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1980 911 SC Fuel Gauge

Fuel System

Vehicle Information: Model: 911 SC; Year: 1980; Body Type: Targa; Total Mileage: 124,400;

The fuel gauge provides unreliable readings when less than 1/4 tank. Sometimes it reads nearly 1/4 tank, but sudden braking at 3-4 mph may cause the needle to drop to close to empty, then pop back up shortly thereafter. Sometimes it appears to read accurately (low and then I'll notice the needle has moved up). The low fuel inidcator seems to be acting appropriately, as best I can tell. I previously shipped the gauge to specialists where no problem was found. This has been a consistent for several years. Any ideas on what else should be investigated.

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