A noise from the turbo on a Toyota Previa 2 will sometimes worsen and cause major malfunctions, sometimes a breakdown of the turbo. It is therefore essential to understand what your dysfunction is so that you can take the necessary measures. First of all we will see some Tricks to properly maintain this turbo, and then what are the causes of these sounds and how to fix them.whistling-turbo-Toyota-Previa-2

Turbo noise: a few tips

Turbo malfunctions can be prevented. Here are some tips to properly maintain it or adopt a course of action to protect it. To protect the turbo of your Toyota Previa 2, we advise you not to accelerate during startup. Wait until the engine is running to accelerate. Check the oil level every 30 000 km about. The sewage obviously have a favorable effect on the turbo.

Turbo whistling on the Toyota Previa 2: what are the causes

We will now take a tour of the most recurring sounds on this Toyota Previa 2. You will therefore be able to correctly detect the cause of this noise in question.

Your Toyota Previa 2's turbo makes noise all the time

If your turbo produces a strange sound in all situations, there is clearly a malfunction. This noise comes from the pressurization of the turbo. This is often due to insufficient lubrication of the mechanism. Have it examined by a mechanic for further inspection. If the turbo of this Toyota Previa 2 is completely damaged, you may need to change it. Generally, this concern is accompanied by a light on your dashboard.

Toyota Previa 2: Noise on acceleration

The turbo of this Toyota Previa 2 emits a hissing sound when you press the accelerator. This dysfunction can come from two major reasons. This probably comes from a supply hose or from the perforated exchanger. It is plausible that the noise emitted is more like a breath than a whistle sound. In this situation, a visual inspection will be required to identify the fault. You can change the hose if necessary, or change the exchanger if it is HS.

Toyota Previa 2: Noise at deceleration

In case the turbo of the Toyota Previa 2 makes a noise when decelerating, it means that the turbo is still running! There is no real reason why the turbo should sound just when decelerating. The sound of your engine probably covers that of the turbo when you press the accelerator. It's plausible, however, that your engine will make noise when you let go of the accelerator pedal, but it certainly doesn't come from your turbo. Probably an intake dysfunction?

Toyota Previa 2: Metallic turbo noise

A metallic noise from the turbo of the Toyota Previa 2 comes from a mechanical defect. So that means that the turbo is in bad shape! Do not delay too long before going to a professional. Breaking the turbo can cause much more serious malfunctions, and is expensive to replace.