98 XJ 2-door, 4.0, 5 speed
Just got back from vacation, so the jeep sat for 2 weeks
Warmed up for 10 mins, drove 5 miles to work just fine.
Drove 5 miles home just fine.
Later that day, drove 2 miles to grocery store fine, loaded up, then heading back it starts acting up.
I get 1/2 a mile from the store, taking off from a light, up to 2nd gear, between 1 and 2k RPM, feels like a loss of power, like I'm out of gas. Motor doesn't respond to the gas pedal like usual, sort of stumbles but never dies. Clutch out, rev it up a bit (2k rpm, nothing crazy), again not behaving right, like it's trying but not succeeding. Like it's getting some gas but not enough. Pull over, idle stumbles to 500, 200. Clutch out, rev it up a bit again, starts idling normally (700-1000). Drive 100 ft, feels ok. Never once dies. I sit and let it idle for a minute or two, then take back off for home. Remaining 1.5 miles to home, acts normal, pulls strong with normal power up to 3rd gear, no issues, except for 1 more small hiccup which I felt but didn't see on the tach.
All gauges fine, no idiot lights, no codes, no chimes. Nothing prior to indicate an issue.
I couldn't isolate the problem to anything specific while I was driving -
I have a full tank (filled 2 weeks ago just before i left for vaca from my normal reliable gas station). Gauge still reads full.
It didn't seem to do it in a specific gear or under a specific load or at a specific RPM.
Possibly related- When I shut it down after driving across town, I can hear a considerable amount of "flushing" noises coming from the fuel tank area. I've been under the entire jeep, all the fuel lines look great except for 1 short one is pretty corroded near the tank. Nothing's leaking so I assumed it's not an issue. I asked NAPA if they had a fuel filter for the jeep and they said it was internal to the tank so I haven't bothered with it.
I have ~125k on it.
I'm not getting any codes.
What do you guys think?
Do I have a fuel delivery issue?
Do I have a sensor going bad?
How does it behave if I'm losing a crank or cam position sensor? In my 00 Dakota, when my cam position sensor was going bad, it would randomly kill the motor out of the blue, then fire up again 5 mins later like nothing happend, but it would throw a code.
TIA, sorry for the book :rtm:
Just got back from vacation, so the jeep sat for 2 weeks
Warmed up for 10 mins, drove 5 miles to work just fine.
Drove 5 miles home just fine.
Later that day, drove 2 miles to grocery store fine, loaded up, then heading back it starts acting up.
I get 1/2 a mile from the store, taking off from a light, up to 2nd gear, between 1 and 2k RPM, feels like a loss of power, like I'm out of gas. Motor doesn't respond to the gas pedal like usual, sort of stumbles but never dies. Clutch out, rev it up a bit (2k rpm, nothing crazy), again not behaving right, like it's trying but not succeeding. Like it's getting some gas but not enough. Pull over, idle stumbles to 500, 200. Clutch out, rev it up a bit again, starts idling normally (700-1000). Drive 100 ft, feels ok. Never once dies. I sit and let it idle for a minute or two, then take back off for home. Remaining 1.5 miles to home, acts normal, pulls strong with normal power up to 3rd gear, no issues, except for 1 more small hiccup which I felt but didn't see on the tach.
All gauges fine, no idiot lights, no codes, no chimes. Nothing prior to indicate an issue.
I couldn't isolate the problem to anything specific while I was driving -
I have a full tank (filled 2 weeks ago just before i left for vaca from my normal reliable gas station). Gauge still reads full.
It didn't seem to do it in a specific gear or under a specific load or at a specific RPM.
Possibly related- When I shut it down after driving across town, I can hear a considerable amount of "flushing" noises coming from the fuel tank area. I've been under the entire jeep, all the fuel lines look great except for 1 short one is pretty corroded near the tank. Nothing's leaking so I assumed it's not an issue. I asked NAPA if they had a fuel filter for the jeep and they said it was internal to the tank so I haven't bothered with it.
I have ~125k on it.
I'm not getting any codes.
What do you guys think?
Do I have a fuel delivery issue?
Do I have a sensor going bad?
How does it behave if I'm losing a crank or cam position sensor? In my 00 Dakota, when my cam position sensor was going bad, it would randomly kill the motor out of the blue, then fire up again 5 mins later like nothing happend, but it would throw a code.
TIA, sorry for the book :rtm:
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