How to change Santa Fe's idle speed ?

Discussion in 'Hyundai Santa Fe' started by Jerimiah, May 28, 2007.

  1. Jerimiah

    Jerimiah Guest

    Anybody know how I can change the idle speed in my Santa Fe ?

    Thanks.
     
    Jerimiah, May 28, 2007
    #1
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  2. "Jerimiah" <> wrote in message
    news:f3dtn8$49c$...
    > Anybody know how I can change the idle speed in my Santa Fe ?
    >
    > Thanks.
    >

    Re-program the computer?

    If you want to go up, you may be able to put a physical block in the
    throttle linkage, if you want to go down, I doubt you can do much.
     
    Edwin Pawlowski, May 28, 2007
    #2
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  3. Jerimiah

    Zotto Guest

    Zotto, May 28, 2007
    #3
  4. 'Anybody know how I can change the idle speed in my Santa Fe ?
    Thanks.'

    REPLY: I went thru this with my Hyundai local Service Dept soon after i
    got my 2002 SantaFe as i didnt like the unecessary high revs when the
    car was first started (especially in sub zero temps). They said that
    its just the way it comes from the factory. After a bit of questioning
    and personal exploration, I learned the workings of the device that
    controls Idle Speed on this SUV. Its a black colored device located
    right next to the throttle valve assembly and its held on by 2 bolts
    with a plug in wire harness. It is simple to remove . Inside, there are
    two small holes about the size of a dime. I got some sheetmetal and cut
    a perfect template to fit the entire flanged area of the Device . I then
    made two smaller holes in the sheetmetal directly over the present holes
    in the Device , used sealant on the perimeter of the sheetmetal template
    (both sides), then applied it before putting the Device back on.
    Started up the car, and the idle was too low and nearly stalled the car.
    So, i removed it again , made the holes slightly larger in the
    sheetmetal , and reassembled. Fired up the car and the idle speed was to
    my liking.

    Before, the idle speed when cold, was almost 2,000 rpms and when warmed
    up was 950 rpms. Now, it is 1200 rpms and 800 rpms respectively. I
    picked up 1 mpg more in fuel economy and the transmission shifts far
    smoother when going from Park to Drive and Park to Reverse.

    Dont know if you want to go to the trouble as i did, but its a simple
    permanent cure , doesnt cause any codes to come up, nobody can tell
    from the outside of the Device thats its been altered, and has the
    benefits as i described above.

    Dave
    2002 SantaFe
    2.7 litre
     
    Dave in Lake Villa, May 29, 2007
    #4
  5. Jerimiah

    hyundaitech Guest

    Your idle speed is controlled by computer. *Do not* adjust the cable to
    hold the throttle open as suggested by another poster. This will result
    in other undesireable symptoms and possibly a check engine lamp.

    Why do you wish to change the idle speed?
     
    hyundaitech, May 30, 2007
    #5
  6. Jerimiah

    Jerimiah Guest

    "Dave in Lake Villa" <> wrote in message
    news:...
    > 'Anybody know how I can change the idle speed in my Santa Fe ?
    > Thanks.'
    >
    > REPLY: I went thru this with my Hyundai local Service Dept soon after i
    > got my 2002 SantaFe as i didnt like the unecessary high revs when the
    > car was first started (especially in sub zero temps). They said that
    > its just the way it comes from the factory. After a bit of questioning
    > and personal exploration, I learned the workings of the device that
    > controls Idle Speed on this SUV. Its a black colored device located
    > right next to the throttle valve assembly and its held on by 2 bolts
    > with a plug in wire harness. It is simple to remove . Inside, there are
    > two small holes about the size of a dime. I got some sheetmetal and cut
    > a perfect template to fit the entire flanged area of the Device . I then
    > made two smaller holes in the sheetmetal directly over the present holes
    > in the Device , used sealant on the perimeter of the sheetmetal template
    > (both sides), then applied it before putting the Device back on.
    > Started up the car, and the idle was too low and nearly stalled the car.
    > So, i removed it again , made the holes slightly larger in the
    > sheetmetal , and reassembled. Fired up the car and the idle speed was to
    > my liking.
    >
    > Before, the idle speed when cold, was almost 2,000 rpms and when warmed
    > up was 950 rpms. Now, it is 1200 rpms and 800 rpms respectively. I
    > picked up 1 mpg more in fuel economy and the transmission shifts far
    > smoother when going from Park to Drive and Park to Reverse.
    >
    > Dont know if you want to go to the trouble as i did, but its a simple
    > permanent cure , doesnt cause any codes to come up, nobody can tell
    > from the outside of the Device thats its been altered, and has the
    > benefits as i described above.
    >
    > Dave
    > 2002 SantaFe
    > 2.7 litre


    Thanks.
     
    Jerimiah, May 30, 2007
    #6
  7. Jerimiah

    Jerimiah Guest

    "hyundaitech" <> wrote in message
    news:...
    > Your idle speed is controlled by computer. *Do not* adjust the cable to
    > hold the throttle open as suggested by another poster. This will result
    > in other undesireable symptoms and possibly a check engine lamp.
    >
    > Why do you wish to change the idle speed?


    It's currently "idling" at about 2,000rpm which also causes problems with
    the gear changing.
    In my old car I used to just turn a screw to adjust the idling.

    Cheers.
     
    Jerimiah, May 30, 2007
    #7
  8. Jerimiah

    Bob Guest

    Jerimiah wrote:
    > "hyundaitech" <> wrote in message
    > news:...
    >> Your idle speed is controlled by computer. *Do not* adjust the cable to
    >> hold the throttle open as suggested by another poster. This will result
    >> in other undesireable symptoms and possibly a check engine lamp.
    >>
    >> Why do you wish to change the idle speed?

    >
    > It's currently "idling" at about 2,000rpm which also causes problems with
    > the gear changing.
    > In my old car I used to just turn a screw to adjust the idling.
    >
    > Cheers.
    >
    >

    I also miss the days when I could turn a screw to adjust the idle and if
    your engine stopped running you could quickly diagnose and fix it.
    They're over. Rigging up something to change your idle speed is asking
    for trouble. Hyundaitech said it best- it WILL result in other
    undesirable symptoms. The reason it idles fast sometimes is to warm it
    to operating temperature quickly, saving fuel and reducing pollution.
    Turn your radio up and know the computer is doing it's job well.
     
    Bob, May 30, 2007
    #8
  9. "Jerimiah" <> wrote in message
    >> Why do you wish to change the idle speed?

    >
    > It's currently "idling" at about 2,000rpm which also causes problems with
    > the gear changing.
    > In my old car I used to just turn a screw to adjust the idling.
    >


    Ah, then you don't want to change the idle speed, you want to fix the
    underlying problem. Yes, there is something wrong if it is idling at 2k
    rpm. There can be a lot of reasons for that, such as sticking throttle
    linkage, bad sensors, broken vacuum lines, etc.
     
    Edwin Pawlowski, May 30, 2007
    #9
  10. Jerimiah

    Zotto Guest

    Zotto, May 30, 2007
    #10
  11. "Bob" <> wrote in message
    news:...

    > I also miss the days when I could turn a screw to adjust the idle and if
    > your engine stopped running you could quickly diagnose and fix it. They're
    > over.


    I don't miss them at all. Last time I had a car quit on my was my '83 Olds
    Cutlass with 150,000 miles on it. Last time I had to fiddle with an idle
    screw was, well, a very long time ago. Overall, the reliability of today's
    engines and the amount of "tuneup" they need is far superior than anything
    from the good old days.
     
    Edwin Pawlowski, May 30, 2007
    #11
  12. Jerimiah

    hyundaitech Guest

    Probably not. Air temp is a minor player in fuel management. Coolant temp
    is a much more likely cause.
     
    hyundaitech, May 30, 2007
    #12
  13. Jerimiah

    hyundaitech Guest

    I'm with Edwin. If your idle continues at 2000 RPM anytime other than
    immediately after a cold start, there's something wrong that needs to be
    corrected. You might start by checking for vacuum leaks or, if your check
    engine lamp is on, having the codes read.
     
    hyundaitech, May 30, 2007
    #13
  14. Jerimiah

    Zotto Guest

    Zotto, May 30, 2007
    #14
  15. Jerimiah

    Guest

    On May 30, 8:38 am, "Edwin Pawlowski" <> wrote:
    > "Bob" <> wrote in message
    >
    > news:...
    >
    > > I also miss the days when I could turn a screw to adjust the idle and if
    > > your engine stopped running you could quickly diagnose and fix it. They're
    > > over.

    >
    > I don't miss them at all. Last time I had a car quit on my was my '83 Olds
    > Cutlass with 150,000 miles on it. Last time I had to fiddle with an idle
    > screw was, well, a very long time ago. Overall, the reliability of today's
    > engines and the amount of "tuneup" they need is far superior than anything
    > from the good old days.


    To an extent, you're both right and wrong.
    Today, if your late model car dies, (even if you only run out of gas
    and burn up the electric fuel pump) you're completely fucked.
    No more looking for a wire or hose that came loose.
    Just have it towed to a dealership for one of those $1000 fixes (if
    you're out of warranty)----------HAL
     
    , May 31, 2007
    #15
  16. 'Yes, there is something wrong if it is idling at 2k rpm.   There can
    be a lot of reasons for that, such as sticking throttle linkage, bad
    sensors, broken vacuum lines, etc.'

    REPLY: Not according to my local Hyundai Dealerships Service Dept ;
    they said 2000 rpms upon a cold start is how it comes from the factory
    and no external anomoly is causing it.
     
    Dave in Lake Villa, May 31, 2007
    #16
  17. 'Today, if your late model car dies, (even if you only run out of gas
    and burn up the electric fuel pump) you're completely fucked.'

    REPLY: Id like to respectfully call to your attention that using the
    'F' word to dialogue on a mechanical issue (or any issue) is improper as
    it is a vile , derogatory, and offensive to many including myself.
    Would i be out of line by asking you to please refrain from pretending
    it is a correct manner of speech ??? Thanks for your consideration in
    this matter.
     
    Dave in Lake Villa, May 31, 2007
    #17
  18. "Dave in Lake Villa" <> wrote in message
    news:...
    'Yes, there is something wrong if it is idling at 2k rpm. There can
    be a lot of reasons for that, such as sticking throttle linkage, bad
    sensors, broken vacuum lines, etc.'

    REPLY: Not according to my local Hyundai Dealerships Service Dept ;
    they said 2000 rpms upon a cold start is how it comes from the factory
    and no external anomoly is causing it.

    But there is a difference between start up and normal idling. He did not
    mention it was only at starup, but did give the impression it was constant.
    Perhaps clarification is needed.
     
    Edwin Pawlowski, May 31, 2007
    #18
  19. Not according to my local Hyundai Dealerships Service Dept ;
    they said 2000 rpms upon a cold start is how it comes from the factory
    and no external anomoly is causing it.

    'But there is a difference between start up and normal idling. He did
    not mention it was only at starup, but did give the impression it was
    constant. Perhaps clarification is needed.'

    REPLY: Perhaps he could clarify for us, but, I think he would have
    indicated 'all of the time' if it were not just upon cold startup.
     
    Dave in Lake Villa, May 31, 2007
    #19
  20. "Dave in Lake Villa" <> wrote in message
    >
    > REPLY: Perhaps he could clarify for us, but, I think he would have
    > indicated 'all of the time' if it were not just upon cold startup.
    >


    I think he would have said "on startup" if it was not happening all the
    time. Startup speed in influenced by temperature and what used to be choke
    settings for a richer mixture. That is all computer controlled now, of
    course, My impression is that you set the idle for a normal run speed as
    opposed to a startup situation.

    I guess clarification is needed rather than the generic, "how do I change
    idle speed"
     
    Edwin Pawlowski, May 31, 2007
    #20
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