The Schwill
NAXJA Forum User
- Location
- Chicago, IL
Sorry this is long, but I don't know how else to explain my issue.
I have an '01 XJ Sport, with about 110,000 miles on it. No modifications.
A couple of years ago, once in a while I would start it and it would idle very low and rough. If I waited for a minute or revved it up to around 2500 it would then be fine. I had the injectors cleaned and used seafoam.
Even after that, it would still act up once in a while. This would happen at any time of year, hot or cold engine. I could drive it all morning, start it up again and it would act up. The check engine light never came up.
Finally, one day the check engine light came on. Since then, I have had the check engine light come on and off for a little over a year now. The code read multiple cylinder misfire and evap control leak.
I had it in over the summer and the mechanic told me that there a few broken vacuum hoses, he replaced them. The emissions evap leak went away, and the check engine light didn't come back on.
About 3 months later, the check engine light was on again. This happened the day before I was scheduled for an oil change, so I had them check it. The code read multiple cylinder misfire again.
I brought it back to the mechanic, he replaced the coil pack because two of the spots on it were bad. The check engine light went away and it was running fine.
Only a month or so after I had the coil pack replaced, it started up and idled wierd again. I just kind of passed it off as nothing due to the fact that it had been doing this for the past two or three years.
December came, it became cold in Chicago, the Jeep was still running fine. However, I did notice that it would take much longer to warm up this year than in the past. One night that it was cold, I warmed it up before leaving my office, put it in gear and it nearly died. I sat for a few minutes, then tried again. It still died. I warmed it up for another few minutes, it was just under the 210 degree mark on the temp gauge. I turned out of my office parking lot, stopped at the second light and it was idling so low that it was barely runninng. It was responding fine when I gave it gas. I ended up just holding it in neutral between 1000-1500rpms at each light for about the next mile, after that it was fine. No check engine light came on.
The Jeep then ran fine for the next few weeks, through the holidays even when it was cold.
Just recently, it has been acting up again. I figured I would warm it up longer, but that did not help. I can warm it up for 15-20 minutes in the morning and as soon as I put it in gear (either reverse or drive) it barely idles. It responds fine to the gas pedal though. After driving about a mile or two it would be fine. Eventually I would not have to give it gas when stopped to keep it running.
Just the other day, it was idling rough in the morning, like it sometimes does. I gave it gas and the check engine light came on. I have yet to have it in yet. However, I drive almost an hour to work in the morning and it now takes almost the entire hour for it to run fine. If I warm it up for a long time in the morning it barely idles while in gear. However, if I warm it up to the point that there is hot air, with the temp gauge barely hitting the lowest mark, it will run fine while in gear and will not begin to idle at very low rates until it is warmed up to normal operating temp of around 210 degrees!
This afternoon, I drove 25 miles home from work, another 5 miles or so into the city and it wasn't until I was almost to my destination that it was running fine.
I would like to know if anyone knows what my problem might be or what I can try short of replacing anything major. Could it be a timing chain? Fuel pump? Injectors?
I feel that whatever it might be could be the problem that has been ongoing for a couple of years now. The problem that my mechanic has refused to acknowledge or fix!
Thank you,
The Schwill
I have an '01 XJ Sport, with about 110,000 miles on it. No modifications.
A couple of years ago, once in a while I would start it and it would idle very low and rough. If I waited for a minute or revved it up to around 2500 it would then be fine. I had the injectors cleaned and used seafoam.
Even after that, it would still act up once in a while. This would happen at any time of year, hot or cold engine. I could drive it all morning, start it up again and it would act up. The check engine light never came up.
Finally, one day the check engine light came on. Since then, I have had the check engine light come on and off for a little over a year now. The code read multiple cylinder misfire and evap control leak.
I had it in over the summer and the mechanic told me that there a few broken vacuum hoses, he replaced them. The emissions evap leak went away, and the check engine light didn't come back on.
About 3 months later, the check engine light was on again. This happened the day before I was scheduled for an oil change, so I had them check it. The code read multiple cylinder misfire again.
I brought it back to the mechanic, he replaced the coil pack because two of the spots on it were bad. The check engine light went away and it was running fine.
Only a month or so after I had the coil pack replaced, it started up and idled wierd again. I just kind of passed it off as nothing due to the fact that it had been doing this for the past two or three years.
December came, it became cold in Chicago, the Jeep was still running fine. However, I did notice that it would take much longer to warm up this year than in the past. One night that it was cold, I warmed it up before leaving my office, put it in gear and it nearly died. I sat for a few minutes, then tried again. It still died. I warmed it up for another few minutes, it was just under the 210 degree mark on the temp gauge. I turned out of my office parking lot, stopped at the second light and it was idling so low that it was barely runninng. It was responding fine when I gave it gas. I ended up just holding it in neutral between 1000-1500rpms at each light for about the next mile, after that it was fine. No check engine light came on.
The Jeep then ran fine for the next few weeks, through the holidays even when it was cold.
Just recently, it has been acting up again. I figured I would warm it up longer, but that did not help. I can warm it up for 15-20 minutes in the morning and as soon as I put it in gear (either reverse or drive) it barely idles. It responds fine to the gas pedal though. After driving about a mile or two it would be fine. Eventually I would not have to give it gas when stopped to keep it running.
Just the other day, it was idling rough in the morning, like it sometimes does. I gave it gas and the check engine light came on. I have yet to have it in yet. However, I drive almost an hour to work in the morning and it now takes almost the entire hour for it to run fine. If I warm it up for a long time in the morning it barely idles while in gear. However, if I warm it up to the point that there is hot air, with the temp gauge barely hitting the lowest mark, it will run fine while in gear and will not begin to idle at very low rates until it is warmed up to normal operating temp of around 210 degrees!
This afternoon, I drove 25 miles home from work, another 5 miles or so into the city and it wasn't until I was almost to my destination that it was running fine.
I would like to know if anyone knows what my problem might be or what I can try short of replacing anything major. Could it be a timing chain? Fuel pump? Injectors?
I feel that whatever it might be could be the problem that has been ongoing for a couple of years now. The problem that my mechanic has refused to acknowledge or fix!
Thank you,
The Schwill
