Currently, my 'Stang has a problem with the fuel gauge on the factory installed instrument gauge cluster.
When the fuel is filled all the way to the top, the fuel gauge does not read. However, when the fuel gets to low, it works again.
I talked to a friend of mine and he said that it either has something to do with the gauge cluster itself (the plastic getting in the way of it reading) or with something within the tank.
There's a module on 'em that goes bad, but I've only heard of it to cause the gauge to not work. My '84 had a module up in the dash that I had to replace in order to get my low fuel light to work. Not sure where it is in the later models though.
I'd suspect that chip behind the dash first. I've seen atleast 5 people go through the whole sending unit thing before replacing that chip and it solving the problem.
I've got the same problem with my 88. This chip that should be checked, is it on the back of the actual gauge cluster?! Or behind the dash itself?! What does it look like?
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