Kriskey
NAXJA Forum User
- Location
- Connecticut
Looking for some advice on an an issue with my fuel gauge/sending unit.
The fuel gauge on my 1998 XJ never worked since I’ve owned it. I always figured it was a bad sending unit since it was on its original or , at least, a very old, fuel pump. Recently I had to change the fuel pump and I got a replacement Carter pump. When I climbed under the back and poked around I found that the insulation on the sending unit wires had cracked and the wires were rotted out and broken off right at the connector.
I wasn’t able to find a pigtail that had the same connector as the OEM fuel pump so I cut off both sides of the connector and used a generic 4 pin waterproof pig tail. I dry fit it and after I saw the gauge worked and the jeep started, I soldered it up. Everything was nice and tight with heat drink tubing and wrap.
After I was done I went to the gas station and the gauge went from 1/3 of a tank to full but it took 15 gallons so there was no way it should have shown 1/3. 150 miles into the full tank the fuel gauge is still reading almost full. I’d expect it to be at 1/2.
Any thoughts? My biggest concern is that I’ve got the polarity swapped on the sending unit wires but I really
The fuel gauge on my 1998 XJ never worked since I’ve owned it. I always figured it was a bad sending unit since it was on its original or , at least, a very old, fuel pump. Recently I had to change the fuel pump and I got a replacement Carter pump. When I climbed under the back and poked around I found that the insulation on the sending unit wires had cracked and the wires were rotted out and broken off right at the connector.
I wasn’t able to find a pigtail that had the same connector as the OEM fuel pump so I cut off both sides of the connector and used a generic 4 pin waterproof pig tail. I dry fit it and after I saw the gauge worked and the jeep started, I soldered it up. Everything was nice and tight with heat drink tubing and wrap.
After I was done I went to the gas station and the gauge went from 1/3 of a tank to full but it took 15 gallons so there was no way it should have shown 1/3. 150 miles into the full tank the fuel gauge is still reading almost full. I’d expect it to be at 1/2.
Any thoughts? My biggest concern is that I’ve got the polarity swapped on the sending unit wires but I really