P0461: How to Diagnose & Fix — Fuel Level Sensor 'A' Circuit Range/Performance
32 vehicles · 11 makes · $30-$1,400 repair
How to diagnose and fix P0461: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
GMC Sierra 3500HD · 2007–2014
On 2007–2014 Sierra 3500HD models, the fuel tank mounting straps and the fuel level sender unit are prone to corrosion, causing inaccurate fuel gauge readings and in some cases complete sender failure. NHTSA complaint data documents numerous owners reporting sudden fuel gauge drops to empty or erratic readings unrelated to actual fuel level. The plastic float arm on the sender can also crack, exacerbating the problem.
Common Symptoms
- Erratic or inaccurate fuel gauge readings
- Fuel gauge stuck on full or empty regardless of tank level
- Low fuel warning activating with significant fuel remaining
- Running out of fuel despite gauge showing fuel remaining
- DIC fuel range displaying incorrect distance to empty
How to Fix
Replace fuel level sender/pump module assembly (ACDelco M100087 or equivalent). Inspect and replace corroded fuel tank straps if necessary (GM part 15811919). Tank may require drop for full access. Application of anti-corrosion spray on new straps is recommended. Labor 2–3 hours; flush tank if sediment contamination is present.
Sources for this issue (1)
Volvo S60 · 2001–2007
Fuel system complaints are the single largest NHTSA category on the early P2 S60 (roughly 74 complaints on the 2002 and 92 on the 2001). Two distinct parts fail. The fuel level sender's resistive card wears where the wiper arm sweeps, so the gauge reads erratically, sticks full, or drops to empty with a full tank and triggers the low-fuel warning. Separately, the in-tank fuel pump module loses pressure with age and heat, producing long cranking, hot-restart no-starts, stumbling under load, and eventual stalling. Because the pump and sender share one tank-top module, a failure of either usually means dropping or accessing the same assembly.
Common Symptoms
- Fuel gauge reads erratically, sticks, or shows empty when full
- Low fuel warning with a full tank
- Extended cranking before start, especially when hot
- Engine stumbles or stalls under load or on hills
- Whining noise from rear of vehicle
How to Fix
Confirm with a fuel pressure test at the rail and by watching live fuel-level PID data, since a bad sender is a cheap fix and a bad pump is not. The sender is available separately on most P2 cars and can be replaced through the access hatch under the rear seat without dropping the tank. If pressure is low, replace the complete pump module and the fuel filter at the same time, and inspect the pump's power feed and ground, as corroded connectors at the tank-top plug mimic pump failure. Do not simply reset the gauge; a worn sender card will re-fail.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Bosch 8683142 left fuel-level sending unit
replace a PID-confirmed worn fuel-level sender while preserving the separate pump-pressure diagnosis Fitment/availability: 2001-2007 P2 Volvo S60 sender-only branch; confirm the left sender, chassis break (catalogs commonly specify from …
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Sources for this issue (2)
RAM 1500 · 1994–2010
The in-tank fuel level sending unit (float arm and variable-resistor card, part of the fuel pump module) wears out and gives false readings — commonly reading full then dropping to empty, sticking, or bouncing. On OBD-II trucks it sets P0463/P0462. It is one of the most-searched Ram gauge complaints and is separate from the instrument-cluster fault.
Common Symptoms
- Gauge reads full then suddenly drops to empty
- Gauge stuck on empty or full
- Erratic/bouncing needle
- Low-fuel light behaves incorrectly
How to Fix
Confirm the sender resistance sweep before replacing the cluster. Repair requires dropping the tank (or removing the bed) and replacing the fuel level sending unit — often done as a complete fuel pump/sender module for reliability. Avoid the cheapest unbranded senders, which frequently read wrong out of the box; use a quality module (Delphi/Spectra/Mopar). Parts $60-$250, with labor $150-$500.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Carter P74673M fuel pump and level-sender module
1994 Dodge Ram 1500 gasoline 3.9L, 5.2L or 5.9L with Carter-style module as listed; do not extend to later connector designs without exact match.
- Detroit Axle FP74735M fuel pump module assembly
1998-2000 Dodge Ram 1500 with 26- or 34-gallon tank as listed; confirm engine, connector and OE cross-reference. Other 1998-2001 tank/engine combinations use different modules.
- Carter P75028M fuel pump module assembly
2002-2003 Dodge Ram 1500 applications represented by Carter P75028M; verify 26-gallon tank, engine and OE number.
- Carter P76259M fuel pump module assembly
2004-2006 Dodge Ram 1500 gasoline 3.7L, 4.7L or 5.7L with 26-gallon tank and matching engine VIN/connector; not 34/35-gallon tanks.
- Agility 4011439 / Carter P76846M fuel module assembly
2007 Dodge Ram 1500 applications cross-referenced to Carter P76846M and Mopar 68004489AA; use the retailer engine selector and confirm tank capacity/OE label.
- Genuine Mopar 68027917AE fuel pump and level-sender module
Selected 2008 Dodge Ram 1500 SLT/ST regular- and quad-cab 3.7L, 4.7L and 5.7L applications shown; confirm cab/bed, tank and VIN because several other 2008 modules exist.
- Delphi FG0889 fuel pump module assembly
Confirm VIN, fuel type and OE label; not flex-fuel module 68050948AB.
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Sources for this issue (2)
Toyota 4Runner · 2003–2009
Chevrolet Corvette · 1984–1996
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P0461 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0461 mean?
P0461 stands for "Fuel Level Sensor 'A' Circuit Range/Performance." P0461 means the powertrain control module sees a fuel-level sensor signal that is implausible or doesn't change as expected — for instance, the reading stays fixed while fuel is consumed, or it moves erratically. The fuel level sensor (sending unit) in the tank reports how much fuel remains, and this data is also used by the EVAP system for certain leak monitors. Typically this only causes an inaccurate fuel gauge or skipped emissions tests rather than drivability problems. It is a low-urgency issue but worth fixing for an accurate gauge.
What are the most common causes of P0461?
The most common causes of P0461 are: Faulty fuel level sensor / sending unit in the tank, Worn or dirty sending-unit resistor card or float, Wiring or connector problems to the sending unit, Corrosion at the fuel pump module connector, Stuck or damaged float arm, Poor ground for the sensor circuit, Instrument cluster or PCM fault (less common). The specific cause varies by vehicle.
How much does it cost to fix P0461?
Repair costs for P0461 range from $30 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by P0461?
Au7o has documented P0461 across 32 vehicle models from 11 manufacturers: Chevrolet, Ford, GMC, Infiniti, Jeep, Mazda, Nissan, RAM, Toyota, Volkswagen, Volvo.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.