1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

gas gauge inop

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Old 01-12-2008, 01:03 PM
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gas gauge inop

my gas gauge does not work. i have spent many hours trying to trace wires, fuses etc. is there a cheap after market gauge i can mount in my truck and by pass the old one? jeff
 
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Old 01-12-2008, 06:46 PM
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The gas guage runs on a ground, unlike everything else which is powered so it isn't fused... If you make sure the tank and guage are grounded well and the wires are good to the guage it should work if the float is good.
 
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Old 01-12-2008, 08:43 PM
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Originally Posted by TNT1968
The gas guage runs on a ground, unlike everything else which is powered so it isn't fused... If you make sure the tank and guage are grounded well and the wires are good to the guage it should work if the float is good.
The float on the sending unit is the culprit most of the time when the gas gauge doesn't work.

It's made of two pieces of copper soldered together. Solder flakes off, gas seeps in...float slowly settles to the bottom of the tank.

The same float fits all Ford trucks & cars: 1957 thru 1979, and is still available from Ford, NAPA, others.

C0AZ-9202-B .. Float

C1TF-9276-A .. In-cab Gas Tank Sending Unit Gasket

The entire sending unit is also still available from Ford (it comes with the float & gasket).

The sender fits all in-cab gas tanks from 1961 thru 1977: D7TZ-9275-G

From FTE sponsor DIRECT FORD PARTS (Gaudin Ford-Las Vegas NV) > >

> > D7TZ-9275-G = Ford suggested retail price: $87.98 / FTE member net: $62.19

> > C0AZ-9202-B = Ford suggested retail price: $6.99 / FTE member net: $4.95

> > C1TF-9276-A = Ford suggested retail price: $4.67 / FTE member net: $3.57
 

Last edited by NumberDummy; 01-12-2008 at 08:59 PM.
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Old 01-12-2008, 08:58 PM
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Has anyone every try resealing their float with a product like Seal- All? Its a gas resistent type product; I have seal a pressure washer two piece tank with it; and ran the pressure washer within 4 hours with no leaks.

Mitch
 
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Old 01-12-2008, 09:02 PM
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Originally Posted by Customcab
Has anyone every try resealing their float with a product like Seal- All? Its a gas resistent type product; I have seal a pressure washer two piece tank with it; and ran the pressure washer within 4 hours with no leaks.Mitch
If the two piece copper float (which costs a little less than 7 bucks list) has gas in it, it will have to be drained...accomplished by taking it apart.

Is it worth saving 7 bucks to go thru all that labor?

And...if you buy the float from a FTE sponsor, the price drops to: $4.95.
 
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Old 01-12-2008, 09:25 PM
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Bill; I copy your numbers and truthfully havn't found only the float to purchase; I always see the complete assembly for around $50. I would admit I've haven't research to indepth for a float; but will for my 68 model.
Thanks as always;
Mitch
 
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Old 01-12-2008, 09:31 PM
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Originally Posted by Customcab
Bill; I copy your numbers and truthfully havn't found only the float to purchase; I always see the complete assembly for around $50. I would admit I've haven't research to indepth for a float; but will for my 68 model.Thanks as always;Mitch
Mitch, the float is still available from your local Ford Dealer, as is the gasket, and the sender.

Post #3 has all the info.

C0AZ-9202-B .. Float / Ford list price: $6.99.
 

Last edited by NumberDummy; 01-12-2008 at 09:35 PM.
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Old 01-12-2008, 09:34 PM
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As always Bill; your on top of your A game; I've copy those numbers and will try them next week; if they don't hopefully Napa etc can cross-reference those numbers.

Mitch
 
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Old 01-12-2008, 09:39 PM
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take the wire off the tank sending unit and ground it with the key on if guage moves
the sensor is bad if it dosent it is eithier the wiring or the guage if it is the wiring or guage you can hook a om meter to the wire at the sensor and at guage to check check for a break in the wire if it checks out ok the guage is bad
 
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Old 01-14-2008, 06:54 AM
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unfortunatly the wiring is well, a mess. the gauge worked when i got the truck. i had to repair the instrument panel and still need a speedomater cable. any way when i reinstalled the panel i could not get the wiring right. i spent several days trying to get it straight. i just want to by pass the old gauge and put in a after market replacement. of some kind. is that possible? jeff
 
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Old 01-14-2008, 08:28 AM
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Most aftermarket guages dont use the ford sending Ohms. You must get the correct guage to match the sending unit.

Many companies make Guages.

Do your other guages work? You may have knocked off the pulse wire from the regulator and this will also cause the guage to not function. Ford guages do not work off the direct method they ground and are fed power through a small power regulator attached to the back of the housing. This may be your issue.

Garbz
 
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Old 01-14-2008, 09:40 AM
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Originally Posted by runinbear
unfortunatly the wiring is well, a mess. the gauge worked when i got the truck. i had to repair the instrument panel and still need a speedomater cable. any way when i reinstalled the panel i could not get the wiring right. i spent several days trying to get it straight. i just want to by pass the old gauge and put in a after market replacement. of some kind. is that possible? jeff
What's wrong with your speedometer cable, is the housing bad, or is the inner core broken?

Autoparts stores sell a universal inner core replacement kit.

Measure the length of the old core, cut the new core to match and install it in the old housing.

Don't forget to grease the cable lightly with white lithium grease.

When the core dries out, it will bind in the housing, and snap.

Is the speedo driven gear at the end of the cable stripped?

Still available from Ford.
 

Last edited by NumberDummy; 01-14-2008 at 09:44 AM.
  #13  
Old 01-14-2008, 06:09 PM
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thanks guys. well i didnt know what that box on back of the panel was. i guess this is the regulator. i tried for hours to figure out how it connects and to what.
but to no use. the fuel gauge, and temp dont work. neither does the speedometer. i put an after market set of gauges on the dash. temp, oil, voltage. i also mounted a tach. but that is all i have. the spedo cable was broken inside the housing. i bought a replacement from napa, but it would not go inside the housing. the truck had a com tranny original. someone else pulled it and put a 4 spd in it. the spedo housing was connected fine.and i have it out but i cant find a replacement spedo cable housing. i would like to fix this though. i had to make a measuring stick to check my fuel level in the tank. and have a gas can in the back with a couple of gallons in it for running out. i would like to get the darn gas gauge working if i can. jeff
 
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