Chevrolet: 1994 chevy blazer, blazer s10, chevy blazer

Question
Hello Mr. Warrington. I own a 94 chevy blazer s10 4.3 L v6. I have lately been having trouble with shaking. My car is shaking when idle. The steering wheel shakes. When i start driving i do not notice it so i assume it is only when idle. I am not sure what it might be. I am thinkig maybe EGR since i failed emissions test, or maybe the PCV valve. I am unsure. Any help would be appreciated. thank you


Answer
LLAZAR ;
    Hi , well it sounds as if something is dirty or pluged , it could be a lot of things, when you say that the car failed the insp. what was the reason ? it might be the MAP sensor. the service man should have told you what it was that is causing it to fail. I would find out what it is that is causing it to fail the insp. and replace it.  ok