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05-07-2008, 08:13 PM
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#1 |
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Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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poly tank fuel sending unit question
i have installed the poly tank underbed and hooked up the tan wire to the sending unit. put 10 gallons of gas in ,the guage reads 1/2, wich sould be right.but when i turn off the key the guage goes to the full position ? i thought it should go to the empty position like my other cars ?
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70 c10 stepside ,350v8, m-20 4 speed 
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05-07-2008, 09:04 PM
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#2 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: poly tank fuel sending unit question
Ground the sending unit to the frame.(poly tank= no ground)
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer Last edited by jhow66; 05-07-2008 at 09:04 PM. Reason: added |
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05-07-2008, 09:17 PM
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#3 |
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Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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Re: poly tank fuel sending unit question
the sending unit does have a ground wire attached to it,and i do have it grounded to the frame. that's what's confusing me
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70 c10 stepside ,350v8, m-20 4 speed
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05-07-2008, 10:22 PM
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#4 |
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Registered User
Join Date: Feb 2008
Location: Phoenix, Az
Posts: 1,204
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Re: poly tank fuel sending unit question
Is it a 20 gal tank? Do the Ohm's on the sending unit match the ohms for the gauge?
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R.I.P. Scott Kalitta
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05-07-2008, 10:38 PM
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#5 |
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Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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Re: poly tank fuel sending unit question
yea it's a 20 gallon tank, the sending unit came with the tank as a kit. i'll have to borrow an ohm meter to check it
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70 c10 stepside ,350v8, m-20 4 speed
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05-07-2008, 11:17 PM
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#6 | |
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Registered User
Join Date: Feb 2008
Location: Phoenix, Az
Posts: 1,204
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Re: poly tank fuel sending unit question
Quote:
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R.I.P. Scott Kalitta
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05-08-2008, 01:14 AM
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#7 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: poly tank fuel sending unit question
90 ohms for stock unit.
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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05-08-2008, 05:47 PM
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#8 |
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Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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Re: poly tank fuel sending unit question
the meter is saying 30 ohms. what a p.o.s. kit this was. i guess i can live with it or buy a stock sending unit.
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70 c10 stepside ,350v8, m-20 4 speed
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