OBD-II Code
P0464
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$30–$900
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
$30 (connector clean) to $900 (full module on a Sienna).
P0464 means the fuel level sensor circuit is reporting an intermittent fault — the ECU is seeing the sender voltage glitch outside its expected range (typically 0.5-4.5V scaled across the 16-270 ohm float-resistance sweep, full-to-empty) and then come back into range on its own.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP0464 means the fuel level sensor circuit is reporting an intermittent fault — the ECU is seeing the sender voltage glitch outside its expected range…
P0464 means the fuel level sensor circuit is reporting an intermittent fault — the ECU is seeing the sender voltage glitch outside its expected range (typically 0.5-4.5V scaled across the 16-270 ohm float-resistance sweep, full-to-empty) and then come back into range on its own.
Cheapest-first diagnostic ladder
- Drop the rear seat or access cover and reseat the fuel-pump-module connector — a 5-minute job that fixes maybe a third of P0464 tickets, especially on vehicles that have been off-road or salt-belt-driven where contact corrosion is the silent killer.
- Scan-tool the live fuel-level percentage and watch it while a helper rocks the vehicle side to side; a healthy sender sweeps smoothly between values, a dying rheostat element jumps in steps or drops to 0% momentarily.
- Back-probe the sender signal wire at the connector with a meter on Hz/duty cycle (for analog senders, read DC volts) — at half tank you should see roughly mid-range (around 2.5V or ~140 ohms for a typical 16-270 ohm sender); a wildly erratic reading with the float held steady means the resistive track in the sender is worn through. The expensive-misdiagnosis caveat: don't drop a fuel tank to replace the pump module on a P0464 until you've ohmed the sender and confirmed the harness from the tank-top connector forward — half of intermittent P0464 codes are a corroded body-side connector or a chewed wire under the rear seat, not the $300-500 pump-and-sender assembly.
Vehicle-specific patterns2004-2010 Ford F-150/Expedition and 2007-2014 Ford Escape commonly throw P0464 from the well-known fuel-pump-module top-plate connector corroding — t…
- 2004-2010Ford F-150/Expedition and 2007-2014 Ford Escape commonly throw P0464 from the well-known fuel-pump-module top-plate connector corroding — the harness sits under the rear seat or pickup bed and water/salt gets in; cleaning pins with DeoxIT often clears it before parts swap.
- 2003-2008GM trucks (Silverado/Sierra/Tahoe/Yukon) with the in-tank sender frequently throw P0464 from sulfur-contaminated fuel etching the resistive strip on the sender card — GM revised the sender material around 2007 and replacement parts use the updated alloy; expect 60k-90k miles of life on the original.
- 2005-2010Chrysler 300/Charger/Magnum and 2007-2012 Jeep Wrangler JK throw P0464 from a known fuel-level sender failure inside the module — Mopar sells the sender separately from the pump, which saves money if the pump still flows pressure.
- 2008-2013Toyota Highlander/Sienna throw P0464 from harness chafe where the body harness drops into the tank cavity. Sender-only replacement runs $80-220 in parts; full pump-and-sender module is $300-600 parts, $450-900 installed.
Estimated repair$30 (connector clean) to $900 (full module on a Sienna).
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