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Thread: Need Advise on ISC Adjustment

  1. #1
    2dfx's Avatar
    2dfx is offline Cadillac Owners Fanatic
    Automobile(s): 2003 Cadillac DeVille
    Join Date
    Jun 2003
    Location
    Ontario, Canada
    Age
    31
    Posts
    397

    Need Advise on ISC Adjustment

    Hey all,

    My ISC motor died yesterday and I was just wondering - can I just adjust the screw on the piston to match the old ISC motor? I went through my haynes manual and found you had to get a tach, apply 12V to one of the terminals to retract it, etc. blah! Way too complicated and I don't want to spend like 70 bucks on a tach!

    Is there an easier way to do this?


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  3. #2
    Join Date
    Jan 2003
    Location
    Newtown, PA
    Age
    58
    Posts
    6,472

    Re: Need Advise on ISC Adjustment

    It's called "min-air adjust" and if you don't do it, the idle and off-idle performance will be questionable at best. You may also see some check engine lights and codes. If you need the procedure, let me know.


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