Caterpillar C15 ACERT Diesel Engine Camshaft Problems

Is the camshaft in your CAT C15 ACERT diesel engine performing correctly? It's essential that this component operates properly for your engine to function as it should. Each part of the camshaft must perform their functions at precise timing in relation to the motion of the piston. If they don't, it could spell disaster for your diesel engine. 

If your cam fails, it will likely have a noticeable impact on the function of your engine. But you might still be questioning if the engine problems are caused by your camshaft or a different failure. We've put together a list of symptoms to help you identify when the camshaft of your C15 ACERT has failed.

You can also watch our video to learn more:



Do you need a new diesel engine camshaft? We have ASE Certified Techs on staff to help you get the right cam for your engine!

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Not running an ACERT? Be sure to read our article on camshaft issues in the Caterpillar C15.


Symptoms of Camshaft Failure in C15 ACERT


cat c15 acert camshaft failure symptoms | Highway & Heavy Parts


So what exactly should you be looking for if your camshaft has failed? We're breaking it down for you.

Symptoms of camshaft failure in the C15 ACERT include:

  • Decrease in Driving Performance
  • Check Engine Light
  • Vehicle Won't Start

Does this sound like something that's happening in your engine? Then you just might need a replacement camshaft for your C15 ACERT.

Not sure if you're ready to replace your camshaft? Take a look at our article, Camshafts, Replace or Not to Replace?, to find out if you should be looking for a new cam. 


Causes of a Failed CAT C15 ACERT Camshaft

If your camshaft has failed, you're likely wondering what caused the failure in the first place. There are several things that could cause problems for your cam.


cat c15 acert camshaft failure pitting on lobes | Highway & Heavy Parts


Pitting, for example, can affect the operation of your camshaft. This can be normal wear on the lobes just from hours of operation. It could also be the result of loose debris from a past engine failure. That's why it's important to ensure that everything is clean on install, including the oil passageways. Dirt and debris left in the engine can cause damage to both the camshaft and cam bearings. 


cat c15 acert camshaft failure lack of lubrication | Highway & Heavy Parts


Your cam failure might also be caused by a lack of lubrication. This is often the result of blocked passages. If this occurs, you'll likely begin to notice wear patterns. The high heat and friction caused by this problem can ruin bearings or even break the cam cap. 

It's also possible to have an improperly functioning lifter gouge the lobes. The lifter could be malfunctioning for a number of reasons, including being out of position, weak valve spring pressure, lack of oil pressure, or stressful operating conditions like over speeding. 

Want to know more about what causes cam damage? Check out our camshaft failure analysis for a deeper look at this problem. 


Replacing Your C15 ACERT Camshaft

Highway & Heavy Parts offers a variety of camshafts for the Caterpillar C15 ACERT. If your cam has failed, we can help you get back up and running. Having your ESN handy can help ensure you're getting the exact camshaft for your engine. 

Ready for a new camshaft for your C15 ACERT? Be sure to read our camshaft install guide for tips to ensure your new cam is properly installed.


In the market for a new camshaft or any other diesel engine replacement parts? Call our ASE Certified Techs at 844-304-7688, or request a quote online!

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