3 Common Cummins ISM Problems (Troubleshooting)

cummins ism problems
cummins ism problems

The engine in your vehicle is one of the most important parts that you need to look out for. The performance of your motorhome, as well as its mileage, depends on this equipment.

Additionally, having a good engine will ensure that you do not have to worry about how much weight is being put on your vehicle. However, it is also essential that you keep the device maintained at all times.

The process for this is quite simple though users still forget to do so. When it comes to some of the most popular engines that you can purchase. The Cummins ISM is one of the best choices, however, there are some problems with this model as well.

Considering this, we will be using this article to provide you with few common issues that can be found on this engine as well as fixes for it that can be used.

Cummins ISM Problems

  1. Engine Making Noise

One of the most common issues that people report is that their engine starts to make weird noises. Usually, these are identified as knocking sounds and can be heard when you drive above a certain speed limit. T

alking about this, if you are hearing these sounds coming from your engine then there is most likely an issue with the oil you are using. If you are someone who keeps your vehicle maintained then you should already know how this can be fixed.

However, for people who are unaware, the engine oil in your vehicle has to be replaced after a certain mileage. While in most vehicles, the user does not have to drive around a lot. But considering you are using the ISM engine; the user most likely owns a large vehicle. Having a motorhome usually means that you will be driving around a lot for your trips.

Considering this, the engine oil in your vehicle can start to thicken up and get dirty quite a few miles before it has hit the mileage threshold. This is why you should make a habit of checking the condition of your oil while you are on your trip. As for how you can fix this issue, the user can simply replace their engine oil with a new one.

However, you should keep in mind that this has to be done as soon as possible. Driving around your vehicle in this condition will most likely damage it and can even destroy the engine. Additionally, the quality of engine oil that you select is also essential as this directly affects the life of your engine.

  1. Dropped Valve

Another issue that can be found on the Cummins ISM lineup is dropped valves. If you are confused about what this means then you should note that dropped valves refer to the valves in your engine getting damaged. While there are numerous reasons why the valves in your vehicle can get damaged. There are some things that you can note down which are most likely to damage them.

If you had been doing any of these then your valves are most likely faulty. Driving too fast, backfire, or adjusting your valves in the wrong position can all damage it. However, in some cases, the device might get damaged due to the rotators in your vehicle being weak.

Whatever the case might be, if the valves in your engine have gotten damaged then the only way to fix your issue is by replacing the product. It is recommended that you take your vehicle to a workshop to get your engine checked. This is because checking how many valves have been damaged required you to completely open the device.

  1. Engine Not Working

While some of the common reasons why your engine can stop working are issues with the camshaft, crankshaft, or pistons.

Trying to identify which of these is causing the issue can be quite difficult. If you are someone who understands how these parts work then you should be able to pin down the exact part.

However, most users are not familiar with this which is why they can contact Cummins directly. The company has a warranty service that you can claim if your engine is under the requirements for this service. However, even if it is not then the company should still be able to help you with your issue.

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