When i am driving on smooth surface streets sometime there a feel of intermittent juttery ride which feels like you are riding over very small speed bumps very close together. i was told by two (2) mechanics that there is a problem with the transmission that is causing this. i started about two (2) months ago and continue daily.
Engine ceased running at 55 mph. chain of failures- engine valve stem fractured (cylinder # 2), valve dropped into cylinder, piston struck valve, valve deformed to cylinder head, engine ceased properly detonate fuel completely, multiple codes, engine shut off. no advanced signal given to driver, no alarms when engine shut off. power steering and power brakes ceased to work while driving in 55 mph zone, on a turn coming to a red light. extremely dangerous for 5 occupants. failure as shown in pictures below of the valve component are related to a material imperfection. the natural of this failure during the metal forming process was not detected for this component and will exist within other components within my vehicle or other vehicles. once the problem is identified and corrected, engines of the effected vehicles will have to be replaced to avoid this safety issue, as it leads to potential death.
Tl* the contact owns a 2017 cadillac escalade. the contact stated that the vehicle rolled away independently. as a result the vehicle was involved in a rear end collision. there were no injuries and a police report was filed. the vehicle was deemed operable. hove nissan (1405 n kinzie ave, bourbonnais, il) was unable to diagnose the cause of the failure. the manufacturer was notified of the failure and referred the contact to nhtsa. the failure mileage was approximately 17,000.
Hard shifting, shaking, jerking, hesitating shuddering
Tl* the contact owns a 2017 cadillac escalade. while driving various speeds, there was an abnormal shuddering and vibration from the vehicle. the contact also stated that the vehicle failed to shift into gears properly. the vehicle was taken to dale earnhardt jr. buick/gmc (1850 capital cir ne, tallahassee, fl 32308, (850) 270-1453) where it was diagnosed that the torque converter was possibly defective. the vehicle was repaired; however, the failure recurred. additionally, the contact stated that three of the four tires were also replaced; however, the vibration and shuddering persisted. the manufacturer was not notified of the failure. the approximate failure mileage was 6,000. *js