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

89 chev pickup

Discussion in 'Chevy Trucks' started by tar, May 13, 2004.

  1. tar

    tar Junior Member
    Messages: 28

    heres my question:
    89 chev with a 350, on start up it runs rough till it gets warmed up i mean stat opens. ive replace egr, o2 sensor, ignition module in the dist. and temp. sensor. ive had the computer scanned for trouble codes and ive replaced fuel filter. im wondering about the computer itself. the scantool ive got didnt indicate ecm trouble but im still wondering? any ideas would help thanks
  2. spongebob

    spongebob Senior Member
    Messages: 102

    i would be looking for a vacume leak...runs when its hot but not other wise...or one of those feckin switches that operated by vacume