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Wiring gas tank question

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Old May 26, 2009 | 07:24 PM
  #1  
PNWJeep's Avatar
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Year: 1987
Model: Cherokee
Engine: 4.0L
Default Wiring gas tank question

OK, old tank had a hole so I grabed my spare out of an 86 xj.

old

new


3 wire old and 2 wire new. Ideas ? one is ground im sure, 2 wire new one is brown larger and black smaller, 3 wire is red black and orange.

Thanks
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Old May 26, 2009 | 07:28 PM
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From: Punxsutawney Pennsylvania
Year: 1988
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2 different years aye?... hmm looks like you gotta find out what the red and orange do.. hopefully someone will chime in
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Old May 26, 2009 | 07:30 PM
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JeepingDan's Avatar
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can't you just swap the sending unit over?
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Old May 26, 2009 | 09:01 PM
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Did the '86 tank come out of a carbed Jeep? That would explain the wiring differences. No in-tank fuel pump. I'm just guessing here. Two wires are for fuel gauge signal and ground. Three wires are for fuel gauge signal, fuel pump power, and ground. JMO

Last edited by ol"blue; May 26, 2009 at 09:05 PM.
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Old May 26, 2009 | 09:05 PM
  #5  
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Originally Posted by itzdan420
can't you just swap the sending unit over?
it's worth a try. may be different sizes though
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Old May 26, 2009 | 09:45 PM
  #6  
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Dude, just change the sending units and use your old one.
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Old May 26, 2009 | 10:12 PM
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PNWJeep's Avatar
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ol"blue looks like your right on, i feel dumb after posting. Carbed to FI. One FP from the carbed tank but the FI tank had an in tank pump either the low or high presure pump.

Anyhow I'm going to see if they can switch over (i.e. same sized holes)

Thanks for posting all.

James
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