P0463 on a Jeep: Causes, Fixes & Repair Cost

🟢 Low severity · drivable

Safe to drive, but the fuel gauge may be wrong — track your miles or fill up often so you don't run out of gas.

What P0463 means on a Jeep

On a Jeep, P0463 means the fuel level sender is sending voltage that's too high, so the computer reads the tank as full. The sender is built into the fuel pump module on most Jeeps, and its resistor strip wears with age. The engine runs fine; the fuel gauge is what reads wrong.

Is P0463 common on Jeeps?

P0463 shows up on higher-mileage Jeeps like the Wrangler, Grand Cherokee, and Cherokee. Sender wear and connector corrosion are the usual causes, and off-road use can add extra grime and vibration to the wiring. It's a gauge issue, not a drivability issue.

Commonly reported on: Wrangler, Grand Cherokee, Cherokee.

Symptoms

Check engine light on
Fuel gauge stuck on full
Fuel gauge reads wrong or drops suddenly
No change in how the vehicle drives

Common causes

most common: Worn fuel level sender in the fuel pump module
common: Corroded connector at the fuel pump module
common: Short or damaged wiring in the fuel level circuit
less common: Faulty instrument cluster reading

How to fix it

Fix	DIY?	Typical cost
Check the fuel level sensor wiring and connector	Yes	$0–40
Replace the fuel pump module with sender	Mechanic	$250–550
Repair a short or broken wire in the sensor circuit	Mechanic	$80–200