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2008 Hyundai Santa Fe PO464 Fuel System Issue: No Fuel on One Tank Side

Model: hyundai santa fe Fault Code: P0464 Posted: 2010-01-29 20:16

My 2008 Hyundai Santa Fe with a 3.3-liter engine is showing fault code PO464. I've already checked both fuel floats and confirmed they are functioning properly using a multimeter. However, I noticed there's no fuel on one side of the fuel tank—only about half a tank remains on the fuel pump side. I'm trying to understand how this dual-side fuel system operates in the Santa Fe model. Can someone explain the flow mechanism or point me to reliable technical documentation?

Related fault codes

P0464

Comments (2)

Anonymous 2010-01-30 10:11

The 2008 Hyundai Santa Fe uses a saddle-style fuel tank design where fuel is drawn from one side and transferred to the other before being sent to the engine. This setup relies on gravity and internal baffles for flow control. I recommend consulting the Haynes or Chilton repair manual for detailed diagrams of the fuel system layout.

Anonymous 2010-02-02 19:50

Thanks for the clarification! I recently replaced the fuel pump assembly, and the vehicle has been running smoothly since then—no more PO460 errors or fuel flow issues.