The crankshaft sensor: why it breaks and how to replace it?

Probably every motorist got into such a situation, when one day after the turn of the ignition key his "iron friend" completely refuses to wind up. Strangely enough, but the reason for this can be not only a planted battery or a burnt starter, but also a crankshaft sensor. If its body has been deformed or the entire structure has moved a couple of millimeters to the side, this part needs to be replaced. And when neighbors in the garage tell you that replacing this element is quite a complicated operation that requires special expensive tools, do not believe these words. You can also change the crankshaft sensor yourself. Moreover, by doing this kind of work, you save a lot of money for SRT services and at the same time gain experience in this area. Therefore, today's article will be important for all motorists.

Why does the crankshaft sensor fail?

Based on the testimony of this part, the injection system synchronizes the operation of the injectors and ignition. Therefore, injection is impossible without this part. And when the crankshaft sensor stops working, the engine starts intermittent. Therefore, no modern car can not do without this little spare part. And in order to prevent this malfunction, you need to regularly check the status of the sensor. But when the symptoms began to come true, the driver does not have anything else but an urgent replacement.

How do I remove the crankshaft sensor?

Just note that this procedure can be performed without a special lift. So, let's get to work. First, unscrew the sensor mounting bolts that connect it to the gearbox. In fact, to remove the right part, we need only this stage. But since this part is placed in a very inaccessible place (practically on the bottom), we will have to sweat a lot. For work we need an extension cord, a key of 11 millimeters and, of course, good lighting. It is important that the length of the first part is about 80-90 centimeters. Loosen the bolts if these tools are available. But before removing the crankshaft sensor, pay special attention to the rubber lining. If in the future it is poorly installed or its gap is equal to at least 1 millimeter, all the readings of the measuring device will be inaccurate, and accordingly, and the engine will run erratically. It is best to mark this part and put it in a separate place. The entire process for dismantling the parts, bolts and linings should be carried out with great care. This detail does not like rough handling.

Next, take a new sensor crankshaft and mount it in place of the old one. During installation, this element should be lowered through the entire engine compartment, so as not to catch the connector from the installed element from above. Then do not forget about the gasket. We mount it neatly and check the integrity of the structure. It is important that the gap between it and the sensor is minimal or nonexistent. After that, we attach the wires to the part, connect all the connectors and start the ignition. If you did everything right, be sure - the engine will start at half a turn.