NHTSA Complaint #11514348 — 2022 JEEP GRAND CHEROKEE 4XE

Having less than 3K miles in the odometer, the engine started to develop valve train noise that worsens as the engine gets hotter, taken to the dealership to check on the concern plus no start, had the battery replaced after staying 3 weeks in the dealership, supposedly the noise was normal, took it to another dealership as the first one left a few things not fixed, once again i was told the noise was normal, The noise started to get louder as miles were being put on the car, people would ask if the car was a diesel powered one, even the service advisor of the dealership were the car remains asked me if the engine was diesel when she heard the noise. At idling speed the engine is not running smoothly you can hear cylinders misfiring on the exhaust, oil temp remains over 240 when driven, 245 just by pressing the gas to pass a car, oil pressure at idling speed has gone lower as time goes by reaching at times 28 psi. Noise varies when the engine switches in between 8 cyl or 4 cyl mode, in 4 cyl mode the whole car vibrates really bad and loud until you hit the gas to get the engine out of the 4 cyl mode. Service engine light came on once at idling speed when the idling speed became erratic. Engine stalled once. Car in the dealership since Jan 23 2023, was called exactly one month later to pick it up as per they report everything was ok, asked to try another one with the same engine mine has so i could hear the "normal" noise, they had none to check, the shop foreman went on a test ride with me to confirm the issue and then he acknowledged that the noise was weird, so i was asked to leave it, two months already went by and so far no word on the issue, the car has not being further diagnosed by the 'ENGINE EXPERT" will have to go through the lemon law as they just don't say a word or give me options. Grand Cherokee Summit reserve 5.7 Hemi engine. as of today 3/29/2023 still not diagnosed