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Warm up / High Idle

Discussion in 'Performance' started by Chucklehead, Nov 14, 2021.

  1. Nov 14, 2021 at 3:45 PM
    #1
    Chucklehead

    Chucklehead [OP] Enjoy the ride! You only get one trip

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    The Runner has a very noticeable high idle at start up. Notice it steps down reasonably quick so far … suppose its temp dependent though.
    Ive noticed after letting it step down and i back out and put in drive it seems to be a pretty high idle still as it jumps a bit.

    wondering, how long others sit at idle before switching into gear?
     
    Thatbassguy likes this.
  2. Nov 15, 2021 at 12:28 PM
    #2
    PhantomTweak

    PhantomTweak New Member

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    Patrick
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    None. Bone Stock. EXCEPT: Brushguard, tow hitch, both welded to the frame. It's good to have friends and a fully equipped garage!
    In my 99 'Runner, I start it up, make sure no idiot lights are going to come on, fasten my seatbelt, set the temperature controls, make sure my lovely wife is all set and buckled in, all told give it about 5 mins.
    Then, as my house is in a subdivision with dirt roads, and a 15 MPH speed limit, and I live at the top of a hill, I let the high idle take me down to my mail box at the entrance to the subdivision. About 5 min under a load as the truck idles along right about the speed limit, in 2nd gear. I let it sit while I grab the mail, say a 3rd 5 Mins.

    SO, by the time I actually hit the paved roads, about a 15 minute warm up. If the temp gauge isn't at normal operating temp by then...
    AND the idle is down to the normal, warmed up value. Say about 750-800 RPM on the gauge set's tach.

    That's how I do mine...
    Pat☺
     
    Copperjead don't play likes this.
  3. Nov 15, 2021 at 1:03 PM
    #3
    banjos-n-beer

    banjos-n-beer New Member

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    High idle at startup is usually emissions related. It’s heating the catalytic converters up. Nothing unusual.
     
  4. Nov 15, 2021 at 1:23 PM
    #4
    Thatbassguy

    Thatbassguy New member? Really??

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    I wait about 15 seconds from start-up when it's warm out. In colder weather, I wait a bit longer. When it's really cold (single digit or negative. Fahrenheit, I try to wait until I see the temperature needle start moving.

    There's really no need to "warm up" a vehicle any more. However, it's good to go easy on it until it reaches normal operating temperature.
     
  5. Nov 15, 2021 at 1:46 PM
    #5
    banjos-n-beer

    banjos-n-beer New Member

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    I only warm up a vehicle if it allows me to see. Other than that, start it, wait 5-10 seconds, basically for Bluetooth connection, then go. Just don’t mash the gas until it’s warmed up. These vehicles still have an analog temperature gauge. Appreciate it before it’s gone.
     
  6. Nov 18, 2024 at 10:21 AM
    #6
    RepentOrPerish

    RepentOrPerish New Member

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    After cleaning my throttle body and having the truck relearn the idle, mine starts up around 1200rpm, was 1500 before cleaning the TB.
     
  7. Nov 18, 2024 at 11:30 AM
    #7
    wildgoose

    wildgoose New Member

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    If it bucks or lunges at all when putting it in drive there is a high chance you have a vacuum leak. Check the drivers side ventilation hose. Mine was acting weird until I replaced that ventilation hose, disconnected the battery over night and then let the truck relearn its idle.
     
  8. Nov 18, 2024 at 12:16 PM
    #8
    Captain Spalding

    Captain Spalding . . .

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    I wait about 15 seconds as well. I have no actual reasoning to back this up. I’d love to say something erudite about waiting for the VVTi system to pressurize and unlock, but I haven’t connected all the dots on VVTi function yet.
     
  9. Nov 18, 2024 at 2:35 PM
    #9
    thomason84

    thomason84 New Member

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    Bilstein 8112 lift Magnuson Supercharger YotaWerx Stryker+ tune Sherpa Crestone rack Lots of other small stuff
    Waiting for a few seconds is good practice just to make sure oil get to all parts evenly. Modern cars can crank and go but they have oil squirters and such to assist in this process. Waiting till warm is t necessary though.
     
  10. Nov 28, 2024 at 2:10 PM
    #10
    3JOH22A

    3JOH22A トヨタ純正男娼

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