I have a 92 and was wondering if any body new what that gizmo is under the hood on the drivers side fender near the top about a foot away from the fire wall with two wires connected to it?

 

Can you take a Pic?

 

Im goin out on a limb here and goin to say it's the cruise control box!??!?!

 

NOT RIGHT NOW

 

I dont have cruise ,and its only about 3in long by a half in tall by a half in wide id guess you would say

 

Fuel pump resistor. Is it white ceramic?

 

Me too. Looks like an old Ballast Resister from the old Mopar days to me. It looks like a resistor. Is it??

 

We need pics to confirm.

 

 

yeah going to need some pics in order to tell ya what it is. My 91 doens't have anything like that at all..

 

yeah we need pics........

 

it's the fuel pump resistor as mentioned above. Theres nothing else there with 2 wires going to it. Dont mess with it unless your pump is acting up is my advice.

 

It is the fuel pump resistor.

And it is ALMOST exactly like the ballast resistors from the old Mopars.

I believe there is a resistence difference.

AND 2X on the dont mess with it.

 

So, would unplugging it cause the XJ to not run???

 

Yes turns out that it is a ballister resister that is for the fuel pump.to all that said that ,your wright.my jeep would start but die after a few seconds.and that what it was, i was told to check it by unhooking the wires and connect them together and if it stays running thats your problem.thank all