I have a 98 TJ manual with 120K mi. I fill up with regular gas as I learned with my XJ these 4.0l don't like premium.
I have an issue that has worsened, initially showing itself intermittent in second gear at about 1500 RPM when cold. Now it is in 1st and 3rd and easier to replicate.
Now when cold, pull out of drive way and step on gas and the motor stutters at 1200 rpm or so, shift up and the same a little higher in the RPM band and again in third (I used to be able to shift from second to third and this would make the stumble go away). I watch the tack drop in and out with the stumble, but I think the engine just goes down to idle RPM and isn't necessarily in risk of cutting off.
Any suggestions?
I have an issue that has worsened, initially showing itself intermittent in second gear at about 1500 RPM when cold. Now it is in 1st and 3rd and easier to replicate.
Now when cold, pull out of drive way and step on gas and the motor stutters at 1200 rpm or so, shift up and the same a little higher in the RPM band and again in third (I used to be able to shift from second to third and this would make the stumble go away). I watch the tack drop in and out with the stumble, but I think the engine just goes down to idle RPM and isn't necessarily in risk of cutting off.
Any suggestions?