PT Turbo Guides

Diesel Diagnostics

Diagnosing turbocharger and diesel engine problems: smoke, codes, shaft play, boost leaks.

Black Smoke and Turbocharger Failure: How to Tell If the Turbo Is the Cause
Diesel Diagnostics

Black Smoke and Turbocharger Failure: How to Tell If the Turbo Is the Cause

Black Smoke and Turbocharger Failure often get blamed on each other, but the truth is more complicated: a smoking diesel doesn’t automatically mean your turbo is…

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White Smoke from Diesel Engine: Is It the Turbocharger, Head Gasket or Injector?
Diesel Diagnostics

White Smoke from Diesel Engine: Is It the Turbocharger, Head Gasket or Injector?

White smoke from a diesel engine is one of the most misdiagnosed problems we see at PT Turbo, and after 45+ years of rebuilding turbos and…

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P0401 EGR Insufficient Flow: How It Leads to Turbocharger Damage if Ignored
Diesel Diagnostics

P0401 EGR Insufficient Flow: How It Leads to Turbocharger Damage if Ignored

A P0401 EGR Insufficient Flow code is one of those trouble codes that too many operators clear and forget, right up until the turbocharger fails and…

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P0101 Mass Air Flow Sensor Code and Turbocharger: Understanding the Connection
Diesel Diagnostics

P0101 Mass Air Flow Sensor Code and Turbocharger: Understanding the Connection

The P0101 Mass Air Flow Sensor Code and Turbocharger relationship is one of the most misunderstood diagnostic situations we see come through the shop, and chasing…

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P2564 Turbocharger Boost Control Position Sensor Low: Diagnosis & Replacement
Diesel Diagnostics

P2564 Turbocharger Boost Control Position Sensor Low: Diagnosis & Replacement

The P2564 Turbocharger Boost Control Position Sensor Low code sets when your ECM detects a voltage signal from the turbo boost control position sensor that falls…

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P2263 Turbo Boost System Performance Code: Full Diagnosis for Diesel Engines
Diesel Diagnostics

P2263 Turbo Boost System Performance Code: Full Diagnosis for Diesel Engines

The P2263 Turbo Boost System Performance Code is one of the more frustrating diagnostic trouble codes a diesel tech can face because it points to a…

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P0243 Turbocharger Wastegate Solenoid A Malfunction: Causes & Repair Guide
Diesel Diagnostics

P0243 Turbocharger Wastegate Solenoid A Malfunction: Causes & Repair Guide

The P0243 Turbocharger Wastegate Solenoid A Malfunction code is one of the most misdiagnosed boost-control faults we see come through our shop, and too often the…

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P0045 Turbocharger Boost Control Solenoid Circuit Open: Diagnosis & Fix
Diesel Diagnostics

P0045 Turbocharger Boost Control Solenoid Circuit Open: Diagnosis & Fix

The P0045 Turbocharger Boost Control Solenoid Circuit Open code is one of the most common boost-related faults we see come through the shop, and it trips…

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How to Pressure Test Your Intercooler and Find Boost Leaks
Diesel Diagnostics

How to Pressure Test Your Intercooler and Find Boost Leaks

A boost leak can mimic turbocharger failure and cause the same codes and symptoms. Before replacing your turbo, spend 20 minutes pressure testing the charge piping.

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Turbocharger Seized: Causes, What to Check First & Repair vs Replace Decision
Diesel Diagnostics

Turbocharger Seized: Causes, What to Check First & Repair vs Replace Decision

A Turbocharger Seized condition is one of the most abrupt failures you can face on a diesel engine, and it almost never happens without warning signs…

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VGT Vanes Stuck Open or Closed: Symptoms, Cleaning & Replacement Guide
Diesel Diagnostics

VGT Vanes Stuck Open or Closed: Symptoms, Cleaning & Replacement Guide

Diagnosing VGT Vanes Stuck Open or Closed is one of the most common jobs we handle at PT Turbo, and it trips up even experienced diesel…

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Crankcase Pressure and Turbocharger Failure: The Connection Diesel Owners Miss
Diesel Diagnostics

Crankcase Pressure and Turbocharger Failure: The Connection Diesel Owners Miss

Crankcase pressure and turbocharger failure is one of the most misdiagnosed relationships in the diesel world, and it costs owners thousands of dollars in repeat turbo…

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