Fuel Guage
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Instructor
Joined: Jun 2012
Posts: 212
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I have a stable reading now of about half a tank after cleaning up the sender clip for the wire and relocating the ground.
Not sure if I have half a tank or not though... I have about 4inch of gas when I put a rod in the tank to measure the depth.... Does that sound about half??
Not sure if I have half a tank or not though... I have about 4inch of gas when I put a rod in the tank to measure the depth.... Does that sound about half??
Racer
Joined: Feb 2009
Posts: 330
Likes: 9
From: Las Vegas Nevada
Sounds like less than half to me. How many gallon tank do you have? I have my tank out right now. When I get home I will measure what a half tank is on mine and let you know. May be a little different on yours because of your tank being a little different.
Former Vendor
Joined: Aug 2006
Posts: 76,656
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From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
I have a stable reading now of about half a tank after cleaning up the sender clip for the wire and relocating the ground.
Not sure if I have half a tank or not though... I have about 4inch of gas when I put a rod in the tank to measure the depth.... Does that sound about half??
Not sure if I have half a tank or not though... I have about 4inch of gas when I put a rod in the tank to measure the depth.... Does that sound about half??
If the sender reads 0-90 ohms now.. then you may have a bent float arm. You'd just have to play with this to get it tweaked in.
Racer
Joined: Feb 2009
Posts: 330
Likes: 9
From: Las Vegas Nevada
Normally I would replace it but I want to eventually go to a in tank electric fuel pump with sump and possibly an aluminum tank. So, for now I fixed the problem by putting resistance in parallel with the sending unit resistance. Tested good laying on the floor behind the car. Can't wait to see if it works when I get it all together.
Racer
Joined: Feb 2009
Posts: 330
Likes: 9
From: Las Vegas Nevada
The black wire is sodered to other ground wires inside the harness. There are two areas of the rear of the body harness that have this multi-ground configuration. One is just a little way into the car (drivers side corner of storage compartment) and the other one is further down the harness and is all sodered together with the ground wires for all the lights. Then there is one wire that comes off the multi-ground just inside the car that screws to the frame under and behind the antenna. On my car (75) the ground wire for the gauge (black wire) goes to the multi-ground closer to the end of the harness. I have pics if anyone needs them.
