![]() If it does select the derate expect to lose both HP and power. The derate may occur depending on the mood of the ECM. The set point for this level is also dependent on engine speed but far worse actions will be taken if you hit this level. The second definition is called a very low oil pressure reading and it is something you should be concerned about. This is the stage where you will not face a derate or loss of HP. The fault will be activated but not logged unless the engine has been running for 15 seconds or more. The set point is determined by the engine speed. The first meaning is that you only have low oil pressure. There are two meanings you should be aware of when you see that oil pressure light illuminated. It is a handy tool to have around as monitoring your oil pressure is essential to performance as well as fuel efficiency. We have not checked the price on that gauge but it should be affordable. You can probably get the gauge or other models from the various auto parts outlets or engine parts and accessories stores in your city. You should have some leeway for the normal psi operating level and read your manual to see what that leeway is. Higher or lower than 32 indicates you have a slight problem depending on where the needle falls in that range. The normal pressure range for oil in the C7 is 0 to 100 psi. If you get a higher-than-normal reading on this gauge, then you know that the sensor is failing or has failed on you. One of these gauges is the Datcon Oil Pressure Sender 06555-7353 and it is a one wire set up that connects to the same spot as your oil pressure sensor. There is a mechanical gauge that you can buy and hook up to see if this sensor is working right or not. So it is not a serious problem but it may lead to a serious problem if it is not taken care of when you get a chance to work on your engine.Īs all of our past recommendations have said, if you are not mechanically inclined or at an age where working on engines is not so healthy for you, then go to a good mechanic to have the work done. The engine should work as usual but you should get the sensor changed as soon as possible. The good news is that if this part fails, you will not lose any horsepower or face a derate. When the light is on you know that all oil pressure strategies have been disabled. Once illuminated you have been warned that this part is failing or has failed on you. The ECM will detect the problem and illuminate the dashboard diagnostic light. In this case, there is an ECM device watching over the sensors and if anything happens to the oil pressure sensor, then you can expect the following to take place: One of the good things about modern engines is that they have a part that monitors all the other parts or sensors. What Happens When The Oil Pressure Sensor Fails? Engines just are not like they were in the old days. One thing is for sure, if you are not working on your Cat C7 yourself, you may be padding the labor bill when you have that sensor replaced or repaired. If you go to the link for the diagram you will see what the other numbers are pointing to. The other emissions and vital parts of a diesel motor are in the way of a smooth repair. #5 in the diagram is the engine oil temperature sensor but you may not be able to see it in the photograph. Modern engines have become mechanics’ nightmares with all of the additional parts used to create these top motors. What we can guarantee is that you may have to remove other parts to replace this sensor. We cannot guarantee that access to your oil pressure sensor will be easy or that you won’t need a mirror to find it. But if you look on the driver’s side of the block about halfway down and you should find it. The photo and the diagram provide you with the best views of this sensor even though the location may be a bit off between the two. The diagram seems to have placed the sensor a little lower than the photo does but them we are not expecting precision with the diagram.
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