Where Is The Oil Pressure Sensor In A Cummins Isx?

If you need to replace the oil pressure sensor, you'll need to find it first. If you don't know where to find it in a Cummins ISX, we've got you covered. We have done the research on this topic, and here's what we gathered.

Cummins ISX oil pressure sensor is located behind the diesel fuel filter and electronic control module. Its exterior is black and has a red clip that sticks into it.

In this post, we will discuss the location of your oil pressure sensor, how much oil pressure should your Cummins ISX have, and how you will know if your oil pressure sensor is in poor condition. Continue reading to find out more.

truck highway sunset transportation background beautiful, Where Is The Oil Pressure Sensor In A Cummins Isx?

Where Is The Oil Pressure Sensor On A Cummins ISX Located?

The oil pressure sensor is used since it is impossible to determine how much oil is being put into an engine.

The oil pressure sensor in your Cummins ISX is situated on the engine's driver. You won't be able to see it if you view it from the outside. If you look closely, it is behind the diesel fuel filter and your electronic control module.

car engine bay diesel oil pressure sensor

Click here to see this oil pressure sensor for Cummins ISX on Amazon.

How Much Oil Pressure Does A Cummins ISX Produce?

Engine oil passes through numerous components and needs pressure to move. Normal oil pressure allows sufficient flow of oil through the engine to adequately lubricate the moving parts.

Oil pressure values depend upon the model of an engine and the speed it travels. It usually ranges from 25 to 65 psi. For a Cummins ISX15, the oil pressure is typically 42 psi at a speed of 65 mph.

It can be a sign of issues if your oil pressure is too high or too low. Low oil pressure prevents the oil from getting to the engine. Thus, it cannot lubricate the engine enough to function correctly. Remember that a lack of lubricant can cause metal-to-metal contact and machine failure.

On the other hand, having high oil pressure cannot also create issues that may result in engine failure. 

How Do I Know If My Oil Pressure Sensor Is Bad?

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Your oil pressure goes bad and needs replacement if it is already leaking. You can check if the plug, connector, and harness are all wet with oil.

The oil transmitting unit is attached to an oil pressure sensor, which, if it's broken, can cause leaks.

Oil leaks are more likely to occur as oil pressure sensors get older. Oil pressure sensors typically deteriorate over time. Your oil pressure sensor may also be leaking oil because it has clogged and is no longer able to function correctly due to the obstruction.

Do You Have To Drain The Oil To Change The Oil Pressure Sensor?

There is no need for you to drain the oil to change your oil pressure sensor. You may directly remove it and replace it with a new one.

How To Replace The Oil Pressure Sensor Of My Cummins ISX?

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Oil is what makes the engine function properly. You need to replace your oil pressure sensor if there is leaking oil as soon as possible to avoid major engine issues.

These are the quick steps to replace your faulty oil pressure sensor:

1. Gather Materials

You may need a 1/16 deep socket, a universal wobbly joint, and a 3/8 adapter ratchet.

Click here to see this 3/8 adapter ratchet on Amazon.

2. Remove the Sensor

The oil pressure sensor contains a red clip that holds it in place, which you need to unlock first before removing the sensor. Slide the red clip sideways to unfasten it.

Insert your 1/16 deep socket into the oil pressure sensor. When putting a socket, be careful not to damage it. 

Click here to see this 1/16 deep ratchet on Amazon.

Attach your adapter ratchet to your deep socket. Then, link the universal wobble joint to the adapter ratchet. Loosen it all up slowly.

Click here to see this universal joint on Amazon.

After you loosen up the sensor, disconnect it from its connector.

3. Clean the Connector

Use an electronic cleaner to remove any oil leaks from the connector. Wipe it out using a cloth.

Click here to see this CRC electronic cleaner on Amazon.

4. Attach the New Oil Pressure Sensor

Put the oil pressure sensor together with its extension. Attach the ratchet at the end of the extension. Slowly tighten and put only a little pressure so you will not break the sensor.

It contains a rubber gasket. Because of this, you do not need thread tape.

Slide the red clip again sideways to lock it. You may hear a click when it is completely locked.

5. Test the Engine

Test the oil pressure by starting the engine. Give the electronic control module a few seconds to detect the new sensor. 

If the oil pressure has a value, all the codes are active, and the engine is continuously functioning, it is all fixed.

What Is The Oil Capacity Of The Cummins ISX?

Engine oil is essential for your car engine to function correctly. Because it lubricates the engine, the friction that can harm the engine is reduced.

Cummins ISX typically has a capacity of 14 gallons for oil.

Advantages of Using a Cummins ISX

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Cummins has consistently been at the forefront of technological development to improve emissions production and reduction.

Below are the benefits of using a Cummins ISX:

Maximize Usable Power

Cummins is an Interact System designed to boost performance significantly.

The Cummins ISX engine is a diesel engine built for heavy-duty trucks. The engine's predictive features maximize usable power. 

This is ideal when you need a lot of horsepower without sacrificing fuel efficiency. Cummins ISX engine can produce power ranging from 430 horsepower to 620 horsepower, which is best for vocational trucks.


The Cummins ISX diesel engine's fuel-efficiency technology makes use of steam power. The thermal efficiency of diesel engines is maintained when burning a natural gas substitute.

The Cummins ISX runs on natural gas and is among the world's cleanest-running diesel engines. 

High Torque

Cummins ISX has a high torque with a value of 2050 pound-feet. It can climb steeper gradients and provides a smoother and more leisurely ride.

Minimizes Nitrogen Oxide

Cummins ISX engine's combustion chamber temperatures are lowered, which minimizes the production of nitrogen oxide. Remember that nitrogen oxide is one of the contributors to air pollution and acid rain.

It has a diesel particulate filter that captures nitrogen oxide. Cummins ISX requires routine removal and cleaning of the diesel particulate filter.


Cummins produces a design and production of every component for Cummins ISX that is reliable and durable. It is fully integrated to ensure uncompromised performance and dependability in the Cummins Particulate Filter.

How Much Will It Cost To Replace The Oil Pressure Sensor?

An oil pressure sensor typically costs $1oo if you change the oil pressure sensor yourself. It generally is less expensive than paying a professional to identify and fix the problem.

However, letting technicians replace your oil pressure sensor will cost you $179 per hour, including the parts needed and their labor.

How Often Should You Change The Oil For Your Cummins ISX?

All combustion engines require oil. However, it deteriorates and thickens with time. You may change your oil when it reaches approximately 15,000 miles.

Changing your oil can decrease friction and lower your engine's operating temperature.

In Closing

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You may locate your oil pressure sensor behind the driver's side of your engine. Look for it closely because you cannot see it from afar. You may also easily replace it if you notice any leaking oil or if your engine is not functioning correctly.

Replacing the oil pressure sensor by yourself will cost you less compared to having it done by a technician. The steps to install it were mentioned above. 

We hope you have gathered all the information about the oil pressure sensor and that this post has helped you with all your queries. Before you leave, make sure to check out these other posts of ours for some interesting reads:

Can You Unplug Oil Pressure Sensor [Can I Drive With It Unplugged]?

Does Check Engine Light Come On For Oil Change? [Find Out!]

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