What Causes Inaccurate Fuel Gauge After Replacing a New Fuel Pump Assembly?

1 Answers
SanBrayden
07/30/25 12:07am
Inaccurate fuel gauge after replacing a new fuel pump assembly can be attributed to sensor malfunction, fuel gauge display issues, or differences in the mechanical position of the fuel pump. The specific reasons are as follows: Sensor Malfunction: Sensor malfunction is one of the reasons affecting the fuel gauge's inaccuracy, causing the gauge needle to fail to reach an accurate reading. This issue can only be resolved using professional debugging equipment at a repair shop. Fuel Gauge Display Issues: For fuel gauge display problems, cleaning and wiping the fuel gauge can help, or professional maintenance at a repair shop may be required. Differences in the Mechanical Position of the Fuel Pump: The new fuel pump's mechanical position may differ from the old one, requiring adjustment. A rough adjustment method is to press the reset button on the dashboard after replacing the fuel pump and observe whether the needle is at the empty position, adjusting it until it functions normally.
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