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How to Replace a 7.3L Powerstroke HPOP (High-Pressure Oil Pump)

The 7.3L Powerstroke uses a HEUI (Hydraulically Actuated Electronic Unit Injection) system, where engine oil – not fuel – provides the pressure required to actuate the fuel injectors.

The High-Pressure Oil Pump (HPOP) supplies this pressure.

If the HPOP fails or leaks, you may experience:

  • Hard starting (especially hot)
  • Rough idle
  • Low power
  • Injector misfires
  • Low ICP pressure

Replacing the HPOP requires accessing the engine valley and removing several components to reach the pump and drive gear.

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Overview Of The Detroit Diesel Series 60 14L Engine

You probably recognize the name: Detroit Diesel. Or, Detroit as it’s known now. They’ve built some of the most popular diesel engines.

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Bosch High Pressure Diesel Oil Pump Overview

When we talk about oil pumps, most people think of the component in the oil pan that supplies oil to the bearings and the crankshaft. But, with a high pressure system, you actually have two oil pumps on your engine.

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Detroit Diesel ECUs Explained – What Do Different DDEC Versions Do?

Have you ever put much thought into what’s controlling your engine? It may run on diesel, but it’s probably controlled by electronics. Unless you’re running a much older engine, of course.

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Why Is My Diesel EGR Valve Failing? 5 Common Causes

An EGR or exhaust gas recirculating valve is a key part of any modern diesel engine. Unfortunately, they have gotten a bad reputation over the years as being one of the most common parts to fail on an otherwise durable engine.

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Differences Between Diesel Rebuild Kits

No matter how you look at it, rebuilding your diesel engine is a big job. It can even seem downright stressful trying to pick the right rebuild kit. In-frame, out-of-frame, and engine re-ring kits are just some of the terms used. What do they mean? What are the differences between them? All these questions and many more will be answered in this post!

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Common Diesel Turbocharger Problems

Modern diesel engines all have turbochargers. Boosting your internal combustion engine’s potential both physically and figuratively is nothing new. Diesel engines have been taking advantage of wasted exhaust gas for decades.

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