Defective gas tank baffles

The gas tank baffles prevent gasoline from sloshing around in the gas tank. If a baffle is broken or loose, the gas may move more than normal.

Table of Contents

• 1. Symptoms
  • 1.1 Fuel Gauge Fluctuates

Symptoms

Fuel Gauge Fluctuates

If your fuel gauge is moving, especially during acceleration or stopping, the gas may be moving too much in the tank. This is generally caused by a damaged or loose baffle. The gas, being free from obstruction, will produce waves. The peaks and troughs of the wave will cause the fuel gauge to move back and forth.