tn_outside2003
NAXJA Forum User
- Location
- Tennessee
This is sort of a re-post of the same problem I have been having for some time.
'00 XJ Sport, 4.0, AW4 tranny. Stock except for OME lift.
I commute, at 80mph, 36 miles nonstop, each way daily. Recently the jeep has been "hiccupping" for lack of a better term. It stops pulling for just a second. The cruise control is usually on, but it does it under foot-throttle as well.
It does it more when it is hot outside. In the mornings....maybe once. In the afternoon about 6 times in 36 miles.
I noticed today that during one of the "hiccups" the RPMs jumped up, like pushing in a clutch with cruise control in a manual tranny. So the engine seemed to be revving up as if it lost connection to the tranny. But only for a split second.
Yesterday afternoon it "hiccupped" and it lost all power. It just started slowing down, under no power at all. I tapped the brake to disengage the cruise and gave it gas. The engine revved up and the jeep started pulling again. It felt as if it would just keep not pulling until it stopped....but as soon as I gave it gas all was well.
What in the world is going on? I have heard Crank sensor (new, Napa/Oreilly junk), TPS (replaced, junk yard), Cam position sensor (new/Mopar), and transmission.
If ANYONE has any idea what is going on, please provide some level of detailed response, other than "it's probably your _________." I certainly appreciate the help, but a list of "It's probably your _________" with no other information is not really that helpful. I am not being rude...but desperate. I REALLY need to get this sorted out before I end up stranded on the side of I-40. Is it my TPS, and if so, what would be the symptom and how do you know? If it is my tranny, what is the symptom, what failed, and how do you know? If it is the ______________, what is the symptom and how do you know?
If I "should probably replace my ____________" please offer why and/or how/why you suggest this.
I am good at working on my jeep. I also have a good mechanic. But the XJ is not throwing ANY codes. And you have to drive it hot, at 80mph, for 20 miles or more to make it act up. And it only hiccups a couple of times. My mechanic would be able to agree that it hiccups. But without it doing this A LOT more often or throwing codes, he would not have any more idea of what is wrong than I do.
I really need help with this one. Anyone? Please?
'00 XJ Sport, 4.0, AW4 tranny. Stock except for OME lift.
I commute, at 80mph, 36 miles nonstop, each way daily. Recently the jeep has been "hiccupping" for lack of a better term. It stops pulling for just a second. The cruise control is usually on, but it does it under foot-throttle as well.
It does it more when it is hot outside. In the mornings....maybe once. In the afternoon about 6 times in 36 miles.
I noticed today that during one of the "hiccups" the RPMs jumped up, like pushing in a clutch with cruise control in a manual tranny. So the engine seemed to be revving up as if it lost connection to the tranny. But only for a split second.
Yesterday afternoon it "hiccupped" and it lost all power. It just started slowing down, under no power at all. I tapped the brake to disengage the cruise and gave it gas. The engine revved up and the jeep started pulling again. It felt as if it would just keep not pulling until it stopped....but as soon as I gave it gas all was well.
What in the world is going on? I have heard Crank sensor (new, Napa/Oreilly junk), TPS (replaced, junk yard), Cam position sensor (new/Mopar), and transmission.
If ANYONE has any idea what is going on, please provide some level of detailed response, other than "it's probably your _________." I certainly appreciate the help, but a list of "It's probably your _________" with no other information is not really that helpful. I am not being rude...but desperate. I REALLY need to get this sorted out before I end up stranded on the side of I-40. Is it my TPS, and if so, what would be the symptom and how do you know? If it is my tranny, what is the symptom, what failed, and how do you know? If it is the ______________, what is the symptom and how do you know?
If I "should probably replace my ____________" please offer why and/or how/why you suggest this.
I am good at working on my jeep. I also have a good mechanic. But the XJ is not throwing ANY codes. And you have to drive it hot, at 80mph, for 20 miles or more to make it act up. And it only hiccups a couple of times. My mechanic would be able to agree that it hiccups. But without it doing this A LOT more often or throwing codes, he would not have any more idea of what is wrong than I do.
I really need help with this one. Anyone? Please?