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Cars and trucks

Oil leakage through oil pressure sensor R12 Mod 89

faustojoseal
hace 6 años
hace 6 años
Hello friends of the forum, I annoy you for the following reason. I have a Renault 12 model 89, fifth box, today when I started the car, everything worked fine, until suddenly a few seconds later, I see that the light that marks the temperature and the oil pressure turned on ... so I put on Let's see. I immediately suspected the oil because the radiator is new and I put refrigerant and distilled water on it. I pulled down the car and saw that, by the oil bulb , the one next to the filter dropped a few drops ... I wouldn't say it's a giant loss, but yes A constant loss, the loss occurs more than anything with the car running. I already read in the forum and saw that many posts say that this is solved by changing the bulb, so I wanted to ask you the following. If I change the oil pressure bulb, will the problem be solved? Does the oil pressure light come on because of that, because there is a loss from the bulb, even if it is not a very large loss? Does that bulb carry any gasket OR something special, or just take out the bulb and buy the same change it and now? I watched some videos and they say that over time those bulbs get damaged. That bulb must be about 5 or 6 years old or many more because I have the car about 6 years ago and I never touched it , so I don't know since when it's on. Could it be that it is failing, that's why it leaks and that's why the oil pressure light comes on? I look forward to your help for which I thank you in advance, greetings.
Mangel HH
Mangel HH
19.786
hace 6 años
hace 6 años
Hi Fausto The bulb has an internal deficiency that causes not only leakage but also an unstable reading, replacement is necessary. Look at the internal diagram of it. Salu2.
faustojoseal
hace 6 años

Thank you very much for your response, today I'm going to buy it and I'll change it, hopefully that's the reason.
One more question, to replace the bulb if or if it is necessary to drain all the engine oil? If you do not answer me before I go to buy the bulb I guess it will be something that I will find out at the moment haha greetings

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faustojoseal
hace 6 años

Hi, sorry to bother you again. Today I took out the Carter cover and located the pressure bulb, verify that the oil level is fine, and so it was, it was a few millimeters below the maximum mark, I started the car waiting to see the lost by the bulb, lost that I saw last night and that the oil pressure light should come on again just as it happened yesterday, but today none of that happened ... not even the constant loss of yesterday appeared, nor did the light that warns the oil pressure come on, leave the car running a good time, accelerate it until it goes well in temperature ...

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faustojoseal
hace 6 años

the oil that covered the bulb melted but nothing happened ... all normal as always. Could it be that the bulb is about to break and that's why I failed yesterday and not today? I already bought the new bulb anyway, I'm waiting for an acquaintance to lend me the key to get the other one because just that number I don't have, I don't know, I expected to see yesterday's loss, but in the end nothing happened. Thanks and regards.

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Mangel HH
Mangel HH
19.786
hace 6 años

Hi Fausto It is not necessary to drain the oil, just replace the bulb cold. The leak of this will generally be observed with the hot engine, it is no longer reliable due to poor condition. Regards.

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