P0464: Fuel Level Sensor A Circuit Intermittent
What to do
Driveable. If the gauge jumps mainly over bumps or through corners, mention that — it points at a connection or the float rather than the sender itself.
What this code means
The fuel level signal is dropping out or jumping erratically. A gauge that swings while cornering or over bumps is nearly always mechanical rather than electrical — either the float is fouling on something inside the tank, or the connector on the tank top has corroded.
Some movement of the gauge under hard cornering is normal on any vehicle; this code means the module has seen changes no amount of fuel slosh could explain.
Likely causes
Start here
- Corroded or loose connector · easy
- Intermittent open in sensor wiring · moderate
- Sticking or fouled float · moderate
Less common
- Worn sender float arm or resistor track · moderate
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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