Yes, on most 2004 Subaru models (including the Impreza, Forester, Legacy, and Outback), the fuel gauge will typically drop to empty when the ignition is turned off. This behavior is normal and part of the gauge design in many vehicles, not just Subarus.
How It Works:
- The fuel gauge is powered by the car’s electrical system.
- When the key is in the OFF position, power is cut off to the gauge cluster, and the fuel needle returns to zero (empty).
- Once you turn the ignition to ON, the fuel gauge gets power, and the needle rises to show the actual fuel level.
Is This a Problem?
No, this is normal operation for most vehicles from this era.
- It’s simply the gauge resetting when there’s no electrical power supplied to it.
- If your gauge doesn’t move when the key is turned on, or shows inaccurate readings while driving, then it could indicate a problem with the fuel sending unit, gauge cluster, or wiring.
FAQs About Subaru Fuel Gauges
1. Is it bad if my fuel gauge reads empty when I shut the car off?
No. This is normal on many vehicles, including Subarus from 2004.
2. What if my fuel gauge stays on empty when the key is on?
That could indicate a faulty fuel sending unit, wiring problem, or an issue with the gauge itself.
3. Do all cars drop to empty when turned off?
No, some vehicles hold the last reading even when powered down, but many reset to empty when the ignition is off.
Final Answer
Yes, on a 2004 Subaru, the fuel gauge typically reads empty when the key is off. This is normal behavior and not a sign of a problem unless the gauge doesn’t work properly when the ignition is turned on.
Also Check:
• Does the Subaru Fuel Gauge Go Down When the Key Is Off?
• Does the Car Need to Be Running to Check Transmission Fluid?
• Does Low Transmission Fluid Cause the Check Engine Light to Come On?
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