P0464: Fuel Level Sensor Circuit Intermittent
Can you still drive? Yes, the vehicle drives normally. The only concern is not knowing your actual fuel level, which could leave you stranded. Keep track of mileage between fill-ups.
What Does P0464 Mean?
Code P0464 indicates that the fuel level sensor signal is fluctuating erratically or is intermittent. The fuel level sensor (also called a fuel sending unit) uses a float-and-resistor mechanism inside the fuel tank. When the signal jumps unexpectedly or is noisy, the ECM sets this code. This causes the fuel gauge to read inaccurately.
Need to read your codes?
An OBD-II scanner lets you read and clear diagnostic trouble codes from your vehicle's computer. Most scanners work with any car made after 1996.
Browse OBD-II Scanners on AmazonCommon Causes
- Worn fuel level sensor contact points
- Corroded wiring at fuel tank connector
- Failed fuel level sending unit
- Poor ground connection at fuel tank
- Damaged wiring harness between tank and ECM
Symptoms
- Check engine light on
- Fuel gauge fluctuates erratically
- Fuel gauge reads empty when tank has fuel
- Fuel gauge reads full constantly
- Low fuel warning light behavior is unreliable
Diagnostic Steps
- 1Monitor fuel level PID with scan tool to observe erratic readings
- 2Check wiring and connector at the fuel tank for corrosion
- 3Measure fuel level sensor resistance at the tank connector while manually moving the float
- 4Check ground connection at the fuel tank assembly
- 5Inspect wiring harness for chafing or damage near the fuel tank straps
- 6Replace fuel level sender if resistance readings are erratic
Recommended Parts & Tools
fuel level sending unit
fuel pump assembly with sender
electrical contact cleaner
wiring repair kit
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $100 - $500 |
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Chat with AI About P0464Commonly Affected Vehicles
Related Recalls
1 Active Recall — 2026 Ford F-150
The following NHTSA safety recalls have been issued for this vehicle. Contact your dealer to check if your vehicle is affected.
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
Ford Motor Company (Ford) is recalling certain 2021-2026 F-150, 2022-2026 F-250 SD, F-350 SD, F-450 SD, F-550 SD, Maverick, 2024-2026 Ranger, 2023-2026 F-600 SD, 2022-2027 Lincoln Navigator, Expedition, and 2026 E-Transit vehicles. When towing a trailer, the integrated trailer module (ITRM) may lose communication with the vehicle, possibly causing a loss of brake and turn signal lights, or a loss of brake function. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, " Lamps, Reflective Devices, and Associated Equipment."
Remedy: The integrated trailer module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters are expected to be mailed March 17, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 26C10. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 17, 2026.
Data provided by the National Highway Traffic Safety Administration (NHTSA).
Frequently Asked Questions
Can I run out of fuel because of P0464?
Yes, if the fuel gauge reads incorrectly, you may think you have more fuel than you actually do. Track your odometer miles between fill-ups until the sensor is repaired.
Is the fuel level sensor part of the fuel pump?
On many vehicles, the fuel level sender is integrated into the fuel pump module assembly. On some vehicles, it can be replaced separately, which is less expensive than replacing the entire pump assembly.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
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