1986 XJ fuel sending unit . . . WHERE ARE THEY???

[the_law_man01]

Greetings all! I'm new to the XJ world, so please bear with me.

I bought a 1986 AMC Jeep Cherokee Pioneer 2.5L TBI for my wife. Turns out, the PO put a fuel sending unit in from a 90s 4.0. So, the fuel tank reads in reverse, and the fuel pressure is too high, overpowers the fuel metering diaphragm, and runs extremely rich. It also has flooded once and left us stranded. Absolutely would not restart because it was flooding fuel into the TB. This is all easy to solve, EXCEPT for the fact that I cannot find a year appropriate sending unit anywhere.

Where are you all finding sending units?

Am I just going to have to deal with modifying this 90s sending unit to work as much as possible?

Thanks for any help you can provide.

 

[Bent]

Fuel tank.

 

[the_law_man01]

Fuel tank.

You sure?

 

[Bent]

That is where the fuel is.
Scroll down to diagram. See #6.

53000575 - Mopar Parts Giant

www.moparpartsgiant.com

 

[JonnyCat63]

Nominated.

I'm just curious. Why the sarcasm to this guy? He asked where can he find a sending unit for his XJ.

Am I missing something? Serious question.

 

[Bent]

I'm just curious. Why the sarcasm to this guy? He asked where can he find a sending unit for his XJ.

Am I missing something? Serious question.

My bad. Fixed.



My FSM and Haynes manual are both showing the same style gauge float for both the TBI & MPI. There is a slight difference in the fuel pump, and retaining bracket at the top of the pump for the TBI unit.

ETA,
It may only be a crossed wire affecting the way the gauge is reading.

 

[lawsoncl]

I thought Renix and HO fuel senders were indeed backwards, with low resistance meaning empty on one and full on the other. I don't recall which was which. Isn't the fuel pressure regulator on the fuel rail on both?

I think the answer here is installing the correct fuel pump and fuel level sensor.