darth_linux
Well-Known Member
So I just today got my fuel gauge working again in my '66 Newport by changing out the float. While things were apart, I took note of the fuel gauge with the float set to "full" and "empty," noting that the gauge read just over a quarter for "full," and just about an eighth for "half." I ran the tank to empty in order to do the job, so I added a gallon from a gas can, and then went to the corner gas station and added 12 more gallons, for 13 total, or just about "half." Much to my surprise, when I started the engine, the fuel gauge rapidly rose to the "halfway" point, and then slowly started falling, not to the 1/8 point as expected, but closer to the 1/4 point.
It would appear my fuel gauge reads completely correct for the first 5 seconds and then falls to about 50% of the expected value.
Has anyone observed this before? The sending unit is a MoPar 2580624, which came up as "correct" for 65-66 C Body. Not sure if it's original, or just a factory replacement, but it's not from China . . . . as far as I know.
It would appear my fuel gauge reads completely correct for the first 5 seconds and then falls to about 50% of the expected value.
Has anyone observed this before? The sending unit is a MoPar 2580624, which came up as "correct" for 65-66 C Body. Not sure if it's original, or just a factory replacement, but it's not from China . . . . as far as I know.