The engine had smoke coming from under the hood, the technician said the PVC hose was disconnected. I had just picked my jeep up after a year of being at the dealership consecutively and got carbon monoxide poisoning, had to go to my doctor and the emergency room. https://www.jeepgarage.org/threads/2014-wk2-ecodiesel-occasional-smoke-from-under-or-engine-compartment.232597/