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#1 |
Registered User
![]() Join Date: Jan 2001
Location: Katy, TX...but the love of my life resides in Dublin,OH.
Posts: 1,408
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Fuel Guage reads past full all the time?
Ok I looked behind the seat and only have one tan wire coming off of the sender. The tan wire that comes out at the top of the fuse block that says fuel guage is cut off about 6" from the fuse block... where does it go?
EDIT: I followed the tan wire from the sending unit and it goes past the floor mounted dimmer switch...there is an electrical taped splice... then it goes out the firewall and what looks like into the back of the fuse block... how is this supposed to be?? Last edited by Suicide-D; 10-25-2003 at 07:49 PM. |
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#2 |
huh?
![]() Join Date: May 2000
Location: Washington, Illinois
Posts: 5,692
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Wow, that's strange. Do you have underbed tanks that had senders or something? Maybe that's why the wire is going out of the cab? My fuel gauge wire goes from the sending unit through that light brown (tan) wire, to the "fuel gauge" spot on the fuse box. Try hooking the sender to that and see what happens.
Good luck.
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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#3 |
Registered User
Join Date: Apr 2003
Location: missouri city, tx
Posts: 4,486
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i have the same problem. i think its the sender on mine. the tan wire goes off the sender and under the bondo rocker. it was cut before the rocker and we taped it but nothing happened.
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70 longbed 496/th400/Ford 9" |
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#4 |
Merciless Butcher
Join Date: Oct 2003
Location: CC Nevada
Posts: 1,447
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I once had the same problem. Turned out to be a bad sending unit. Took it apart and looked at it. There are some very fine wires wound around what looked like a small piece of white plastic. A brass tab makes contact with the fine wires. One of the fine wires was broken. Installed a new sending unit and it worked just fine.
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Your Bought And Sold....I Got Your Soul! |
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#5 |
someday
![]() Join Date: Dec 2001
Location: canastota,new york
Posts: 629
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It could be that your sender is not grounded good enough. This will cause your gauge to work but read from about half when its empty and way past full when its full.
good luck, jason
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#6 |
faster, faster, faster
Join Date: Dec 2001
Location: Houston ,Texas ,USA
Posts: 1,354
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The sender wire is just not connected to the propper spot on the fuse box. Or you could just bypass the fuse block all together and just run the wire directly from the tan sending unit wire to the plug on the back of the gauges. Give me a call and I'll WALK you through the diagram to make sure you get it right the first time. We wouldn't want another suicide door incident.lol Here is the link to the diagram, http://www.geocities.com/chevroletc1070/instrum2.html
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I'm going to Law School, wanna debate? It's good practice. |
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#7 |
Registered User
![]() Join Date: Jan 2001
Location: Katy, TX...but the love of my life resides in Dublin,OH.
Posts: 1,408
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ha... no we wouldn't....I'm fixing that now. I'll mess with the sender on sunday
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#8 |
Registered User
![]() Join Date: Jan 2001
Location: Katy, TX...but the love of my life resides in Dublin,OH.
Posts: 1,408
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Well, I must have a bad float / sender or something. I hooked up the wire and it goes to empty and stays. I went and put gas in it to make sure it just wasn't empty... and same result..stays on empty... How big of a pain is it to pull that unit out of the tank?
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#9 |
68cst_ss490
Join Date: May 2001
Location: edmonton,canada
Posts: 1,363
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maybe u r just getting really good fuel economy...nah sounds like maybe a bad ground
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#10 |
faster, faster, faster
Join Date: Dec 2001
Location: Houston ,Texas ,USA
Posts: 1,354
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It's not that hard. That ring on the top is like a pressure slip ring. Use a screw driver to tap it around the opposite of the tabs it is up against now and it will pop up when it gets to the openings. If not, just gently pry it up with a screw driver. Then it's ready to pull out.
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I'm going to Law School, wanna debate? It's good practice. |
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#11 |
Registered User
Join Date: Feb 2001
Location: Nikiski, Alaska
Posts: 477
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FYI: When a fuel level gauge always reads "full", the connection is broken somewhere. Perpetual "empty" means a short to ground before the sender.
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Just as if I knew what I was doin' |
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#12 |
Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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Test the sender before you replace it....pull it out, and hook up a ohm meter to the connection for the unit, and move the float up and down. The resistance should change....i'm thinking 30-90ohms total.
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#13 |
Registered User
![]() Join Date: Jan 2001
Location: Katy, TX...but the love of my life resides in Dublin,OH.
Posts: 1,408
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the float is full gas.... my multimeter was acting stupid but the float is definitely full. the needle on the meter was jumping all over the place
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#14 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,284
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A new brass float will run you $5 from any vendor.
Last edited by '68OrangeSunshine; 10-28-2003 at 05:40 AM. |
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