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Posted on June 30, 2021August 14, 2025 by David Ley

Symptoms Your Cummins ISB Fuel System Is Failing

Thinking about replacing the high-pressure pump or common rail injectors on your Cummins engine? But how do you know when it’s time? What are your options?

Posted on June 21, 2021 by David Ley

Symptoms Your Mercedes Benz Fuel System Is Failing

Are you having trouble with the fuel system on your Mercedes Benz diesel engine?

Posted on June 21, 2021 by David Ley

Symptoms Your Cummins Diesel Fuel System Is Failing

If you want your Cummins engine to run at its best, you need your fuel system components to be the best.

Posted on June 18, 2021 by David Ley

Symptoms Your Mack Diesel Fuel System Is Failing

It’s vital that the fuel system on your diesel engine is functioning properly. So, when it comes time to replace some of the fuel system components on your Mack diesel engine, you want to make sure that you’re getting the best!

Posted on June 15, 2021 by David Ley

Common Symptoms Your Diesel Fuel Pump Is Failing

When your engine is down, we know you want to get it back up and running as soon as possible. Highway & Heavy Parts has you covered! We’ve got the best quality parts at the best prices to get your engine performing like it should, saving you time and money!

Posted on May 19, 2021 by David Ley

Why Is My Diesel Engine Making Noise While Under Load?

Are you experiencing unexplained noise while your diesel engine is under load?

Posted on April 24, 2021 by David Ley

Why Did My Diesel Camshaft Bearings Fail?

Camshafts are responsible for telling both your intake and exhaust valves exactly when to open and close. Camshaft bearings are responsible for keeping everything within very tight tolerances

Posted on April 21, 2021 by David Ley

Diesel Engine Cylinder Sleeve/Liner Pitting – Symptoms and Prevention

I’m sure everyone out there religiously takes oil samples at every change so you’ll know if you have a drop of coolant in your oil, right? Yeah, right!

Posted on April 16, 2021August 14, 2025 by David Ley

Cummins ISX Camshaft Wear Causes And Problems With ISX Engines

Are you hearing a sudden engine knock or is your engine running rough? These can be signs that your camshaft is failing. Replacing a camshaft can be an expensive and frustrating repair. Especially if it needs to be done outside of an engine overhaul.

Posted on April 3, 2021 by David Ley

Diesel Cylinder Liner Failure and Common Causes

Are you having trouble with the liners in your diesel engine?

Posted on March 31, 2021 by David Ley

Common VGT Turbo Problems

Has your VGT Turbo failed? Are you looking at a very expensive repair? We know how frustrating it can be when this happens, especially when you feel like you’re having the same problem over and over.

Posted on March 24, 2021 by David Ley

4 Signs You Need To Replace Your Diesel Engine Cylinder Head

WHAT IS THE FUNCTION OF A CYLINDER HEAD? Your cylinder head is a critical part of your diesel engine. Along with the head gasket, it creates the combustion chamber that allows the combustion process to occur properly.