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  1. MAP vs Barometric pressure check

    Anyone with JScan that can check what their intake manifold absolute pressure and absolute barometric pressure reads in psi with key on/engine off? My understanding is they should be the same when the engine is off, but my intake MAP is reading 9psi and Barometric is reading 15psi. This picture...
  2. 2.0T making oil? Keep an eye on level during cold temps.

    Noticed that my engine was getting louder than normal and sounded like a single cylinder knock. I checked the oil and it was up to the bend in the dipstick. I had changed the oil myself in October (about 1500 miles ago) and know I put in 5 quarts as I bought a 5qt jug. 5qts usually shows a level...
  3. New transmission shifting strange. Is it normal?

    I recently had my '20 JLUR with the 2.0 and etorque in the dealer for a shudder in the transmission when shifting to second gear. The dealer replaced the transmission. But now, when shifting to second under light to moderate acceleration, I can feel the torque converter locking (or going from...
  4. Remove skid plate before dealer visit?

    My transmission has been shifting hard/shuddering on the 1-2 shift when warmed up for almost 2 years. I have ignored it because of the local dealers being so backlogged that it would be sitting for 6+ weeks to get looked at. My 3/36 basic warranty is about to expire and I am thinking of taking...
  5. Weird issue today with FAD and not able to put into Park

    I'm out here in Moab today for EJS. After our trail run, we ran up to Tusher Tunnel. I was in 4Lo and did a u-turn in some loose sand and an error appeared on screen about the FAD not being available in 4 hi or something similar. I came to a stop and tried to put the transmission in park and the...
  6. Amount of spacer lift before spring bind?

    I have a '20 JLUR. After adding a winch to the front and accounting for the factory rake, I am wondering if I can add a 3/4" or 1" spacer to the front and not have to worry about spring bind? I even considered the Teraflex 1.5" spacer lift. Does anyone know how much spacer I can add before...
  7. Pennzoil Platinum no longer lists MS-13340 spec, but Castrol Edge does.

    Was looking at Castrol's website and noticed that it listed Edge 5W-30 meets "engine test requirements" for MS-13340 HERE. I then looked at Pennzoil's website and noticed that the page for Platinum no longer lists the MS-13340 spec. I also checked the viscosity specific spec sheet and same...
  8. How long is average time to wait for a dealer to look at the vehicle

    I used to work at a dealership in the mid '90s (I know I am old) and we rarely had a customer wait more than a day to have their vehicle at least looked at by a technician. It might be there longer for the repair, but it was at least inspected within a day. Times seem to have changed and now it...
  9. Metal machining debris in axle housing

    I changed the gear oil in the axles today in my '20 JLUR Recon with almost exactly 7K on the odometer. I wanted to change it now to get any break-in metal cleared out and then should be good for a while. The back one was a little dirty, but nothing special and went smoothly. The front, however...
  10. Mods Please Delete

    Removed due to copyright concerns
  11. Battery load testing precautions

    I have a '20 JLUR with the 2.0L e-torque. I think my main 12V battery may be going bad. Dealers around here are backed up. I want to take it to a parts store to have the battery tested before going through the hassle of the dealer. Are there any specific precautions to take with the 48V...
  12. Normal behavior or something going bad?

    I have noticed recently that my JLURR with the 2.0 etorque hesitates and jerks a lot of the time when starting from a dead stop, or when switching from brake to acceleration at very low speeds (i.e. turning a corner). This seems to always happen first thing in the morning after sitting...
  13. Transmission Adaptive Learning Reset

    My nearly new '20 JLURR (2.0T with etorque) is shifting a bit strangely. The 1-2 shift after a cold start is hard. Also when slowing down to a very low speed (like when turning a corner) and then trying to accelerate, the transmission seems to be in the wrong gear and hesitates. Pushing the...
  14. Smart battery charger safe to use on JL?

    My JL does not get a lot of road time right now and I think the battery needs to be charged. The manual warns that I should disconnect the battery if using a "fast charger". I could not find a definition of what that is in the manual. I have a Schumacher smart battery charger that varies voltage...


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