If you are not able to login to the forum, please Contact Us here to let us know. Thanks!

Support FSC and see no ads! - Click Here
Results 1 to 5 of 5

1998 chevy 350 high idle

This is a discussion on 1998 chevy 350 high idle within the Technical / Maintenance forums, part of the General Discussion category; I have a 98 chevy 350 cpi with a very high idle at all time s but no ses lite?...

  1. #1
    Registered User
    Join Date
    Oct 2008
    Location
    Mi
    Age
    62
    Posts
    4

    1998 chevy 350 high idle


    Support FSC and see no ads! - Click Here
    I have a 98 chevy 350 cpi with a very high idle at all time s but no ses lite?

  2. #2
    Registered User
    Join Date
    Oct 2008
    Location
    ILLINOIS
    Posts
    33

    Re: 1998 chevy 350 high idle

    There's a sensor in the throttle body that often gets covered in black deposits. Do a search for sensor cleaner or similar posts as yours. Good luck.

  3. #3
    Owner of all GM products 83Custom10's Avatar
    Join Date
    Sep 2007
    Location
    palm bay fl
    Age
    23
    Posts
    462

    Re: 1998 chevy 350 high idle

    u can take it to the dealer and have it adjusted but have you added a k&n or exhaust?does your throttle ever stick?
    8.1L vortec 496ci big block avalanche with 6 inch lift 35 bfg mud terrians tuned .yea its quick an can haul almost anything click link to see my beast
    http://www.facebook.com/photo.php?pi...&id=1586263916[

  4. #4
    Can I help you? ksukats57's Avatar
    Join Date
    Oct 2007
    Location
    Kansas City
    Age
    22
    Posts
    2,266

    Re: 1998 chevy 350 high idle

    Could be the IAC valve sticking


    2006 Tahoe Z71

  5. #5
    Registered User
    Join Date
    Dec 2005
    Location
    Linden, NC
    Posts
    1,051

    Re: 1998 chevy 350 high idle

    Have you checked for a vacuum leak? Take a can of carburetor cleaner and spray around the intake manifold, the TB, and all vacuum lines. If the engine speeds up, you'll have found your leak.
    Last edited by JohnO356; 10-08-2008 at 05:43 PM.

 

 

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •