1. Welcome to PlowSite. Notice a fresh look and new features? It’s now easier to share photos and videos, find popular topics fast, and enjoy expanded user profiles. If you have any questions, click HELP at the top or bottom of any page, or send an email to help@plowsite.com. We welcome your feedback.

    Dismiss Notice

2000 blazer 4.3l not starting, smokes thru intake

Discussion in 'Chevy Trucks' started by meyer22288, Mar 2, 2010.

  1. meyer22288

    meyer22288 Senior Member
    Messages: 999

    my friend has a 2000 chevy blazer zr2, 4.3l, he was driving it until last week, he parked it, and now it wont start, it just turns over and when you let go of the key, the engine blows smoke out of the intake, and appears to be spinning backwards when it does it for a second. any ideas, reply here, or text my friend, 845 406 5103.

    Thanks guys
     
  2. jb1390

    jb1390 Senior Member
    Messages: 710

    See if it has any codes. Either get a code reader, borrow one, or something. Could be a bad cam sensor, crank sensor, etc etc.
     
  3. meyer22288

    meyer22288 Senior Member
    Messages: 999

    doesnt show any cod:help:es
     
  4. jb1390

    jb1390 Senior Member
    Messages: 710

    Can you hear the fuel pump running when you turn the key on? Are you positive it is not out of gas? (not trying to be insulting-worse things have happened)

    If you can hear the fuel pump running, then it is basic diagnostics. Hit the schrader valve on the fuel line towards the back of the engine and see if there is decent pressure. Fuel should spray out fairly forcefully (wear eyeglasses). If you have fuel pressure, then it is time to check spark-find a buddy you don't like, have him take a spark plug wire off, hold it in one hand while touching the engine anywhere with his other hand. If he yells, then you have spark. Alternately, you can use an old spark plug to do the same test. If you have spark and fuel pressure then post back.
     
  5. Newdude

    Newdude Senior Member
    Messages: 878

    Would you be able to ask if he did any engine work lately?