Most likely a dirty throttle body. It affects these trucks seriously and is a very common complaint. Dhoulf br cleaned manualy then the use of a "Top Tier" gasoline and some Techron once in a while will keep it clean.
the car will break or shut off automaticly
no
There are too many codes to list. You must get the code read at a service center to figure out what the problem is. The single most important thing to remember is that if a check engine light is flashing you must shut the vehicle down immediatley.Autozone reads codes for free.
Yes this can cause the engine to shut off. This the main input to the engine ecu.
There are many reasons why a check engine light could come on and shut a Trailblazer off. It could be the fuel pump or the oil pump. A mechanic will be able to run diagnostic tests to figure out the problem.
The truck has had a serious engine code sent to the computer. You can shut it down and try to restart and see if the problem goes away however you must get the code read and find out the cause. It can be many things. www.trailvoy.com Trailblazer/Envoy enthusiasts forum
there isn't one
No, it doesn't have such a switch.
The engine will overheat and can cause severe engine damage. The engine will be completely ruined if it is not immediately shut off.
A bad timing belt could make the engine shut down but it would only happen once, not sometimes.
Failure to maintain the proper engine oil level could result in serious engine damage leading to the engine to shut down.
you blew your engine dude... that sucks sorry