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| Fuel Gage or Sending Unit https://slantsix.org/forum/viewtopic.php?t=35912 |
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| Author: | 73NorthernDuster [ Sat Jun 20, 2009 8:01 am ] |
| Post subject: | Fuel Gage or Sending Unit |
I've got my car running. Here is one of the few problems I am trying to sort out. When I fill the gas tank the fuel gage reads full. When I drive it about 40 miles or so it drops down to about half to 1/4 tank. I was worried that it may be leaking so I filled it up and it only took about 2 gal. of gas. So my thoughts are the sending unit is bad the gage is bad or perhaps the sending unit is not grounded... Any thoughts appreciated....If it's the sending unit any recommendations on a brand or where to get a good quality one. Thanks....my other problems will come shortly unless I have a breakthrough....lol. |
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| Author: | 64conv65hard [ Sun Jun 21, 2009 10:31 pm ] |
| Post subject: | |
sounds like a bad spot on your sending unit, the way i've tested them before is to pull the sending unit, leave the wire on it and ground the sending unit,(i've used a jumper cable from sending unit to frame) move the float up and down real slow and watch your gas gauge (make sure your ignition switch is on) |
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| Author: | Brian [ Mon Jun 22, 2009 6:59 am ] |
| Post subject: | |
Your sending unit float is causing the false readings if your only adding around 2 gallons of gas. The float has some gas in it and is sinking. Very cheap and easy fix. Take a look at it before buying a sending unit. |
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| Author: | 64conv65hard [ Tue Jun 23, 2009 5:12 am ] |
| Post subject: | |
Brian, just curious, if the float was leaking wouldn't it sink and stay sunk? |
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| Author: | dakight [ Tue Jun 23, 2009 5:27 am ] |
| Post subject: | |
not necessarily. If the float is partially filled, it can be at neutral bouyancy and move up and down in the fuel tank, giving false readings. It's certainly worth checking. |
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| Author: | KBB_of_TMC [ Tue Jun 23, 2009 9:17 am ] |
| Post subject: | |
I've seen the tank ground strap break and still have the gauge work off & on... double check that the ground is excellent. |
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