Turbocharger Diagnosis

LACK OF POWER/EXCESSIVE FUEL CONSUMPTION

1. Low boost pressure or no boost.
a. Turbocharger bearing failure.
b. Restricted air intake system.
c. Restricted exhaust system or catalytic converter.
d. Exhaust manifold leak.
e. Wastegate stuck in the open position.

EXCESSIVE OR ABNORMAL NOISE
1. Loose heat insulator around turbo and/or exhaust manifold.
2. Exhaust manifold leak.
3. Turbocharger bearing failure.

EXCESSIVE SMOKE OR WHITE SMOKE FROM EXHAUST PIPE
1. Turbocharger bearing &/or seal failure (allowing lubricating oil into either the turbine or compressor housings).