NEED HELP! Jeep cuts off, I'm stuck in traffic!
I have a '94 Cherokee Sport 4.0L that will cut off while driving and won't restart. I've read through a thousand similar cases, but haven't seen anything explained exactly this way. When the issue first started, I could immediately pop it in neutral, and restart it. The problem was very intermittent. Over the course of 4-5 months, the problem worsened to the point that it took a few minutes to restart, to it may take up to 1-3 hrs before it would restart. It doesn't matter if you're driving, stopped, or even stopped with the car in neutral and the gas pedal slightly pressed running 2-3k RPMs (don't ask why I thought that would help, I was desperate). If I'm stopped, I can hear and tell that the engine stalls. If I'm driving, there are times that the only way I new it had stalled was because I had lost power steering. I replaced the fuel filter, but that didn't solve the issue. Eventually I gave up and let the car sit for 9+ months. Now I'm determined to fix the problem. I charged up the battery, started it up, put it in drive, and drove it about 60ft before it stalled and wouldn't restart. I waited about 20 minutes and it wouldn't restart. 3 hours later, I tried again and it started up, I revved the engine a bit, let it sit around 2k RPMs for a few seconds, and it stayed running for 10 minutes before I turned it off. My research makes me lean towards thinking it is the Crank Position Sensor. I'm not against taking it to a shop, but I just want to make sure I test everything I can before it comes to that. I know your time is valuable and I am VERY THANKFUL to all who have spent a few minutes of their time reading and giving advice!
Extra notes/issues that may help:
- Like many Jeeps, mine has overheating issues. I removed the thermostat, which has helped. I only do in-town driving, so overheating is never a worry.
- In 2004 I had Neutral Safety Switch issues. I could do the shifter shuffle and that would help, or putting it in neutral. Eventually I stuck a paperclip in the NSS plug so it would start in any gear. I of course only try to start it in park or neutral. Haven't had any issues with this in since the embarrassingly effective paperclip fix (that I know of).