Hey y'all, recently bought a 2000 Sahara 4.0, 184k, for a bit of a song; practically all stock. It's been having a truly weird stall-out issue I can't seem to nail down. Half the time it's right after starting up, half the time it's after ten-fifteen minutes driving. She'll start up fine (or glide to a stop fine), stall out, and not crank over immediately. I give her a thirty second break, try again, and she fires back up, no problem. If I had to guess this happens every twenty-five to thirty starts. It's always just the one stall. Just cleaned the battery terminals, and all the grounds I can find. Only other electrical hiccups are the aftermarket radio isn't working, and the fan/ac only blowing on highest setting (I have a new blower motor resistor ready to install but want to chase this first). Spark plugs are 10k old, though looking through the service records they've been chasing a misfire on cylinder 1 for about 100k. Alternator was replaced at the same time. The only thing I can think of is that the fuel pump might be starting to go but I'm truly stumped because of how consistent the gap is with the issue popping up.
Sorry if this is confusing; trust me, I'm even more lost. Thanks for any help, thanks more for even reading.
Sorry if this is confusing; trust me, I'm even more lost. Thanks for any help, thanks more for even reading.