[Daily car maintenance] Why did Volvo replace the gasoline pump oil assembly when a small problem caused a major failure?
BarbaraGreen 
8 Hello everyone, this is a column focusing on car repair and maintenance. There are car secrets you don’t know here, and it will teach you how to avoid big pits on the road to car maintenance. I believe that not only you, but also many people have a certain hazy feeling about the automotive aftermarket. Here will help you uncover the unknown stories of car repair and maintenance.
A car is a relatively complex mobile machine, and many car owners will encounter many problems while maintaining a car. Although inaccurate oil gauges are rarely mentioned, there will always be some cars with this problem.
In this issue, Xiaobian will lead you to interpret: You must pay attention to the information on the car instrument and be careful of losing a large amount of money!
In this issue, Xiaobian will lead you to interpret: You must pay attention to the information on the car instrument and be careful of losing a large amount of money!
The failure of this Volvo is a bit weird. The owner of the car only realized that the fuel tank was completely empty after driving normally on the road until the engine automatically stalled, and the oil gauge also showed that the tank was nearly full of oil.
There was no choice but to face the fate of being towed.
There was no choice but to face the fate of being towed.
The amount of oil displayed on the instrument panel is transmitted through the oil level sensor in the fuel tank. There is no dispute that this Volvo has to remove the fuel tank.
Removing fuel tanks is not a simple task. It not only tests the dismantling method, but also tests the waist skills of the maintenance technician. Of course, the most important thing is to test the team tacit understanding of the maintenance technician.
The oil level sensor is integrated with the oil pump, so the oil pump needs to be disassembled for further decomposition.
This is the oil pump assembly, and the problem is the oil level sensor. I originally thought that just replacing an oil level sensor would solve the problem. Who knew that the oil pump of this car was directly burned out due to the high temperature and inability to dissipate heat after the oil tank ran out of oil. It’s burned out. It was originally a matter of sensors, but now the entire oil pump assembly has to be replaced.
There was no choice but to replace the oil pump with a new oil pump assembly. The oil pump assembly is not cheap, but it is much more expensive than a separate oil level sensor.
There are many small pipes on the fuel tank shell that must be installed in place, otherwise the fuel will spray out after the engine starts, which will be too dangerous.
There are many oil pipes on the fuel tank. There are almost a dozen installation and fixing positions under the body alone, and each one cannot be ignored.
What happened to this Volvo XC60 was indeed a bit sad. It was just a misaccurate fuel gauge, but then a fuel pump assembly was directly lost. The maintenance cost has directly increased from a few hundred yuan to a thousand yuan for a maintenance unit. It is a bad situation for car owners to spend money!
The initiator of all this is due to a simple oil level sensor inside the fuel tank!
After the oil level sensor fails, there will be abnormalities in the oil gauge. In fact, all this should have been avoided. However, the car owner drove too seriously and perhaps didn’t notice that the value of the oil gauge had not changed at all, which led to this result. So when driving, you really have to pay attention to the various information displayed on the meter.
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