Re: No power over 2000rpm
Just do searches for swirl motor, swirl system, crank case vent, CCV filter, CCV Mod, elephant hose mod, Provent, Racor, oil catch can, and you'll find all the info you need. This is a very common problem with these engines. Look thru other threads here and other forums and you'll learn all you need to know.
In a very, very short explanation, the issue is that oily crank case vapors that are recirculated into the engine foul up the swirl system. The swirl system is what helps aid/control combustion inside the cylinders.
2008 Grand Cherokee Limited 2wd CRD-InMotion Stage 2 Tune, K&N Air Filter, Elephant Hose CCV Mod, Gutted Turbo Resonator, MBRP Pro Series Exhaust