Twice now when traveling down a highway, from a high altitude to a lower, my fuel gage went from 3/4 full to below empty, then return to 3/4. None of the other gages have erratic readings during this time. Anyone notice the same thing happening?
I noticed it happening on a Chevy Trailblazer we dumped a while ago.
Mine does this when cold - doesn't get cold in Houston often but we did have snow on Christmas this year and it was acting funny then.
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