Troubleshooting

Turbo Axial Play (In-and-Out Play): Causes, Diagnosis & Fix

Turbo Axial Play (In-and-Out Play): Causes, Dia...

What Is Turbo Axial Play and Why Does It Cause Failure? Extreme axial (in-and-out) play occurs when the turbo rotor assembly is forcibly displaced toward the compressor inlet, causing the...

Turbo Axial Play (In-and-Out Play): Causes, Dia...

What Is Turbo Axial Play and Why Does It Cause Failure? Extreme axial (in-and-out) play occurs when the turbo rotor assembly is forcibly displaced toward the compressor inlet, causing the...

Losing Boost

Losing Boost

Step 1: Check for Boost Leaks A boost leak is the most frequent cause of lower-than-expected boost. This happens when pressurized air escapes from the intake tract after the turbo...

Losing Boost

Step 1: Check for Boost Leaks A boost leak is the most frequent cause of lower-than-expected boost. This happens when pressurized air escapes from the intake tract after the turbo...

Diagram showing turbo overboost causes including wastegate malfunction and ECU issues

Over Boost

Overboost occurs when a turbocharger produces more boost pressure than the engine is rated to handle — typically above the factory wastegate spring rating. Unlike a manufacturer-designed momentary overboost feature,...

Over Boost

Overboost occurs when a turbocharger produces more boost pressure than the engine is rated to handle — typically above the factory wastegate spring rating. Unlike a manufacturer-designed momentary overboost feature,...

Diagnosing a Seized Turbo: A Deep Dive into the Causes

Diagnosing a Seized Turbo: A Deep Dive into the...

The main culprit appears to be a complete bearing system failure, likely caused by an oiling issue. Here’s what I saw that points to this conclusion: Seized Wheels (0:01 &...

Diagnosing a Seized Turbo: A Deep Dive into the...

The main culprit appears to be a complete bearing system failure, likely caused by an oiling issue. Here’s what I saw that points to this conclusion: Seized Wheels (0:01 &...

Collapsed turbo intake hose between air filter and turbocharger inlet showing vacuum deformation

Turbo Intake Hose Collapsing: Causes & Fixes

A turbo intake or charge hose that collapses under throttle means either a severely restricted air supply (intake side) or a seized turbocharger (charge side). Do not continue driving until...

Turbo Intake Hose Collapsing: Causes & Fixes

A turbo intake or charge hose that collapses under throttle means either a severely restricted air supply (intake side) or a seized turbocharger (charge side). Do not continue driving until...

Diagnosing a Leaking Turbo Seal: A Guide to Oil Coking, Sludging, and Prevention

Diagnosing a Leaking Turbo Seal: A Guide to Oil...

Regarding the carbon on the shaft that you observed, it is indeed highly likely that the rear shaft seal was leaking. When the rear seal leaks, it allows hot exhaust...

Diagnosing a Leaking Turbo Seal: A Guide to Oil...

Regarding the carbon on the shaft that you observed, it is indeed highly likely that the rear shaft seal was leaking. When the rear seal leaks, it allows hot exhaust...