- Location
- Southern Maryland
I had 339k miles on the one I replaced. It worked fine except the torque converter lockup (probably a bad solenoid) and it was slow to move on cold weather (seals or clutch maybe). They are very durable.
Longest running AW4?
- Thread starter stephenspann27
- Start date
- Location
- Southern Maryland
I extended the tranny and transfer case breather hoses up the dipstick to keep that from being an issue
- Location
- Hammertown, USA
I extended the tranny and transfer case breather hoses up the dipstick to keep that from being an issue
So did I, but when you sit in water for long enough it finds ways in. I was probably in the water for 30 minutes?
Its a very long story. There are mesquito's, logs, a tie rod and some polish guys involved.
OverTheHillsATTW
NAXJA Forum User
- Location
- Pennsylvania
My 90 had 212k original trans and one engine rebuild. I beat the snot out of it before I let it sit to rest and still it would run great. Most of the time people use the wrong fluids in the aw4 thinking it's chrysler.
The state just has something against rusted floors rockers and doors.. idk.
The state just has something against rusted floors rockers and doors.. idk.
ttms91xj
NAXJA Forum User
- Location
- lewisville, tx
91 Xj, 2'nd motor, 239K on tranny, still shifts smooth as a babies bottom. I also added an Aux. cooler
fatotto
NAXJA Forum User
- Location
- connecticut
How often for a tranny fluid change to get that kind of miles out of it.
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
I changed mine once... probably need to do it again. I think the service interval is like 75k or so.
stephenspann27
NAXJA Forum User
- Location
- College Station, Tx
I don't want to really take the thread in this direction.. just thought I would mention it.
People often talk about how bullet proof the 4.0 is ect. However, I hear a lot more stories about them throwing rods, spinning bearings, ect., than stories like "my 4.0 has 300k+ on it" I know they are out there. My motor is original with 260k on it and shows little wear. I think inline motors, especially inline 6's have potential to be more durable than dual banked V shaped engines. One reson I can think of is that the inline engines have so many main caps holding the crank in line. Another, which has to do with piston skirt/cylinder wear, is that in V shaped engines, pistons want to snake up and down the cylinder more than they do in a inline engine. Which causes the piston skirts/cylinde walls to wear faster.
I wonder though, if there were some graph comparing the 4.0 to some other popular motors how it would actually fair in the category of durability (chevy 4.3, 350, 3.8). I think the factor that would scew the results is that the 4.0 is often more abused than other engines.. (hydrolocked ect.) In my limited experience with jeeps I can thinking of quite a few people who have had catastrophic failure from a 4.0.
People often talk about how bullet proof the 4.0 is ect. However, I hear a lot more stories about them throwing rods, spinning bearings, ect., than stories like "my 4.0 has 300k+ on it" I know they are out there. My motor is original with 260k on it and shows little wear. I think inline motors, especially inline 6's have potential to be more durable than dual banked V shaped engines. One reson I can think of is that the inline engines have so many main caps holding the crank in line. Another, which has to do with piston skirt/cylinder wear, is that in V shaped engines, pistons want to snake up and down the cylinder more than they do in a inline engine. Which causes the piston skirts/cylinde walls to wear faster.
I wonder though, if there were some graph comparing the 4.0 to some other popular motors how it would actually fair in the category of durability (chevy 4.3, 350, 3.8). I think the factor that would scew the results is that the 4.0 is often more abused than other engines.. (hydrolocked ect.) In my limited experience with jeeps I can thinking of quite a few people who have had catastrophic failure from a 4.0.
AZRockRunner
Nobody
- Location
- Tucson, Az
330,xxx and still going striong on mine.
In fact it is working MUCH better than the trannie in my wifes 89 and the trannie in my 01. LOL, go figure
In fact it is working MUCH better than the trannie in my wifes 89 and the trannie in my 01. LOL, go figure
- Location
- Torrance, CA
I don't know about you but I don't make create posts in tech forums saying "Yup, my stuff is still working, just letting you know."
PurpleCherokee
NAXJA Forum User
- Location
- MO
That's why it seems like crap's breakin all the time.
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
that and we tend to break a lot of crap
stephenspann27
NAXJA Forum User
- Location
- College Station, Tx
Haha that's a good point..
cashless
NAXJA Forum User
- Location
- Yucaipa CA
4wheelnfun
NAXJA Forum User
- Location
- Up-State New York
I have 226,689 miles on the original AW4 and 4.0 in my '96 Sport.
Only one previous owner, 99% of miles on the road and he drove it easy.
It was regularly serviced at the dealer.
The trans shifts very well and the engine runs nicely, buy with some typical 4.0 piston slap.
I am amazed at the 0-50 mph get up and go with nice firm shifts, and the mileage is not bad at about 19 mpg.
Only one previous owner, 99% of miles on the road and he drove it easy.
It was regularly serviced at the dealer.
The trans shifts very well and the engine runs nicely, buy with some typical 4.0 piston slap.
I am amazed at the 0-50 mph get up and go with nice firm shifts, and the mileage is not bad at about 19 mpg.
