There is nothing more frightening than unwanted noise from the engine block. Do not suddenly go to your mechanic, the problem may not be as serious as you might imagine. In order to correctly identifier your problem, let's see the most regular noises on a smart fortwo as well as where they can come from.
The engine block of my smart fortwo makes a thud
If you are in neutral and the engine block produces some kind of roar , there is indeed a problem. It can come from a not properly fixed engine block cover, which ricochets repeatedly on another constituent. It is also plausible that a serious buzzing sound came from the belt. If your smart fortwo does not emit any strange noise in neutral, but a deaf noise occurs when you are driving, the problem must most likely come from bearings and not from the engine block. Don't wait too long to get to a mechanic, it could get worse.
My smart fortwo engine makes a tractor noise
Your smart fortwo produces a airplane noise , you think you are at the airport. Usually, it comes from a hole or damaged pot, not from the engine block. The noise should be louder and more serious than usual, but related to acceleration. the faster you accelerate, the more noise the automobile produces. If this is not the case and the noise does not vary depending on the acceleration, go to your mechanic. The problem must certainly come from a defective engine block component.
The engine block of my smart fortwo sounds like a pan
A strident noise on a smart fortwo is regularly due to the belt, not the engine block as such. It is usually the accessory belt not tight enough, or one of the faulty tension rollers. Put a few wrenches on the belt when it is not tight enough, or change the tensioner roller.
The engine of my smart fortwo makes a lot of noise
If your smart fortwo makes a lot of noise it can often come from two main causes. The first is a thud that will come from bearings . However, it can also come from tires not inflated enough, or even too worn. If your engine block produces a lot of noise, it can also come from a fuel combustion problem, or exhaust perforated. Finally, it is quite exceptional that the engine block is the source of this kind of noise.
My smart fortwo engine makes a popping sound
This is a relatively usual and quite annoying problem. This noise of slam may arise from various parts of the engine block. However, here are the two main ones.
- Poor combustion. And yes, poor or partial combustion can cause clicking noises. Do not engage in repairs if this is the case, rather go to your mechanic.
- If this noise only comes in the first few minutes, it may have come from hydraulic lifters .
- The problem can also arise from pistons , rockers , etc.
Not easy to determine. Mechanical noises must be taken seriously. It is advisable to go to your mechanic for a more specific diagnosis. Be vigilant!