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328 Idling High

Discussion in 'Technical Q&A' started by alert1, Sep 11, 2005.

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  1. alert1

    alert1 Karting

    Mar 17, 2005
    104
    #1 alert1, Sep 11, 2005
    The car is idling a 3k rpms. Looks like the throttle is sticking a little on the engine. Spray it with WD-40? There's a screw there too... should something be adjusted??
     
  2. jvbjr

    jvbjr Formula Junior
    BANNED

    Aug 19, 2005
    418
    #2 jvbjr, Sep 11, 2005
    Something new or did you buy the car like this?
     
  3. alert1

    alert1 Karting

    Mar 17, 2005
    104
    #3 alert1, Sep 11, 2005
    new... just happened
     
  4. bwassam

    bwassam Formula Junior

    Jan 3, 2005
    635
    North Bend, Oregon
    Full Name:
    Robert Wassam
    #4 bwassam, Sep 11, 2005
    I have a similar problem with my 308. It would start and run OK and then as it warmed up the idle would go to 2000. I thought it was the carbs and took it to the shop and they determined that it had a vacuum leak between the manifold and the head. The pulled the manifold and there was corrosion on the manifold where it meets the head. They added some material to the manifold surface and then milled the manifold. I got the car back and it still does the same thing. So I don't know what's going on with it.

    That said, I suggest to see if there's a vacuum leak in your system. Hopefully, you'll get lucky and just have to reconnect a hose.

    Good Luck. I can feel your anguish.

    Bob Wassam
     
  5. alert1

    alert1 Karting

    Mar 17, 2005
    104
    #5 alert1, Sep 11, 2005
    I think (hope) that the problem is with the assembly where the throttle cable attaches to the engine. It seems to be sticking.
     
  6. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    #6 f355spider, Sep 11, 2005
    No kidding...check your floor mats...make sure they are not sliding forward and pushing on the gas pedal. Both my 308 and 328 did this. I little velcro fixed them from sliding forward. Fixed my sudden "high idle" problem!
     
  7. jvbjr

    jvbjr Formula Junior
    BANNED

    Aug 19, 2005
    418
    #7 jvbjr, Sep 11, 2005
    And i didn't need brakes every 2,000 miles anymore!
     
  8. PT 328

    PT 328 F1 Rookie
    Silver Subscribed

    May 1, 2005
    4,016
    #8 PT 328, Sep 11, 2005
    This happened to mine a couple months ago. It was an easy fix at the throttle cable ( at the throttle body ). I used some motorcycle cable lube and haven't had a problem yet.
     
  9. scott1967

    scott1967 Karting

    Jul 12, 2004
    148
    Tampa, FL
    Full Name:
    Scott
    #9 scott1967, Sep 12, 2005
    Similar to davehanda above, my fast idle was casued from the floor mat moving forward and pushing against the gas pedal.

    scott
     
  10. alert1

    alert1 Karting

    Mar 17, 2005
    104
    #10 alert1, Sep 12, 2005
    it was the floor mats!
     
  11. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    #11 f355spider, Sep 12, 2005
    I knew it! Don't worry, this thread gets started at least two or three times per year.
     

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