how do i change my idle
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Northstar Engines and System Technical Discussion Discussion, how do i change my idle in Cadillac Engine Technical Discussion; My car is idling a bit low i feel. is there a way to bring the idle up mechanicly? adjust ...
  1. #1
    eyekandyboats.inc's Avatar
    eyekandyboats.inc is offline Cadillac Owners Connoisseur
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    how do i change my idle

    My car is idling a bit low i feel.
    is there a way to bring the idle up mechanicly?
    adjust something on the throttle body?
    2001 DTS BTW
    thanks taylor-

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: how do i change my idle

    Supposed to idle at 625 - 675 in D. 1/8" above the 500 rpm tick.

    Nothing mechanical because idle is controlled by the IAC valve, that black/silver canister on the front side of the throttlebody. Remove it carefully (2 Philips screws) and clean the tip with throttlebody cleaner. A new one is around $275, so tread lightly.................

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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: how do i change my idle

    is there a way to bring the idle up mechanicly?
    No..

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    00 Deville's Avatar
    00 Deville is offline Cadillac Owners Connoisseur
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    Re: how do i change my idle

    Quote Originally Posted by submariner409 View Post
    Remove it carefully (2 Philips screws) and clean the tip with throttlebody cleaner.
    I would stay away from or be extremely careful using throttle body cleaner on the IAC valve... if it gets inside the IAC valve it will eat the insulation off the windings causing it to fail. It's much safer to use an electrical contact cleaner.

    Also...
    - don't attempt to push the plunger in or it may strip the teeth off the worm drive.
    - be careful with the IAC valve gasket... list price is $31 for a gasket the size of a dime.

  6. #5
    eyekandyboats.inc's Avatar
    eyekandyboats.inc is offline Cadillac Owners Connoisseur
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    Re: how do i change my idle

    thanks guys!. it runs about a hair over the 500 rpm mark.
    i will just live with it i guess,

  7. #6
    mtflight's Avatar
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    Re: how do i change my idle

    Did you try a different IPC? it's possible that the RPMs are fine. id' think RPMs so low would set off a DTC, or the car would stall. Try upping your RPMs and while they're at the correct idle, unplug the IAC (so it freezes in that position). If that solves the riddle, the problem was the IAC... just a thought!

  8. #7
    eyekandyboats.inc's Avatar
    eyekandyboats.inc is offline Cadillac Owners Connoisseur
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    Re: how do i change my idle

    why are ther SO MANY OLD THREADS being brought up? wtf?
    and i got my issue fixed.

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