 how do you test a fuel level sender? |
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| GaroldShaffer |
 Feb 15 2006, 07:07 AM
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#1
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You bought another 914?  Group: Benefactors Posts: 7,628 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None 
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So in my statsh of parts I found a fuel level sending unit, it looks in good shape but how do you test it out of the car?
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| SLITS |
Feb 15 2006, 07:30 AM
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#2
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
Hook it to a guage, supply power, move float up, watch guage go from E to F. It's a matter of variable resistance.
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| GaroldShaffer |
Feb 15 2006, 08:40 AM
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#3
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You bought another 914? Group: Benefactors Posts: 7,628 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None
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simple enough, thanks!
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| 914Sixer |
Feb 15 2006, 12:48 PM
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#4
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914 Guru Group: Members Posts: 9,016 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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The first thing to do is shake it and listen if the float slides up and down inside the tube. If you do not hear this it will not work. You can very gently remove the tube and repair the float. Then you can do the resistance test.
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| SLITS |
Feb 15 2006, 01:03 PM
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#5
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
Now Mark be careful....you know you should not shake up a Kraut...just look at Ahndie..... (IMG:http://www.914world.com/bbs2/html/emoticons/icon8.gif)
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| lapuwali |
Feb 15 2006, 01:08 PM
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#6
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
If you have a multi-meter, measuring ohms across two of the pins should give you infinite resistance with the sender held upside down (float at the "top"), and 0 resistance with the sender held upright. This is the light switch. Two other pins will give you a variable resistance from 5-10ohms with the float at the top, and 70-90 ohms with the float at the bottom.
There's a description of which pins to what in my blog. |
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| GaroldShaffer |
Feb 15 2006, 02:19 PM
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#7
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You bought another 914? Group: Benefactors Posts: 7,628 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None
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Thanks! (IMG:http://www.914world.com/bbs2/html/emoticons/beer.gif)
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