PT Turbo

Niles Nimmo

Installed GT3788VA turbo at the rear of a Silverado HD LBZ Duramax engine during boost-loss diagnosis

Boost Pressure Drops at Highway Speed: Diagnosing Intermittent Turbo Problems

When Boost Pressure Drops at Highway Speed, you are dealing with one of the most frustrating diagnostic challenges in diesel repair: an intermittent fault that hides at idle and low load, then shows up exactly when the engine is working hardest. The truck pulls fine off the line, cruises clean around town, then loses power

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Turbo shaft and journal bearing showing abrasive scoring beside carbon deposits and contaminated oil residue

Contaminated Engine Oil and Turbocharger Failure: Identifying the Pattern

Contaminated Engine Oil and Turbocharger Failure go hand in hand more often than most operators realize, and the damage almost always traces back to something that could have been caught during a routine service. A turbocharger spins at speeds north of 100,000 RPM, and the only thing keeping those bearings alive is a thin, clean

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HE351CW turbo and oil feed line installed beside the exhaust manifold on a Dodge Ram 5.9L Cummins

Hot Shutdown Turbocharger Damage: Why It Happens and How to Identify It

Hot Shutdown Turbocharger Damage is one of the most common, and most preventable, causes of premature turbo failure we see come across the bench at PT Turbo. It happens when a diesel engine is shut off immediately after hard work, before the turbocharger has a chance to cool down. The result is oil that literally

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Intercooler Failure Symptoms: How a Bad Intercooler Damages Your Turbocharger

Recognizing Intercooler Failure Symptoms early is one of the cheapest ways to protect an expensive turbocharger, because a compromised intercooler quietly starves your engine of dense, cool air and forces the turbo to work harder than it was ever designed to. On a diesel, that added strain doesn’t stay contained. It cascades into overheating, oil

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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 toast, and a bad turbo doesn’t always throw black smoke. Knowing the difference saves you from replacing a $600 turbo when the real culprit is a $40 sensor or

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

White Smoke from Diesel Engine is one of the most misdiagnosed problems we see at PT Turbo, and after 45+ years of rebuilding turbos and troubleshooting failures, we can tell you the fix is almost never what people first assume. Owner-operators point at the turbo. Fleet mechanics blame the head gasket. The parts counter sells

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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 the repair bill triples. On the surface it looks like a simple emissions fault. Underneath, it points to a chain of problems that puts real stress on your turbine

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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 the wrong part costs owner-operators real money and downtime. P0101 is a MAF sensor performance code, but on a turbocharged diesel or gas engine, the sensor rarely fails in

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