It is normal for the suction truck to smell the oil when it is started. That's because when the suction truck is started in the cold vehicle, the on-board computer will be appropriate according to the water temperature signal and the temperature of the intake air. The fuel injection volume is increased. At this time, the engine of the suction truck is still not able to reach the normal operating temperature, and the oil and gas cannot be fully burned. After some less fully-burned gasoline is exhausted, You will be asked about the smell of oil. After waiting for the operating temperature of the suction truck engine to reach 80 to 90 degrees, the key oil and gas of the cylinder can fully burn, and the oily taste will automatically disappear. This situation is also normal.
However, when the vehicle is suctioned, it smells like oil when driving. It may be due to a failure of the engine cylinder. After the unburned oil is discharged through the exhaust pipe of the suction truck, it is slowed down. The oily smell will enter the carriage. In addition, when the temperature in winter is low, the engine of the suction truck will squirt more oil at idle and during start-up. This is also one of the reasons for the heavy oil level. The suction truck may not smell at the opening. It tasted.
If the suction truck has a relatively serious oily taste, the driver should check if the canister rubber piping has deteriorated. For those old suction trucks that have a longer driving experience, the rubber parts in the engine compartment are also prone to aging. The canister is connected to the rubber pipes all the way to the throttle. If there is an aging condition, it will cause a leak. It turned out that the oil vapor introduced into the intake branch along the pipeline leaked into the engine compartment.
If there is a leak in the gasoline pipe of the suction truck, then the oil smell may also enter the car along the direction of the air conditioning system. When leakage occurs, it is generally at the interface between the pipelines. After opening the engine compartment lid of the suction truck , the first step can be made directly. If there is leakage at the interface, the surface will pick up a lot of dust over time and cause sludge. If the amount of oil is too much, the oil also enters the carbon steel along the pipeline. It turned out to be a canister that was used as gasoline steam. When the oil came in, it would release those extra gasoline vapors from the air vent to the outside. By this time, it was not a matter of removing odors. It could be the oil of the vehicle. There was a problem with the road line and so on.
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