I was wondering if someone would be able to provide some direction for my engine issue. I just added a new lift and did some axle work, but I doubt that had anything to do with the new engine problems.
This issue occurs very randomly and maybe once a month, or if I'm running a lot of errands in which I'm turning the Jeep on and off several times within a short period of time.
The problem begins when I start up the Jeep, from a cold start or a warm start, happens in both circumstances, the engine idles extremely roughly. With a little added gas to rev the engine up, everything returns to normal and the engine idles as it should. About a minute or so after the idle goes away, I get the ODB codes for random cylinder misfire... typically cylinders 1,2,3... never the rear 3.
Once I have rev'ed the engine and it returns to normal, it doesn't happen again during that trip. If I shut off the Jeep and turn it back on shortly after, I can expect it to happen again unless the Jeep has been off for the whole night.
So far, I have complete an oil change, new plugs, new coil, and cleaned the throttle body.
Im pretty handy and have the ability to fix the issues on my owe usually, I just need so direction and advice on where to start?
(Jeep XJ 2001, 4.0)
Thanks so much for the help! Truely much appreciated!!!
This issue occurs very randomly and maybe once a month, or if I'm running a lot of errands in which I'm turning the Jeep on and off several times within a short period of time.
The problem begins when I start up the Jeep, from a cold start or a warm start, happens in both circumstances, the engine idles extremely roughly. With a little added gas to rev the engine up, everything returns to normal and the engine idles as it should. About a minute or so after the idle goes away, I get the ODB codes for random cylinder misfire... typically cylinders 1,2,3... never the rear 3.
Once I have rev'ed the engine and it returns to normal, it doesn't happen again during that trip. If I shut off the Jeep and turn it back on shortly after, I can expect it to happen again unless the Jeep has been off for the whole night.
So far, I have complete an oil change, new plugs, new coil, and cleaned the throttle body.
Im pretty handy and have the ability to fix the issues on my owe usually, I just need so direction and advice on where to start?
(Jeep XJ 2001, 4.0)
Thanks so much for the help! Truely much appreciated!!!