Do it yourself
Frequently asked questions about cars and motorcycles

What are the Reasons Why the Fuel Level Indicator Doesn't Work?

Model: (Various brands) Various
Part: Onboard computer

This YouTuber explains the main reason why the fuel level indicator in our car doesn't work. In fact, in 80% of cases, the problem is due to the level sensor (or variable resistor) connected to a float in the tank. Typical issues include wear on the electrical contacts. This problem is more pronounced if the tank often runs nearly empty, causing the float to operate in the same area, wearing down at the same point; it is also linked to moisture and impurities in the fuel that oxidise the contacts, and to the float, which can become stuck. However, we cannot exclude electrical issues: a blown fuse, disconnected or corroded connectors, faulty earth, or damaged cables. Also to consider, although quite rare, is a faulty instrument cluster or an issue with the ECU.

Posted on 9 August 2026 by ScegliAuto

Video tutorial

Related tutorials

(Various brands) Various In this video we can see the reasons why the rear camera of a car may not work: when we engage reverse gear, the rear camera should start working, bu…
(Various brands) Various Let’s look at the causes of an irregular idle: if there is a misfire, a cylinder may not be burning well or not burning at all, and the causes could …
(Various brands) Various The main reasons why we need to replace the fuel filter are difficulty starting the engine, loss of engine power, and irregularities in engine functi…

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos