Common Signs of a Bad Ford Ranger Fuel Sender
One common problem with the Ford Ranger is a faulty fuel sender. Complications on this part result in an incorrect reading on the fuel gauge. It can show full when it's really empty or near dry when there's really still a lot left. With this, you'll never be sure as to how much gas is really left inside your Ranger's tank. The following are common signs of a bad fuel sender you need to watch out for to quickly get rid of such complications:
There is actually more or less fuel in tank compared to the gauge reading.
If you think the fuel gauge is giving you a fishy reading, you can find out for yourself how much fuel is actually inside the tank with just the use of a piece of wire or rod. Simply open the fuel cap and stick the wire or rod inside. When you feel that it has hit the bottom of the tank, pull it out and examine it like it's an engine's dipstick. Compare the fuel level on the stick to that of the gauge. Any discrepancy means a problem in the assembly.
Your truck's mileage is unusually higher or lower.
A busted fuel sender often results in sudden changes with the fuel gauge's reading. There may be a problem with the unit if your truck's running unusually longer or shorter in one tank of gas. Know the miles travelled based on the odometer and gallons of gas poured in from your last visit to the service station. With these, you can compute how much fuel your truck is really using. You can blame the fuel sender if the numbers don't seem to add up.
The sender gives wrong levels of resistance when tested.
One sign of a bad fuel sender is a unit that gives off wrong levels of resistance when its resistor is tested. Disconnect the sending unit from the assembly and plug it to a tester. There are certain readings you should get whenever the mechanism's float assumes a "full" or "empty" point. The exact number slightly varies depending on the model year of your Ford Ranger. As an estimate, it should read around 70 ohms when the tank is empty and near 8 ohms when it's full. If it falls nowhere near these numbers, replace your truck's fuel sender at once.