The engine of my 2010 buick regal gs 3.8l super charged engine shutsoff while im driving..primarillary when i slow down t make a turn or stop 4 a red liught luckilly it5 restarts but its scary

Remove the air cleaner intake tube and buy some throttle body cleaner spray on a rag open throttle manually and clean the most carbon you can from around the flap.
If you remove the throttle body and clean it outside of vehicle it will be much better.
If the intake is plastic then you will have rubber o ring behind throttle body no need to replace it is reusable.
If the intake is aluminum then it will have paper gasket and the possibilitys of breaking it is high. So if you decide to remove make sure someone has gasket in stock whether its dealer or local autoparts.

Idle air control is built in to throttle body it gets excessive carbon deposits if you use low octane fuel like (87) when it fills with carbon it restricts the air amount at closed throttle and cause car to shut off.
Email me at [email protected] if you have more questions.

If something is wrong with the speed,then the transition needs repair/replacing.Most likely.

Check clutch drive on AC compressor.

Most likely the steering rack is failing & you hear
the power steering pump straining

Happens when you don't change the fluid every 3 years

Also the top strut bearings could be worn & causing the
stiffness also (two problems)

this could be an alternator noise like the bearings.or it could be a bearing in the super charger.try changing the oil for the super charger and see if it helps especially if it hasn`t been changed.

yes only one fan is supposed to work, the other fan is for ur a/c. it shouldent be to hard to tighten down that spark plug if its loose. that wud cause some problems though if it was loose

Your fuel pump ballast resistor is bad if it's a super charged engine. you will find it behind the battery other side of the wall kind of hard to find. it's a large white ceramic rectangle this takes the load from the fuel pump allowing it to run.

Try changing the map sensor it controls idle and it could affect your car like that...........

check one of your coolant sensor's

check to see if u have any power to ur pcm