

Connections

Leak at Turbocharger connection

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

COMPONENTS

Check the absence of leaks, tears, holes, cracks or porosities of air inlet circuit components.

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

COMPONENTS

Damaged boost pipe

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

COMPONENTS

Damaged exhaust pipe

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

COMPONENTS

Drive belt loose or worn out causing high pitch noise varying with engine speed
Note: Refer OEM service manual for further details

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

COMPONENTS

EGR valve wear causing clicling noise
Note: Refer OEM service manual for further details

Action: Repair linked components as necessary, turbocharger need not be replaced unless damaged due to consequence.
If issue is not resolved continue analysis.

DAMAGE

Wheels damage and rubbing on housing volutes

Action: If damaged, the turbo charger must be replaced.
If issue is not resolved continue analysis.

DAMAGE

Check free rotation of rotating group

Action: If damaged, the turbo charger must be replaced.
If issue is not resolved continue analysis.

Look for other source of Performance - Contact the respective regional OEM Service Engineer.

Connections
COMPONENTS
DAMAGE