Cause
|
Correction
|
Note: Some whine noise is
normal. Compare to a known good vehicle.
|
Leaking charge air cooler/pipes/hoses
|
Inspect for leaks in charge air cooler/pipes/hoses.
|
Worn turbocharger bearings
|
Visually inspect for evidence of compressor wheel to housing
contact.
If the turbocharger bearings are worn or damaged, inspect for a
Turbocharger Lack of Oil Supply .
|
Intake system leaks or obstructions
|
|
1. |
With the engine off, pressurize the intake system
and inspect for intake manifold leaks. |
|
2. |
Inspect for obstructions in the intake
manifolds. |
|
