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Thread: Engine idles at 1500 RPM's at startup until coolant level reaches 197 degrees

  1. #1
    Knows a Thing or Two DMF's Avatar
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    Engine idles at 1500 RPM's at startup until coolant level reaches 197 degrees

    I did a quick google search and someone from Jeep stated this was not normal and should be look at. The problem is when I start up my engine in the morning, I have the 4 banger. The engine RPM runs at 1500 until the coolant level reaches a certain temperature. This usually takes 3 minutes before the engine RPM drops down below 1000 RPM. However I only let the engine warm up for about 30 seconds before I head out. But from what this person said, should I take the Jeep in, what do you guys think?

    Edit
    I feel dumber after posting this. Jeep is under warranty, there's other things to worry about.
    Last edited by DMF; 12-19-2019 at 09:52 PM.

  2. #2
    Addict jeeeep's Avatar
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    Don't know, doesn't seem abnormal if it drops off pretty quick.

    I'll need to pay attention to my JL when I start it up in the morning.

    Seems it does idle high and starts blowing heat pretty quick but haven't noticed the idle staying high for any extended period of time that I would consider abnormal.

  3. #3
    Meme King WJCO's Avatar
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    Typical idle speed is 750-850 RPM. If it sits that high, I would just take it in and see what they say. It should definitely be under warranty.
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  4. #4
    Hooked Noble Woodsman's Avatar
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    Idling high after starting is normal until the coolant temperature increases. Not sure about how high the idle should be. How long it remains high would depend on how cold the engine starts at.


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  5. #5
    Knows a Thing or Two DMF's Avatar
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    I’ll post a video when I get home. It won’t be until after Christmas.


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  6. #6
    Hooked BlueRubicon's Avatar
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    Quote Originally Posted by DMF View Post
    I did a quick google search and someone from Jeep stated this was not normal and should be look at. The problem is when I start up my engine in the morning, I have the 4 banger. The engine RPM runs at 1500 until the coolant level reaches a certain temperature. This usually takes 3 minutes before the engine RPM drops down below 1000 RPM. However I only let the engine warm up for about 30 seconds before I head out. But from what this person said, should I take the Jeep in, what do you guys think?

    Edit
    I feel dumber after posting this. Jeep is under warranty, there's other things to worry about.
    Is this your first car?

  7. #7
    Knows a Thing or Two DMF's Avatar
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    Quote Originally Posted by BlueRubicon View Post
    Is this your first car?
    No


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  8. #8
    Resident Smartass OverlanderJK's Avatar
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    Quote Originally Posted by BlueRubicon View Post
    Is this your first car?
    Quote Originally Posted by DMF View Post
    No


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    Lol


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  9. #9
    Knows a Thing or Two DMF's Avatar
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  10. #10
    Meme King WJCO's Avatar
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    I don't see anything abnormal in that video. Maybe I'm not understanding the question.
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