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gas tank sender wire ??
#1592661
03/14/14 12:35 AM
03/14/14 12:35 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
OP
I Live Here
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OP
I Live Here
Joined: May 2003
Posts: 15,487
Florida
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ok need to know how the 85 sender works with 2 wires. is 1 wire a ground since the tank is plastic and no clip on grounding strap from sender tube to metal fuel line. on of the wires has a tracer down it the other does not. could I take a test light and check them to see if it is a ground or a hot wire with key on? the sender in the new tank is supposed to be correct ohms for the dodge gauge but only has the 1 stud/terminal. thanks 
Last edited by scratchnfotraction; 03/14/14 12:38 AM.
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Re: gas tank sender wire ??
[Re: scratchnfotraction]
#1592662
03/14/14 01:02 AM
03/14/14 01:02 AM
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Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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My 81 FSM shows 2 wires for the sending unit. A white wire for the ground and a light blue wire for the sending unit power.
I am truckless..
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Re: gas tank sender wire ??
[Re: scratchnfotraction]
#1592664
03/14/14 12:15 PM
03/14/14 12:15 PM
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Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Quote:
looks like mine is a light blue with black tracer and a yellow wire.
testing with a test light and key on??? does that tell me the hot from ground?
Yeah, it should. A DVOM would be better though.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: gas tank sender wire ??
[Re: Guitar Jones]
#1592665
03/14/14 12:21 PM
03/14/14 12:21 PM
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Joined: Oct 2011
Posts: 516
ND
dodgedon
mopar
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mopar
Joined: Oct 2011
Posts: 516
ND
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No, I dont think it should... The yellow wire is a ground. It goes to the rear on left frame rail. The blue goes to the gauge. If you ground this wire the gauge would swing to full. The gauge gets its power from the back of the dash. 5 volts. The sender limits the amount of ground to move the needle.
67 Charger 383 auto
75 Dodge CNT 800 CAT Diesel
2012 Ram Crew cab 5.7 4x4
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Re: gas tank sender wire ??
[Re: poorboy]
#1592667
03/15/14 02:08 AM
03/15/14 02:08 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
OP
I Live Here
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OP
I Live Here
Joined: May 2003
Posts: 15,487
Florida
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Quote:
If you ground the blue wire with a test light, you should get a dim pulsating light from the test light, and the gauge should go to full. Gene
got it hooked up,blue with tracer was the sender wire, yellow was the ground.
gauge is working but does not seem to be corret. but close.
I did not ground the yellow wire, so I will go back and ground that to the tank/bolt just for good measures.
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