Join Date: Dec 2015
Location: Los Angeles, California
TheCraftsman is offline
Fuel Gauge Showing Less Than Correct Amount
Hi all. My first post! Wow!
I apologize ahead of time, but I'm not quite sure what section this belongs in.
I have a 1986 S-10 pickup 2.8L V6.
Last week my gas gauge started acting wonky.
I was driving and noticed that it was on E. I thought I should have had more gas than that, but not knowing if I now had a leak in it, I filled it up.
It only took about $11 (figure about 3.5 gallons, 13 gallon tank, right?), but it now showed full. I thought that was weird, but hey, whatever. Anyway, I didn't pay any more attention to it til a couple days later.
I was driving and I happened to look at it and saw that it said that I had just a hair over 1/4 tank. I knew that was wrong because I did not have a leak.
So I'm driving down the road a few minutes later, and all of a sudden I notice it jump back up to a little over 3/4 tank (the correct level).
But a couple minutes later it drops back down to about 1/4 tank. Yesterday I started it up and it was showing the correct level again. for a couple miles. Then it dropped back down to a bit less than 1/4 tank (because I had used a little gas since the day before).
It seems to be showing the correct amount of gas USAGE, but not always the correct level.
I should mention that about 4-5 years ago, something happened inside the tank (someone said that a baffle that prevents sloshing movements probably came loose) and that now I get very small movements of the gauge caused by the gas moving around in it. Never had any problems with it though.
Also, I should mention that if I turn the key off, the gas gauge always stays where it was when running. But if I turn my lights on it drops down to E.
Also, if I turn my lights on while running, it drops down the smallest, smallest bit. It has done this for years. Never had any problems with that though either.
Anyway, taking a guess, I think my sender is probably OK, but I probably have a problem with the gauge or the wiring.
As you know, you can't get to the tank easily at all!
Would anyone have any thoughts or insight about this please. Thank you!