Did you try putting it in 4 wheel drive and low range? If it motivates in 4x4 low range, the problem in in your transfer case.
If you pull the transmission, be sure and replace the front pump assembly, there are wear items in it that wear out with age.
A TransGo and a Suncoast TC are both excellent upgrades. I have both!
When was the timing belt, water pump, timing belt idler pulleys and tensioner pulleys replaced? If you don't know, it should be done ASAP.
Also with your mileage, you are coming up on time to replace all the exhaust valves. (8). They are known for breaking around 200k (322km) and when one breaks off, it will do catastrophic damage to the piston and head. In some cases completely destroying an engine.
, it contains a lot of valuable information.
The Jeep Liberty CRD is certainly not a vehicle for everyone unless you are fully capable of performing all of your own vehicle maintenance, wrenching, and performing all your own repairs!
If you have to pay someone else to perform work on this engine and you are lucky enough to actually find someone that is knowledgeable and experienced on how to work on this very unique engine, it can get very expensive real fast!!!
The parts and the labor both can be very expensive$$$!!!
And it gets worse, there are now several essential engine and electronic parts that are no longer available in the North American market by OEM Mopar dealers. If one of these parts goes bad, you are forced to search for either a good used part or figure out an alternative repair.
Below is a list supplied to some other requesters previously, it certainly is not all inclusive, but a good basic list of possibilities to consider... Searching on LOSTJeeps.com, and YouTube you can find informational threads/videos on many of these items along with some 'how to' instructions on them... If you have questions on any of the items just ask, there are many great people on the Jeep forums more than willing to help and answer any question no matter now trivial....
**Timing belt replacement should be number one if you have not done it or know if and / or when it was last done! Most replace the water pump as well when replacing the timing belt...
A broken timing belt can cause catastrophic damage as this is an interference engine and repairs can get very expensive when considering replacement costs of damaged parts and labor...
Never install an in-hose thermostat, it has been reported by some owners who tried it to be a very bad modification that may cause a blown head gasket or worse yet, a cracked head. Not worth the risk!
Some very good updates and mods worth considering as time and money allow:1. ‡Total EGR system delete! Number one and most critical modification to this engine to improve longevity and reliability.
https://www.ebay.com/sch/i.html?_from=R ... L&_sacat=02. Install intank fuel pump. (Eliminates all air in fuel problems forever)
http://www.auerbach.ca/kj/lift_pump/default.html3. Replace *timing belt, idler rollers, tension roller, and water pump
(*if it has not already been done)
https://www.idparts.com/timing-belt-kit ... -2721.html4. Replace all engine exhaust valves if vehicle mileage is approaching 200k. They are known for breaking off and causing catastrophic engine damage when reaching a certain life cycle.
5. If the head is removed for any reason, reinstall using APG head studs, they provide much better clamping and sealing force than the OEM head bolts.
6. Replace *Ceramic Glow Plugs with 5 volt metal ones if it has not already been done.
*Ceramic ones can break off and cause catastrophic engine damage
7. Install ProVent 200 filter on CCV system
8. Replace boost hoses with good quality Silicone hoses
Items 3-8 along with many other parts for this engine/vehicle can be sourced from IDParts.com
9. Install 2-micron secondary fuel filter after stock OEM filter to protect CP3 pump & injectors (must have lift pump installed to run two fuel filters)
viewtopic.php?f=98&t=80139&hilit10. Change engine oil / filter, use 5W-40 or higher full synthetic diesel rated oil only. CJ4 or higher API rating. Use a 15w40 weight full synthetic oil like Shell Rotella T6 is best in warmer locations. (Install a larger better-quality oil filter and never use 0 weight rated oil in this engine!)
11. Make sure you only use or have the correct HOAT G-05 antifreeze installed.
(Do not use the green stuff)
12. ‡Remove CAT & choke point from exhaust pipe and put in straight piece of pipe in place of CAT (improves exhaust gas flow, lowers backpressure on turbo and improves turbo spool up response time)
13. Replace muffler with straight through performance muffler like a Flowmaster. (Same improvements as item #13)
14. Replace torque converter with a better/stronger unit if OEM TC is slipping. SunCoast TC is a highly rated TC that many have used!
15. Replace transmission front pump assembly if you have the transmission out for any reason. There are wear items in the front pump that cause problems with age.
16. Install Magnefine in-line transmission fluid filter (filters and traps all micro fine metal particles and can be serviced without dropping transmission pan)>
https://www.magnefinefilters.com/NEW-Ma ... 810000.htm17. Replace the flimsy rear upper OEM boomerang control arm with the super heavy duty IronRock Control Arm & mount.
https://www.ironrockoffroad.com/Replace all springs and shocks with quality parts like IRONMAN or OME springs and Bilstein Shocks.
https://ironman4x4america.com/(OEM Springs’s sag and get weak over time and shocks wear out)
18. Upgrade tires if needed.
19. Add a good tune to the ECM for more power and better fuel economy.
Some free DYI tunes are available on LOSTJeeps.com Web site.
viewtopic.php?f=98&t=7841820. Hub bearings, front driveshaft CV joints, and front drive axle CV joints, rear U-Joints as needed.
21. Add an additional transmission fluid cooler and a deeper sump transmission oil pan, especially if you are towing heavy loads in high temperature conditions.
There are some more, but this is a good starting point....
**List not all inclusive but covers most of the main or known failure/problematic items & areas.
‡ Total removal of the CAT and EGR items may not be possible depending on your location and whether or not your vehicle has to endure an inspection. If it does there are some workarounds for both items to disable them completely but leave them in place for visual inspection purposes!