Fuel gauge woes

radarwhiz · #1 03-04-2011, 02:06 PM

Having fuel gauge problems. This is the car I just got last week. Previous owner said it would indicate full but down below about half it would get pretty flaky. Attached image is the part I swapped off my donor car who's gauge worked fine. Now gauge does nothing at all, warning light still works though. Is there more that should be swapped? Or maybe the problem is elsewhere? Any help is appreciated.

Roldie · #2 03-04-2011, 04:11 PM

could be the floater.. Im having the same problem with mine. it works when it wants to, but i havent gotten the chance to work on it.

radarwhiz · #3 03-04-2011, 04:58 PM

Ok. Just found out there is are two floats. So is the signal that's sent to the gauge some sort of combination of the two? And maybe I just swapped the wrong one?

radarwhiz · #4 03-04-2011, 05:03 PM

Along with a float on each side there is this (attached image) with some type of sensor in it. what is it and does it affect the fuel gauge?

radarwhiz · #5 03-04-2011, 07:40 PM

Still haven't quite figured out exactly how this circuit works but I swapped out the cluster from the donor and it seems to be working now. I'll see once I run some gas out if it will move how it should. Of course I had to swap odometers too. I like how each gauge is individually removeable, makes it pretty easy.

icingdeath88 · #6 03-04-2011, 11:32 PM

The two floats: One is for the gauge and one is for the gas light to come on.