Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: Car will not return to idle!
          
   
   

Reply To Thread
Results 1 to 4 of 4
  1. 07-05-2007 12:04 AM #1
    4speedTerror's Avatar
    4speedTerror
    4speedTerror is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Sep 2003
    Location
    Jonesboro
    Car Year, Make, Model: 73 Z28
    Posts
    93

    Car will not return to idle!

     



    Ok I have a Mighty Demon 850 mech. secondaries. You have to keep an eye on her when she is warming up to keep her from dying. Once the car is warm it idles at 1200rpm....which is where I want it, it has a pretty aggressive cam.
    When you take the car out to drive after warm-up is when the idle seems to have a mind of its own. At the first stop light (maybe 2 miles of driving) the car will have an idle of 1500rpm.....then when I am approaching another stop after about 15 minutes of driving I will got to stop, and the idle will fall to 700rpm. Even when i blip the throttle it will not return to my origional set idle.
    Other than that the car runs perfect.
    This is a 4 speed car, and as soon as i push in the clutch the car just picks its own idle...lol

    Very frustrating....
    I love to stroker
    Reply With Quote Reply With Quote
  3. 07-05-2007 12:11 AM #2
    techinspector1's Avatar
    techinspector1
    techinspector1 is offline CHR Member
    Visit my Photo Gallery
    Join Date
    May 2003
    Location
    Zephyrhills, Florida, USA
    Car Year, Make, Model: '32 Henway
    Posts
    12,423

    Install a good throttle return spring.
    PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
    Reply With Quote Reply With Quote
  4. 07-05-2007 05:25 AM #3
    R Pope
    R Pope is offline CHR Member
    Visit my Photo Gallery
    Join Date
    Jun 2005
    Location
    Eston
    Posts
    2,270

    A sticking spark advance can cause the idle speed to do that.
    Reply With Quote Reply With Quote
  5. 07-05-2007 07:53 AM #4
    Dave Severson
    Dave Severson is offline CHR Member/Contributor
    Visit my Photo Gallery
    Join Date
    Jul 2003
    Location
    Madison
    Car Year, Make, Model: '67 Ranchero, '57 Chevy, '82 Camaro,
    Posts
    21,160

    Does it have a choke and fast idle cam? Could be the fast idle cam is not working properly.....
    Yesterday is history, tomorrow is a mystery, Live for Today!
    Carroll Shelby

    Learning must be difficult for those who already know it all!!!!
    Reply With Quote Reply With Quote
Reply To Thread

Posting Permissions

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

Forum Rules

Links monetized by VigLink