Fuel Gauge Reads Empty 24/7

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07-07-2016 | 08:49 PM

mikewcallahan3

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Newbie

Joined: Jun 2016

Posts: 19

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From: Winston Salem, NC

Year: 1993

Model: Cherokee

Fuel Gauge Reads Empty 24/7

I have a 1993 Xj and my fuel gauge reads empty 24/7, what could possibly be causing this? Anyone else experience this before that could help me out?

(And yes, I have filled up the tank lol)

Thanks,
Mike

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07-07-2016 | 10:27 PM

Mr. Pink

CF Veteran

Joined: Oct 2012

Posts: 1,127

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From: Capac, Mi

Year: 1997

Model: Cherokee

Engine: 4.0L

bad sending unit...

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07-08-2016 | 07:46 AM

BlueRidgeMark

CF Veteran

Joined: May 2012

Posts: 7,964

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From: Lost in the wilds of Virginia

Year: 1998 Classic (I'll get it running soon....) and 02 Grand

Model: Cherokee (XJ)

Engine: 4.0

Yep. that's the most likely cause. Could also be bad wiring between the sending unit and the gauge, or a bad gauge.

But the sending unit is the prime suspect. Grab a wiring diagram for the beast and find out which wires in the fuel pump harness are for the sending unit. You should be able to do some testing to see if you can get the gauge to register.

Does your year have the pump in the tank? If it does, you might as well replace the whole unit, if it turns out to be the sending unit.

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