The Jeep Liberty Limited 2003 3.7 is the lemons of all models. Within the first 5 year two major repairs, crankshaft, motor, you name it. Now with the complications of so many sensors that only carry problems to owners.
Now the last one, the oil pressure light doesn't go off, I already did an oil change, filter, flush radiator, new coolant. The motor seems to be fine right now but the oil light keeps coming on.
I have read so many complaints about the same thing, no doubt, the Jeep Liberty cannot be recommended. Today everybody relies on those scanners, just to take your money, making trial and errors, technology advance, but for these dealers and mechanics.