Originally Posted by SkeeterD
Just got off the phone with the Dealer. They stated minimum of three hours ($250 or so) just to diagnose. Is this (the fuel gauge) a common problem? If so, is there a specific part that anyone knows of that may be worth trying?
Next question. Is the onboard computer probable range linked directly to the fuel gauge or is it separate? If it is separate, how accurate is the probable range?
I too have an issue with the fuel gauge, and from the input on this very forum, I think I know what it's not, but am still looking for what it is. I was told that it could be an issue with the fuel vapor canister, causing a small collapse of the fuel tank itself, which caused the fuel gauge to get a wrong reading. I was also told that the OBC was not affected by this, although I have yet to fully understand how this is so.
On my 00 LT, I have looked at the tank in it's naked glory and I would swear it looked fine, although again it's hard to tell to the un-initiated as the tank already has dimples all over it.
If that's the case, and the tank is fine, then it's probably the sender unit or the intake tube issue (tweaking the intake tube with the gas pump nozzle). Those two things sound like something that could happen during the last 103 thousand miles.
After that, I don't have a clue, although I am waiting with beer breath for others with much more knowledge to continue to advise....
Welcome to the forum, by the way. This place is great!