2019 ford mustang gt 5.0l with 10 speed automatic transmission milage: 14,000 -engine stalls when car comes to a stop (happened more than 10 times). -harsh transmission shifting from 4th to 5th. -dipping and irritating rpm when idle. -exhaust sound valve squeaking noise (like the sound when the metal has corrosion squeaking sound) while the valve changes from quite to normal or from normal to track. -wheel wining noise shows on or above 40mph (like wheel hub bearing humming sound). -dash and rear driver side rattling noises. -front end bushings squeaking noises (especially can be heard while passing on car parking bumps).
Riding under normal driving conditions, car stalls from a v8 to a v2. no power at all, if you want to switch from normal, to any selectable driving modes from toggle switch or steering wheel, wont change. turn of car, turn it back on and continued with same problem.
While driving my gt350 on a highway at around 55 mph the engine made metallic grinding noises suddenly, and without warning. i instinctively pressed in the clutch pedal and then engine stopped spinning and locked up. i was fortunate to be in an area with a pull-off area and thin traffic. it could have been very dangerous at higher speeds, in thicker traffic, or with a less experienced driver. once stopped, i checked the car and confirmed that the starter could not spin the motor due to mechanical failure. there were only about 450 miles on the vehicle when this happened. i was later told by the dealer that the engine had an issue with a rocker and valve, which caused the engine fail and lock up. a replacement engine also had 'valvetrain noise' and was determined to be no good by the dealer. i did not see or use the car with that engine. beyond that, this issue is still unresolved as the car has not been repaired.