Fuel Level Specifications

2005 Chevrolet Impala Base, 3.8 KSECTION Fuel Level Specifications

The information in this table is intended for use with the J 33431-C  Signal Generator and Instrument Panel Tester. See Special Tools . The fuel level sensor values represent the test values to be used on the Signal Generator to drive the fuel gage display to the indicated positions. Vehicles that require more than one fuel level sensor calculate gage position from many possible resistance combinations of fuel levels between the two tanks. Therefore, the values in the table may not correlate directly to readings taken from the vehicle primary or secondary sending units.

The values in the table are approximate values based on information obtained from properly operating vehicles. Actual results may vary slightly.

Fuel Level Specifications

Fuel Gauge Display Resistance Fuel Level Fuel Remaining
E 40-62Ω 0-9% 0-4.9 L (0-1.3 gal)
1/4 95Ω 29% 18.5 L (4.9 gal)
1/2 125Ω 49% 31.8 L (8.4 gal)
3/4 156Ω 70% 45.0 L (11.9 gal)
F 200-230Ω 90-100% 58.3-64.3 L (15.4-17.0 gal)
Low Fuel Indicator On 69Ω 13% 8.3 L (2.2 gal)
Low Fuel Indicator Off 87Ω 23% 15.1 L (4.0 gal)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.