Odd fuel gauge behavior
I have a year 2000 Chevy Tahoe Z71 that is showing some very odd behavior with its fuel gauge. It is annoying because a few days ago the vehicle ran out of fuel, so I would like to fix the problem. Perhaps someone here could make some suggestions on the subject. :-) Please.
When the vehicle engine is running, and the automatic transmission is in PARK or NEUTRAL, the fuel gauge jumps around--- anywhere between completely full to completely empty. When I put the transmission in to DRIVE, the fuel gauge stops where ever it was when I do so. If the needle is near empty when I put the transmission into DRIVE, the needle stops near empty; ditto if the needle is near full, or in the center, etc.
Why in the world would the automatic transmission have any connection at all with the fuel gauge?