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2002 ford explorer fuel pump replacement time how to#
2002 ford explorer fuel pump replacement time driver#

This resistance is connected to the fuel gauge in the driver’s dashboard. At this point, you find the strange behavior of the fuel gauge, which distracts and annoys drivers. They keep on separating and creating gaps, thus resulting in false readings and false fuel levels. Now, these connected fingers keep making some gaps between the metal-connected sheets and the float needle. The metal lines become corroded and dull as they become old, due to the low-quality fuel or any harmful additives added to the fuel They have the shape of small metal lines that touch the board and send the readings to the fuel gauge in the driver’s dashboard. The sensor consists of a float that is connected to a variable resistance board. Therefore, the fuel gauge can understand this formula as it is preprogrammed on it, and work accordinglyĪs we all know, this problem is related to the fuel level sensor located inside the fuel tank. When the fuel tank is full, it provides less resistance. Therefore, when the tank is empty, the wiper points to high resistance, and vice versa. When the fuel level changes, the wiper moves across the variable resistance, causing the voltage to change. The end of the variable resistor is attached to the ground with the wiper moving over the resistive material. This is how it works? The float switch floats over the fuel’s surface and is connected to the variable resistance with a metal connecting rod.

2002 ford explorer fuel pump replacement time how to#

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Wiper: It looks like a very small windscreen wiper, which moves over a resistive material.

Variable Resistor: This is connected to the float via a metal needle to sense the variations in the float height.

Float Switch: It is usually made of foam, and its job is to float over the fuel quantity in the tank to give a physical representation of the fuel amount.

It depends on measuring the voltage across the variable resistor to determine the level of the fuel remaining in the tank. This mechanism is called a fuel level sensor. We also need to know how it senses the changes in the fuel tank. To know the cause of this problem, we need first to know how the car measures the amount of fuel. What Causes My Gas Light On When My Tank Is Full? We are therefore going to break down this problem to know the root of the problem and how to fix it.

2002 ford explorer fuel pump replacement time driver#

The question of why the fuel light comes on when the tank is full is a problem many people face during their vehicle lifetime.ĭespite how easy this problem may look, it can make the driver feel worried on the road and be afraid to run out of fuel. To his surprise, he finds that the car only needs half of the tank to get fully refueled. Usually, the driver will stop at the nearest fuel station to get some fuel for their vehicle. The driver could be driving his car, and surprisingly the low fuel light comes on. In this article, we are going to talk about a major problem people experience in their cars.