Help! '03 sport, 4.0, manual. In a bit of a pickle. Went snow wheeling last weekend, and started having problems running. I don't know if this makes a difference or not, but just in case I'll say it, I hit the governor like 7 times on the drive up.
So while we were wheeling, I was idling at the bottom of a hill waiting on someone to make it over and the Jeep puttered and died. When I tried to restart, it did, but acted like it was out of gas. After that it would turn over but not fire. First we thought vapor lock. But we couldn't get anything at the valve. We turned the key on, and heard the pump run, but not for more than a second or two. We scratched our heads, pulled the o2 sensor to release backpressure, and rolled the Jeep down to flat ground to get out of the way of a snowmobile. We shut off all electronics, pulled the drl connector, then pulled the relay and jumpered the pump. It ran just fine, so we cranked her and she started back up. Then we put the relay back in and it ran fine. So we shut her down, put the oxygen sensor back in, and and fired her up. No problem.
Half hour later it did it again. Once again on a slight incline. We rolled it back down to flat ground, pulled o2 sensor, shut everything off, and she fired up.
Took her into town and a shop tested the alternator, because a buddy had a suspicion I would have never come to. They tested it at 13.8 volts. They all agreed that the alternator was just not putting out enough juice, but I was still not convinced. The battery alone should be enough to run the pump, right? Still, my alternator was under warranty at home so I decided to try to drive it.
Well I drove it two hours to my dad's house, and it occasionally sputtered along the way, but did 75 just fine. Stopped for gas before finishing the drive to my place(another 2 hour drive), and it wouldn't start up. I shut off the lights, and radio and all(except cb), and it started up and ran smooth. Keyed the mic and it died. Did it again, same result. Killed the cb, and tried again, and it started, but sputtered out before I got out of the gas station. Ran to town for an alternator, when I got back to my Jeep a half hour later, it started and made the 3 mile drive to my dad's place fine. In the morning I replaced the alternator, then drove 2 hours home without trouble.
Today after work, I drove all around trying to find a homeless guy shelter, and after I got him settled, tried to drive home. It sputtered out and died.
So now, I have a problem that sometimes when my Jeep gets warm, it doesn't give me fuel, and it appears to be electrical... I'm sitting here disabled waiting for the engine to cool to see if she'll start and get me home. What is going on?
Only thing I can think is a bad ground. Would there be one that might cause this? Please help. Everything I have is breaking and my brain is getting fried.
So while we were wheeling, I was idling at the bottom of a hill waiting on someone to make it over and the Jeep puttered and died. When I tried to restart, it did, but acted like it was out of gas. After that it would turn over but not fire. First we thought vapor lock. But we couldn't get anything at the valve. We turned the key on, and heard the pump run, but not for more than a second or two. We scratched our heads, pulled the o2 sensor to release backpressure, and rolled the Jeep down to flat ground to get out of the way of a snowmobile. We shut off all electronics, pulled the drl connector, then pulled the relay and jumpered the pump. It ran just fine, so we cranked her and she started back up. Then we put the relay back in and it ran fine. So we shut her down, put the oxygen sensor back in, and and fired her up. No problem.
Half hour later it did it again. Once again on a slight incline. We rolled it back down to flat ground, pulled o2 sensor, shut everything off, and she fired up.
Took her into town and a shop tested the alternator, because a buddy had a suspicion I would have never come to. They tested it at 13.8 volts. They all agreed that the alternator was just not putting out enough juice, but I was still not convinced. The battery alone should be enough to run the pump, right? Still, my alternator was under warranty at home so I decided to try to drive it.
Well I drove it two hours to my dad's house, and it occasionally sputtered along the way, but did 75 just fine. Stopped for gas before finishing the drive to my place(another 2 hour drive), and it wouldn't start up. I shut off the lights, and radio and all(except cb), and it started up and ran smooth. Keyed the mic and it died. Did it again, same result. Killed the cb, and tried again, and it started, but sputtered out before I got out of the gas station. Ran to town for an alternator, when I got back to my Jeep a half hour later, it started and made the 3 mile drive to my dad's place fine. In the morning I replaced the alternator, then drove 2 hours home without trouble.
Today after work, I drove all around trying to find a homeless guy shelter, and after I got him settled, tried to drive home. It sputtered out and died.
So now, I have a problem that sometimes when my Jeep gets warm, it doesn't give me fuel, and it appears to be electrical... I'm sitting here disabled waiting for the engine to cool to see if she'll start and get me home. What is going on?
Only thing I can think is a bad ground. Would there be one that might cause this? Please help. Everything I have is breaking and my brain is getting fried.