cars more open longer, in the normal course of the car, there will always encounter a variety of problems, including large engine noise This is a worrying problem. Big car engine noise, is entirely a question to see the character of probability, whether the road is just a new car, or a very long mileage for a long time to open the car are likely to encounter these problems.
car engine noise, not only to the driver felt uneasy, but may also be a precursor to car problems. Then play with the car and we look at why the car engine will be a big noise, and how to solve these problems.
large when the cold start of the engine noise
When the car is parked for a long time after the start, the engine hair generating severe vibration, and then issue ldquo; da da rdquo; noise .
This is because the noise of the engine when the car park for a long time, substantially all of the lubricating oil flow to the oil sump, the oil pump during cold start oil pressure can not be immediately established, formed between the various components a thin layer of film, especially yes yes valve inside the cylinder head, can not get enough lubrication during cold start, hydraulic lifters and rocker failed to mechanical work that led to da da sound.
Resolution: This time the noise is normal when the engine is started after a while, the engine will return to normal, there is no longer violent noise.
the oil situation does not
is an important engine lubrication oil, and when there is a problem when the oil will affect the operation of the engine.
When the oil is too high viscous, easily lead to problems with the operation of the engine, the lubricating effect deteriorates, resulting in the engine friction during operation, thereby generating noise.
Resolution: Faced with this situation, just need to replace what the oil on it.
belt tension is not enough
When the sharp noise of the engine belt tension insufficient, the engine will produce creak at work, seriously affect the driver’s driving experience.
Solution: Faced with this situation, adjust the engine belt tightness can avoid the noise.
into the exhaust pipe leaks
When leaks into the exhaust pipe, the engine is started, when the intake and exhaust gas may leak from the leak , thereby generating vibration and noise.
Resolution: Faced with this situation, it is necessary to check into the exhaust pipe into the exhaust pipe replacement can avoid the noise.
Fuel quality is poor
When the replacement of poor quality when the fuel combustion in the engine will be poor, thereby causing the engine to severe vibration, noisy
Resolution: faced with this situation, the replacement of better quality and higher numbers then you can avoid the noise.
engine knock
The main engine is noisy because of engine knock, a number of factors are likely to lead to engine knock. Guard loose screws under the engine, the engine can not be fixed, it will shake violently at work when noise. This is a relatively common glitches, the fastening screw or adjusting the engine guard, it. Aging of the engine’s footpad. Footpad machine functions as a support of the engine, the engine can only be replaced after aging aging machine footpad. Machine paw pads play a role in supporting the engine when not function properly after the aging of the work, this time beyond repair, only replacement of the machine paw pads.
the engine compartment loose plastic parts: There are many plastic parts of the nacelle such as engine cover, intake manifold, etc., when they will be in loose engine nacelles studio with a collision, it will generate noise, this time tightening the noise can be avoided.
engine ldquo; tempering rdquo; fault. When excessive coke engine valve timing adjustment or not, the engine will have ldquo; puff puff rdquo; sound, this time cleaning coking valve, adjusting the valve timing on it.
In addition to theOutside the case, we want to reduce engine noise and a very common and very practical approach, that is to install noise cotton.
the engine noise is mainly through the hood, front fenders and other vibration transmitted to the cab. Therefore, the installation of some advanced sound-absorbing foam in the hood, the hood can not only suppress vibrations caused, but also absorb a lot of noise, very effective.
As the engine is the main reason for the large number of noise and possible solution, when the fault car problems, we recommend that the faithful car the first time to resolve, on one side over time National Cheng Kung University not only unsafe to drive, not comfortable but also costly.