My Chevy is heard as a vocho

Good morning, it turns out that today I was about to go to my chamba and like every day my chevy starts and let it heat for a while but I did not like a noise that I thought I was cold, but I did not take off. It is stunned and running as a vocho someone could tell me where I start to review

HI, FRIEND. Well, a reason for that could be that some sensor could be disconnected or the cable is broken, you could start there. Derrepent that is the cause that your Chevy sounds like this. It is that when some sensor does not work or is disconnected the engine (sensors) do not send them to the computer and the engine is put in protection mode. It could be that .. Ighual I hope this little help serves you.

Good compi.For me the machine is working with a less cylinder and that's why it rates, normal that it sounds ugly and in addition to insurance does not pull the normal. I would start to see if you have a spark in all the cables since sometimes over the years they are split inside, then each spark plug. Distributor cover and rotor etc. The same if you have a moment, throw the engine type like this, it would be good to know if it is injected or carbure

Thank you very effectively the problem was in a spark plug checked sensor connectors and they were fine check to see if I had any fault code and not finally it occurred to me to remove the spark plugs and the cylinder 2 had a bit of carbon in the electrode in the electrode clean them with carbuclin and the problem was solved