In 12/01/2012, I had "complete" maintenance done which included:
REPLACE SPARK PLUGS
REPLACE SERPENTINE BELT
REPLACE PLASTIC TENSIONER & IDLER PULLEYS
REPLACE PCV VALVE
OIL CHANGE AND FILTER
INSPECT HOSES, ETC
INSPECT BALL JOINTS
FLUSH POWER STEERING SYSTEM
DRAIN AND REFILL TRANSFER CASE
DRAIN AND REFILL FRONT AND REAR DIFFERENTIALS
CHANGE TRANSMISSION FLUID & FILTER
CHANGE TRANSFER CASE FLUID
First what coil springs did you go with ? OR what lift did you use?
And you used the Monroe shocks with new springs, yes only a couple of weeks but if your springs were really sagged it could of put extra stress on them until you install the new ones
Have you checked your sway bar bushings? They will make noise when it starts getting colder , need to replace with stock or sometimes just taking them out and cleaning the first out will take care of any noises
04 Liberty, Kilimanjaro Edition, Rock Lizard RockRails/Roof Rack/Front-Rear bumper,32 inch Goodyear Duratracs,Moabs,4.10s/ 4.25 inch JBA Coilover lift /other goodies
Kudos for keeping and sharing maintenance records when you have a problem. It sounds like you take care of the baby, or try to. I'd tend to agree with swaybar bushings. Mine currently make noise, I just ignore them for the time being,lol. They'll make a crunching like sound anytime the front suspension is moving up and down together, ie speed bumps and railroad tracks. Can lube them with silicone spray, or just replace them. I also see another issue. You installed lift springs, and lifted the vehicle? Monroe's mainstream shock and strut, the sensatrac, is picky about ride height. If you are over stock height, it will cause it to be overly soft, when it should be firm, and too firm when it should be soft. Not a good choice for altered suspension systems.
I'd address the sway bar bushings, spray some lube on them and see if it goes away. That'll confirm the source of the problem. As I said before, sensatracs are ride height dependent to work properly, to get the best ride possible you need better shocks.
I took my Liberty to the dealer but they could NOT duplicate the problem but they checked "EVERYTHING everything" and found nothing wrong (no broken parts, loose parts, worn parts, knocking parts, etc).
I then took my Liberty to my tire shop that installed the tires, shocks and struts, coil springs and lift kit. They were able to duplicate the problem and they replaced the sway bar bushings and the problem is GONE!!!