mbsbl16 Posted July 12, 2016 Share Posted July 12, 2016 I have an '09 Subaru Impreza and recently encountered a problem where the fuel gauge will read half full, or full (depending on how much gas I actually have in the car), but the gauge will drop to empty suddenly when driving, stay like that for a few minutes, and then go back up to the correct reading. This will happen on and off every 5-10 minutes while driving, but the check engine light has not come on. Would this be a sensor issue, fuel pump issue, or something else? Hopefully someone else here has encountered this issue because Google only shows people the same issue but with a check engine light on or the gauge never going back up. Thanks in advance! Quote Link to comment Share on other sites More sharing options...
Rooster2 Posted July 12, 2016 Share Posted July 12, 2016 This sounds like a wiring problem, most likely a bad grounding wire. The check engine light will not come on with a problem like this. Check for any rusty wire connection from the gas tank going forward. Easiest to do this, with your car up on a lift. Not likely this is a sensor or fuel pump issue, simply a wire going to ground that has a bad connection. 1 Quote Link to comment Share on other sites More sharing options...
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