I have a 2000 Monte Carlo, recently my engine light came on in addition to my coolant temperature sensor and tire pressure sensor. My car started to cut off while driving and while at stop signals. I replaced the mass air flow sensor and was told my coolant temp sensor was broken. Though, my car CONTINUES to cut off and the car shop "cannot figure out the problem". Its been 3 DAYS and I am desperate for some advice. What sensor is making my car cut off??????

 

Does the car slowly lose RPMs and then hit about 500 and drop to 0 and stall? But if you give it gas it will stay alive?

I would say it's the Idle Air Control valve on your throttle body.

 

Yes, I just checked with the auto shop and they're checking that now. They told me that my car cuts off when warm, but stays on when cold. Could that be the Idle Air Control?

 

I was just told that they changed the sensor for the idle air control and that my car is still "running rough"....I just don't know where to go from here

 

I would check the hoses running to and from the pcv valve for gunk , then put a new pcv valve in. I had a similar problem with my last car.

 

had some what similar problem it turn out to be a cracked vaccum line

 

Did you figure out the problem with your Monte? Mine is doing the same thing