So I've got an '02 MCS. And even though I've got about four or five gallons in the tank my fuel gauge reads empty. And it's red empty pretty much since I got her back and running. I replaced the filter a week or two ago. And it was really black! I've only got about 68,000 miles on this and she's sat for a number of years not being driven. when I pulled the sending unit out slightly to replace the filter I got a look inside and around it. And it was pretty corroded and green and just nasty looking around the metal bits. And the wires down in there pretty much didn't have a protective case around them anymore it had just been eaten away and falling off. I figure this is my problem. But I do also have a little bit of wiring issues. I don't have the ability to take her to a shop so I was wondering what y'alls input is?

 

no photos no comment as it is a waste of my time

 

There is a a common problem with the fuel pump electrical plug, to have corrosion on the plug connecting to the fuel pump/and fuel sender. Unplug it, spray contact cleaner on both ends, brush it and plug it back in. If you have fuel indicated, that is the fix. If not , then the sender may be shot, or other wiring to the gauge.

 

I tried that to no avail there's a wiring thing I'm gonna try next but I may just buy the fuel filter assembly either way. Because I think it needs to be replaced in it's current condition. I can't seem to find one for r53. I don't know if they're all the same or not.

 

There is also a bunch of brown wires under the carpet, near the tunnel, that is a master ground. That may be corroded also and will mess with the gauges and computer in the gauge pod.

 

I know exactly the ones you're talking about. I had some major wiring issues a while back where none of my gauges or anything would turn on so I dismantled the entire interior and went through the wires. If I'm correct. I've got those 3 brown wires Jerry rigged up with and alligator clip connected to a ground plate. And that turns my gauges on. If it slips off the gauges don't turn on or work in any way. And I have no idea how to fix or trouble shoot any of this because I'm not a electrical or wiring guy. It was a bit of luck I even figured out if I grounded them the gauges turn on.