- Location
- MilkyWay Galaxy
History:
2WD, 89 XJ, 4.0, last repair was new CPS (6 months ago), and brake light switch (3 months ago). Has cruise, but it never worked.
The AW4 has on occasion the last 15,000-20,00 miles (2 years) had some issues. One was a tail cone seal leak. The brass tail cone to drive shaft bushing is worn, and needs R&R, but the leak slowed considerably with 1/4 pint of Trans-X addition (every 6-12 months) and regular transfusions 2.5 quarts at a time. It also had a problem getting stuck in 2nd gear while in D once, about 2 years (20,000 miles ago), that went away with Trans-X addition and transfusions.
Engine and AW4 work like new during acceleration and cruising, lots of torque and power!!!! I have had this jeep for about 4-5 years now. First repair was a new head gasket, 40,000 miles ago, right after I bought it. All major tune items were replaced. Mileage is still low, under 150,000 miles total since 1989.
Problem #1:
But the engine has a slight miss at idle, that makes the idle speed drop 200-300 rpm (from 900 to 500 rpm in park, from 750 to 450 in drive) during the miss.
Problem #2:
It is also taking a longer crank time to get it to start lately. It is not a DD, so it is not used daily. We try to make sure it gets used once a week, but it has set for 2-3 weeks at times. Battery is new, crank speed is very fast, CPS voltage is very good. Fuel economy is still pretty good, still 16-18 MPG.
Problem #3:
The transmission has absolutely no reverse on cold weather start up. After several minutes of warm up, reverse suddenly works perfectly (like someone flipped a switch), no slipping. I am wondering if the NSS can cause a cold weather loss of reverse? Also, the linkage is tied together with bailing wire where the plastic ball clip assy is, as the plastic QC was damaged by a tow truck idiot about 2 years ago, who disconnected it and damaged it. The bailing wire is there to make sure the connection does not "pop off" since it is not a solid clip and hold anymore. But I may have the bailing wire too tight for cold weather???? The cold weather reverse issue start up last winter, and re-appeared last week.
My 87 had a slow to engage reverse in cold morning start ups for 4 years before it lost 1st and second gears presumably due to aged o'ring seals and internal leaks around those worn seals that kept the pistons in the valve body from getting enough pressure to engage the clutch packs.
Problem #4:
The TC no longer locks up at all!!! It use to work. This may have started right after I fixed (replaced) the lower brake light switch!!!!
2WD, 89 XJ, 4.0, last repair was new CPS (6 months ago), and brake light switch (3 months ago). Has cruise, but it never worked.
The AW4 has on occasion the last 15,000-20,00 miles (2 years) had some issues. One was a tail cone seal leak. The brass tail cone to drive shaft bushing is worn, and needs R&R, but the leak slowed considerably with 1/4 pint of Trans-X addition (every 6-12 months) and regular transfusions 2.5 quarts at a time. It also had a problem getting stuck in 2nd gear while in D once, about 2 years (20,000 miles ago), that went away with Trans-X addition and transfusions.
Engine and AW4 work like new during acceleration and cruising, lots of torque and power!!!! I have had this jeep for about 4-5 years now. First repair was a new head gasket, 40,000 miles ago, right after I bought it. All major tune items were replaced. Mileage is still low, under 150,000 miles total since 1989.
Problem #1:
But the engine has a slight miss at idle, that makes the idle speed drop 200-300 rpm (from 900 to 500 rpm in park, from 750 to 450 in drive) during the miss.
Problem #2:
It is also taking a longer crank time to get it to start lately. It is not a DD, so it is not used daily. We try to make sure it gets used once a week, but it has set for 2-3 weeks at times. Battery is new, crank speed is very fast, CPS voltage is very good. Fuel economy is still pretty good, still 16-18 MPG.
Problem #3:
The transmission has absolutely no reverse on cold weather start up. After several minutes of warm up, reverse suddenly works perfectly (like someone flipped a switch), no slipping. I am wondering if the NSS can cause a cold weather loss of reverse? Also, the linkage is tied together with bailing wire where the plastic ball clip assy is, as the plastic QC was damaged by a tow truck idiot about 2 years ago, who disconnected it and damaged it. The bailing wire is there to make sure the connection does not "pop off" since it is not a solid clip and hold anymore. But I may have the bailing wire too tight for cold weather???? The cold weather reverse issue start up last winter, and re-appeared last week.
My 87 had a slow to engage reverse in cold morning start ups for 4 years before it lost 1st and second gears presumably due to aged o'ring seals and internal leaks around those worn seals that kept the pistons in the valve body from getting enough pressure to engage the clutch packs.
Problem #4:
The TC no longer locks up at all!!! It use to work. This may have started right after I fixed (replaced) the lower brake light switch!!!!