Author

Niles Nimmo

Niles Nimmo has worked on turbochargers for 19 years and is the name behind PT Turbo's guides. PT Turbo has rebuilt and supplied turbochargers in San Bernardino, California since 1978, for diesel pickups, heavy-duty trucks, industrial equipment and performance gas engines. Every rebuild is balanced in-house on a high-speed VSR machine and carries a 12-month, unlimited-mileage warranty. Have a question about a guide or a turbo? Call the shop at (909) 824-1020.

Boost Leak Test: How to Find and Fix Boost Leaks on Diesel Trucks
Diesel Diagnostics

Boost Leak Test: How to Find and Fix Boost Leaks on Diesel Trucks

A Boost Leak Test is the fastest way to find where your diesel engine is losing pressurized air before it ever reaches the cylinders, and skipping…

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Diesel Engine Low Power: Is It the Turbocharger? Complete Diagnosis Guide
Diesel Diagnostics

Diesel Engine Low Power: Is It the Turbocharger? Complete Diagnosis Guide

Diesel engine low power is one of the most common complaints that rolls into our shop, and the turbocharger is often blamed first, sometimes wrongly. After…

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Turbo Surge vs Compressor Surge: What It Is and How to Fix It
Diesel Diagnostics

Turbo Surge vs Compressor Surge: What It Is and How to Fix It

Understanding Turbo Surge vs Compressor Surge is one of the most common points of confusion we hear at PT Turbo, and getting it wrong can cost…

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Turbo Whine vs Normal Turbo Noise: How to Tell if Your Turbocharger Is Failing
Diesel Diagnostics

Turbo Whine vs Normal Turbo Noise: How to Tell if Your Turbocharger Is Failing

Understanding Turbo Whine vs Normal Turbo Noise is one of the most valuable diagnostic skills a diesel owner or mechanic can have, because the difference between…

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Blue Smoke from Diesel Engine: Turbocharger Oil Seal Failure Diagnosis
Diesel Diagnostics

Blue Smoke from Diesel Engine: Turbocharger Oil Seal Failure Diagnosis

Blue Smoke from Diesel Engine exhaust is one of the clearest warning signs that oil is getting where it shouldn’t, and on a turbocharged diesel the…

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P003A Turbocharger Boost Control Code: Diagnosis Guide for Cummins & Duramax
Diesel Diagnostics

P003A Turbocharger Boost Control Code: Diagnosis Guide for Cummins & Duramax

The P003A Turbocharger VGT Actuator Code is one of the most common diagnostic trouble codes we see roll through the shop on late-model Cummins and Duramax…

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P0046 Turbocharger Boost Control Circuit Range/Performance: What It Means & How to Fix It
Diesel Diagnostics

P0046 Turbocharger Boost Control Circuit Range/Performance: What It Means & How to Fix It

If your diagnostic scanner just pulled a P0046 Turbocharger Boost Control Circuit Range/Performance code, the ECM has found a problem in the circuit it uses to…

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P0234 Turbocharger Overboost Code: Causes, Diagnosis & Fix
Diesel Diagnostics

P0234 Turbocharger Overboost Code: Causes, Diagnosis & Fix

The P0234 Turbocharger Overboost Code is your engine control module telling you the turbo is producing more boost pressure than the system is programmed to allow.…

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P0299 Turbocharger Underboost Code: Complete Diagnosis Guide for Diesel Trucks
Diesel Diagnostics

P0299 Turbocharger Underboost Code: Complete Diagnosis Guide for Diesel Trucks

The P0299 Turbocharger Underboost Code is one of the most common and most misunderstood fault codes we see roll through the shop, and if you drive…

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BorgWarner Schwitzer Turbocharger Guide: S-Series, K-Series & KKK Reference
Turbocharger Tech Explained

BorgWarner Schwitzer Turbocharger Guide: S-Series, K-Series & KKK Reference

This BorgWarner Schwitzer Turbocharger Guide exists because decades of mergers, rebrands, and cross-referenced part numbers have left even seasoned mechanics guessing which turbo actually bolts to…

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Garrett Turbocharger Complete Guide: GT, GTB, GTX & G-Series Reference
Turbocharger Tech Explained

Garrett Turbocharger Complete Guide: GT, GTB, GTX & G-Series Reference

This Garrett Turbocharger Complete Guide breaks down every major product family Garrett has built for diesel and performance applications, from the workhorse GT series to the…

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Holset Turbocharger Complete Model Guide: Every Series from HX to HE Explained
Turbocharger Tech Explained

Holset Turbocharger Complete Model Guide: Every Series from HX to HE Explained

Welcome to the Holset Turbocharger Complete Model Guide, the reference PT Turbo built from more than 45 years of turning wrenches on diesel turbos. Holset (the…

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