Problem with my 89 carbureted YJ

[Sting67Ray]

Hi, I have a '89 YJ that I have had for 10 years that has a problem that I cant figure out, after driving for about 10 mins it starts surging and finally dies. I was thinking originally it is a carb problem, and replaced the carb with a new motorcraft. The problem is still there, next I replaced the fuel sending unit, still no love, lastly I went thru the ignition and put in new wires, plugs, coil, etc.....still no love, anyone have anything else to try? Jeep is a 4.2 Auto.

Thanks,
Tom M

 

[Chief Hof]

Evening...fuel sending unit? Do you mean the fuel pump? Try changing that, then the fuel filter. If that's GTG consider your vacuum system.

 

[Sting67Ray]

Thanks for the reply, I will try to but a gauge on the fuel line to see if the pump is working.