P0460: How to Diagnose & Fix — Fuel Level Sensor Circuit Malfunction
4 vehicles · 4 makes · $30-$900 repair
How to diagnose and fix P0460: 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)
Ford Freestar · 2004–2007
The fuel gauge on the Freestar reads erratically, sticks at one level, or pegs empty because the resistor card in the in-tank fuel level sender — part of the fuel pump module assembly — becomes contaminated by sulfur compounds from the gasoline. The sulfur deposits foul the contact track so the float's position no longer translates into a correct resistance, and the cluster shows nonsense. Owners run out of fuel with the needle showing a quarter tank. It is a fuel-system component failure, not a cluster failure, and replacing the instrument cluster does not fix it.
Common Symptoms
- Fuel gauge stuck at full or at empty
- Needle jumps erratically while driving
- Low fuel light on with a nearly full tank
- Running out of fuel with fuel indicated remaining
How to Fix
Try the documented detergent-cleaning route first. If three treated tanks do not restore a stable gauge, test the sender circuit and replace the confirmed sender/module branch rather than assuming the fuel pump failed.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Chevron Techron Concentrate Plus complete fuel-system cleaner, 20 oz$17
Gasoline-engine first-step cleaner named by the repair.
- Genuine Ford 1F2Z-9A299-AA fuel-tank sender assembly$37
2004-2005 Ford Freestar 3.9L or 4.2L with AX4N, after sender-circuit diagnosis. Does not cover 2006-2007; that OEM sender is discontinued and is intentionally not linked.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (2)
Volvo V50 · 2005–2011
The Volvo V50 fuel pump module located inside the fuel tank can fail, causing starting issues and stalling. The fuel level sender can also fail separately, causing inaccurate fuel gauge readings.
Common Symptoms
- Long cranking before start
- Stalling at low fuel levels
- Inaccurate fuel gauge
- Loss of power under load
- Whining from fuel tank area
How to Fix
Sources for this issue (1)
Peugeot 206 · 1998–2012
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P0460 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 P0460 mean?
P0460 stands for "Fuel Level Sensor Circuit Malfunction." This code means the powertrain computer sees a problem in the fuel level sensor circuit, the sender unit inside your fuel tank that tells the gauge and computer how much fuel is present. The reading may be erratic, stuck, or not changing as fuel is used, which the computer flags as a malfunction. While it mainly causes an inaccurate or erratic fuel gauge, the computer also uses fuel level for some emissions (EVAP) tests, so it can affect monitor readiness. It generally points to the sending unit or its wiring rather than the engine itself.
What are the most common causes of P0460?
The most common causes of P0460 are: Faulty fuel level sending unit (float/sensor) in the tank, Corroded or worn sensor resistor card, Damaged or shorted wiring to the fuel level sensor, Loose or corroded connector at the tank or harness, Stuck or broken float arm, Poor ground in the fuel sender circuit, Faulty instrument cluster or PCM (less common). The specific cause varies by vehicle.
How much does it cost to fix P0460?
Repair costs for P0460 range from $30 to $900, depending on the vehicle and root cause.
Which vehicles are affected by P0460?
Au7o has documented P0460 across 4 vehicle models from 4 manufacturers: Ford, GMC, Peugeot, Volvo.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.