In this video, I will be discussing in great detail of how GM's fuel level sending circuit works. This circuit will apply to all GM vehicles from the years 1997-2005. Once the circuit operation is known, the diagnostics can be applied to other makes. I feel that you need to understand circuit operation before you can do diagnostics. Later, there will be two other videos to apply the diagnostic procedures learned in this video on a 2000 Buick LeSabre. And finally, once the diagnostics is complete, the repair will be shown in the last video. Enjoy!
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