JeepNoob
NAXJA Forum User
- Location
- Pueblo, Colorado
Hey guys, looking at getting into another XJ. (finally!) It's a 30-year old death trap, but at least it has a 4.0 and 4x4, and it's being sold for a price that's an absolute sore-dick deal. Few problems (of course it wouldn't be a cheap Jeep if there wasn't some) 1. Owner says it idles high. I dunno how he figures that since it's an automatic with no tach. He said it has something to do with some throttle lever or linkage hitting the steering shaft. Yeah, I have no idea either, I'll have to take a look at it, but apparently it does run and drive. 2. 4x4 doesn't work. No big deal for a street-beater. I think the two problems may be related...
Now, I'm pretty good and knowledgeable with 4.0's and XJ's in general, but a Renix is kinda new territory for me. Some thoughts I had-
1. Common problems. I know about a lot of the common 4.0 stuff like oil leaks, header cracks, CKP sensors, etc. What on a Renix is different from a H.O. that will bite me in the fourth-point-of-contact and leave me stranded or with a vehicle that runs like crap?
2. Differences? I know about the EGR, fuel pressure regulator, head/intake manifold/cam/ignition coil. Anything else I should know about?
3. EGR delete? Worth it or no?
4. 96+ stud girdle? This thing definitely seems to help 4.0's live a long, healthy life. Could one be swapped into a Renix? I'm sure this thing will have a rear-main leak, so if I'm going through all that work, might as well throw one in if I can.
5. Vacuum leaks on a Renix? I suspect problem 1 and 2 may be related...
6. Good stuff to do. Mods, preventative maintenance, etc. What would be some good things not listed to make sure this thing lives a long, happy, efficient, trouble-free life?
I have a Chilton manual for XJ's and access to Mitchell ProDemand, a few FSM's, plus the search button, so I'll try to keep the stupid questions to a minimum, but any input is appreciated.
Now, I'm pretty good and knowledgeable with 4.0's and XJ's in general, but a Renix is kinda new territory for me. Some thoughts I had-
1. Common problems. I know about a lot of the common 4.0 stuff like oil leaks, header cracks, CKP sensors, etc. What on a Renix is different from a H.O. that will bite me in the fourth-point-of-contact and leave me stranded or with a vehicle that runs like crap?
2. Differences? I know about the EGR, fuel pressure regulator, head/intake manifold/cam/ignition coil. Anything else I should know about?
3. EGR delete? Worth it or no?
4. 96+ stud girdle? This thing definitely seems to help 4.0's live a long, healthy life. Could one be swapped into a Renix? I'm sure this thing will have a rear-main leak, so if I'm going through all that work, might as well throw one in if I can.
5. Vacuum leaks on a Renix? I suspect problem 1 and 2 may be related...
6. Good stuff to do. Mods, preventative maintenance, etc. What would be some good things not listed to make sure this thing lives a long, happy, efficient, trouble-free life?
I have a Chilton manual for XJ's and access to Mitchell ProDemand, a few FSM's, plus the search button, so I'll try to keep the stupid questions to a minimum, but any input is appreciated.