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<h2>Bad fuel sending unit symptoms</h2>
<ul>
<li>Inaccurate fuel gauge: The fuel gauge doesn't reflect the actual fuel level accurately.</li>
<li>Fluctuating fuel gauge: The gauge shows sudden, irregular fluctuations.</li>
<li>Stuck fuel gauge: It remains stuck at a full or empty reading.</li>
<li>Fuel warning light: The low fuel warning light may illuminate even with enough fuel.</li>
<li>Difficulty starting: Starting the vehicle can be challenging, especially if the gauge is unreliable.</li>
<li>Misjudging fuel consumption: Problems with fuel economy calculations may occur.</li>
<li>Running out of fuel: Drivers may unexpectedly run out of fuel due to inaccurate readings.</li>
<li>Noisy fuel pump: Unusual noises from the fuel pump can be a sign of a faulty sending unit.</li>
</ul>
<h2>Fuel sending unit vs fuel pump</h2>
<h3>1. Fuel sending unit</h3>
A fuel sending unit measures and reports the fuel level in the vehicle's tank to the driver via the fuel gauge on the dashboard. It contains a float and a variable resistor and is located inside the fuel tank. Maintenance typically involves addressing fuel gauge accuracy.
<h3>2. Fuel pump</h3>
A fuel pump's primary function is to deliver fuel from the tank to the engine for combustion. It pressurizes and circulates fuel through the system, ensuring the engine receives the necessary fuel. The pump has an electric motor and is often located inside the fuel tank. Maintenance is crucial to ensure proper fuel delivery and engine performance.

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GAS; Except School Bus; 40 Gallon Tank

Fuel Tank Sending Unit for 1990-1995 GMC P3500

Fuel Tank Sending Unit

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