There is nothing as concerning as unusual noise from the engine. Do not go immediately to your auto repairer, the problem is probably not as serious as we think. To correctly identifier your problem we will find out the most regular noises on this Toyota Prius 3 as well as where they come from.engine-noise-Toyota-Prius-3

The engine of my Toyota Prius 3 makes a thud

In case you are in neutral and the engine emits a kind of roar , there is definitely a problem. It could be from a badly hung engine cover, which rebounds repeatedly against another component. It is also plausible that a serious hissing sound comes from the belt. In the event that your Toyota Prius 3 does not make a strange noise in neutral, but a deaf noise appears as soon as you drive, the problem most likely comes from bearings and not the engine. Do not wait too long to go to an auto repairer, it can get worse.

The engine of my Toyota Prius 3 makes a tractor noise

The Toyota Prius 3 emits a airplane noise , but without having its performance. In general, it comes from a pierced or defective pot, and not from the engine. The noise should be louder and more serious than usual, but related to acceleration. the more you accelerate, the more noise the automobile emits. When this is not the case and the noise does not vary depending on the acceleration, go to your car repairer. The problem is probably a faulty engine component.

The engine of my Toyota Prius 3 makes a pan noise

A pan noise on this Toyota Prius 3 generally remains in connection with the belt, and not of the engine as such. It is often the accessory belt not tight enough, or one of the tensioners damaged. Put a few wrenches on the belt when it is not tight enough, or change the tensioner roller.

The engine of my Toyota Prius 3 makes a lot of noise

In case your Toyota Prius 3 produces a lot of noise it could usually be due to two main reasons. For the first, it is a thud that will come from bearings . However, this can also come from tires not swollen enough, or worn out. If your engine produces a lot of noise, it could also be due to a problem with fuel combustion, or exhaust perforated. Finally, it is rather rare that the engine is responsible for this kind of noise.

The engine of my Toyota Prius 3 makes a clicking noise

This is a fairly usual and relatively scary problem. This noise of slam could arise from various engine parts. However you will find below the two most common.

  • Poor combustion. In fact, poor or partial combustion could cause popping noises. Do not attempt repairs if this is what is happening, rather go to your auto repairer.
  • If this noise only appears cold, it could be due to hydraulic lifters .
  • The problem could also arise from pistons , rockers , etc.

Not easy to diagnose. Mechanical noises must be taken seriously. We advise you to go to your car repairer for a more exact check. Be careful !