How To Repair Fuel Gauge Sending Unit

How to Fix a Stuck Fuel Estimate

past Dwight Malone

Adrián González de la Peña/Demand Media

A stuck fuel approximate on your vehicle tin can not only be abrasive, simply also require you to go along track of how many miles you've driven since your final make full-up to forbid you from running out of gas. A fuel gauge works through a series of electric connections from the sending unit to the gauge cluster, and when one of these connections malfunctions, and so does the fuel guess. With a few basic tools and a lot of patience, you can troubleshoot the problem yourself and avert a costly repair.

Footstep 1

Turn the ignition on and off a few times, and watch the needle on the fuel gauge to see if it moves. If it doesn't, you virtually likely have a blown fuse that needs to be replaced. The fuse box volition either be located under the driver's side nuance or in the engine compartment, and so consult your owners manual to pinpoint the location so yous can replace the fuse.

Footstep 2

Test the grounding wire on the fuel tank'south sending unit, which is attached to your vehicle's fuel tank. To do so, attach the negative jumper cablevision to the car's frame, and the positive jumper cable to the grounding terminal of the sending unit. If the fuel gauge works when the jumper cables are continued, then the grounding wire on the sending unit of measurement needs to be replaced.

Step three

Disconnect the wiring fastened to the fuel sending unit so wait at the fuel gauge. If the gauge is now giving you an empty reading, the fuel judge is faulty and should be replaced. If the approximate gives y'all a full reading, the sending unit is faulty and should be replaced.

Step 4

Verify that all of the wiring is securely connected to the back of the fuel gauge, which will crave you to remove the dashboard to proceeds access to the musical instrument cluster. The process for doing this varies from vehicle to vehicle, and so consult your owners transmission.

Check the grounding wire on the fuel gauge. To practise so, connect the negative jumper cable to the vehicle'due south frame and the positive cable to the fuel gauge's grounding terminal. Turn the ignition to the on position and look at the fuel gauge. If the gauge is not working, then the grounding wire needs to be replaced.

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