It is never pleasant to hear a noise in your car that you don’t know the starting point of. So, what if you discover a loud noise that remains on your Toyota Prius? It is extremely plausible that this is a minor trouble, but before beeing sure, it is better to complete some verifications. Whether that loud noise comes from the front of the car, from the rear, whether it shows up when you accelerate or when you are parked, our team has made this article to help you solve it. First, we will summarize the possible explanations for the trouble according to when loud noise shows up on your Toyota Prius, and then we will look into the region of origin of the noise. In any case, if this noise continues, follow these recommendations to help you find the source.
–
When does my Toyota Prius make a loud noise?
One way to discern a noise from your Toyota Prius is to establish when it shows up. Indeed, some concerns can be linked to components that are only stressed under certain types of conditions. It is this process that we will focus on in this first part.
Loud noise Toyota Prius when accelerating
Loud noise on Toyota Prius that appears when you are accelerating can be symptomatic of multiple failures. Indeed, if you experience a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will generate a much higher noise than during normal operation. Furthermore, it is also highly plausible that loud noise on your Toyota Prius is in connection with a wheel bearing, which is one of the most common causes of these types of symptoms. Another alternative is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also plausible that the trouble may come from a deformed tire or an unbalanced wheel that will tend to vibrate as it gains speed.
o
When my Toyota Prius is stopped
If your Toyota Prius makes a loud noise while not accelerating, engine on, the trouble may be connected to poor air intake. An air intake hose that has come loose or has a hole in it may be the induce.
Where does loud noise come from on my Toyota Prius and how can I be sure of its origin?
Now that we have defined the source of the sound, we will focus on the verification stage to make certain that this is the concern you are experiencing.
-
The loud noise comes from the wheels of my Toyota Prius
As we have seen earlier in this article, loud noise from the wheels of your Toyota Prius may be connected to two main disorders. If it is one of your tired bearings, it will tend to make a thumping noise that intensifies when it is under stress (spins faster and faster). So remember to check by driving “fast” (neutral gear on and window open to hear only the noise of the wheels) that the noise is located here, if this is the case swap it or them straight away. If it is a deformed tire, make sure to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Toyota Prius that is the trouble, you will tend to feel a vibration in the direction of the car as you go faster. In both situations, you will have to go to your auto technician to swap the tires or accomplish a balancing.
-
The loud noise comes from the engine of my Toyota Prius
In case you have discovered loud noise as coming from the engine of your Toyota Prius, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be associated with a compression loss during the engine ramp-up phase, so you should encounter a power loss during your acceleration. If the loud noise on your Toyota Prius is related to air intake, the check will be done mainly visually, check all your air intake hoses by a visual control in your engine block to be sure that it is not damaged or disconnected which would cause an air intake, if it is just disconnected you can reconnect the air intake tubes yourself. Then check that the engine idle speed is not random. In case you confirm one of these two disorders, take your car to your garage .
-
Loud noise comes from the exhaust pipe of the vehicle
If the noise you have perceived comes from the exhaust pipe of your Toyota Prius, it is highly plausible that you have rust if your car is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Toyota Prius, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To confirm this, get help from someone who will stand under the car while you accelerate to find the exact area of origin of this noise. If it is a hole, you can repair it with a putty provided for this purpose, or, if it is a collar, “reattach” it. If it is cut or the hole is too big, it is better to get closer to your mechanic.
