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Old 05-25-2012, 06:31 PM
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3.6 V6 Idling too fast

I start my car every morning with the remote starter so it can run about 3 to 5 minutes and get properly warmed up before I get in and drive off.

This morning I didn't notice it right away that it was idling fast but it did notice it sounded louder then normal in the driveway.

When I put it into gear it doesn't jerk or anything.

Since this morning each time I start the car the idle shoots up and takes more than a minute to before it slows down to the bottom of the green section in the tachometer. This has been happening whether the car is warmed up or not.


Has anyone else experience this racing idle that seem to be 500 rpm higher than it used to? I was hoping someone had taken their car in before so I could tell the service guys what to look for, this is weird that a car with just over 4,000 miles could be having some sort of vacuum leak so early. I hope it registers a DTC so they can narrow down the cause.
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Old 05-25-2012, 08:11 PM
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Re: 3.6 V6 Idling too fast

Check for a vacuum leak?
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Old 05-25-2012, 08:23 PM
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Re: 3.6 V6 Idling too fast

my 3.6 does this as well...
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Old 05-25-2012, 08:35 PM
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Re: 3.6 V6 Idling too fast

X2
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Old 05-25-2012, 08:45 PM
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Re: 3.6 V6 Idling too fast

x3
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Old 05-25-2012, 08:49 PM
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Re: 3.6 V6 Idling too fast

x4
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Old 05-26-2012, 06:21 AM
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Re: 3.6 V6 Idling too fast

Now I will have to wait until tuesday to take it in service does not open on Saturdays
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Old 05-27-2012, 12:04 AM
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Re: 3.6 V6 Idling too fast

It could just be doing that when the engine is colder than usual, how high is the high idle you are talking about?
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Old 05-27-2012, 03:16 PM
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I have a somewhat related issue: when I start the Jeep in the morning there have been a couple of times when I accidentally hit the accelerator as I am putting on my seatbelt or whatever. Now most cars if this happens I hear the revs go up and move my foot no big deal. The Jeep however will keep revving up to about 4k rpm and stays there. I don't know how long it stays "stuck" but at least 15-20 seconds. I have tried hitting the gas again and hitting the brake, but the only thing that seems to work is if I shift to drive. Then the RPMs will drop to normal idle. It's almost as if the first bump puts it into an anti stall mode or something but it doesn't recover very quickly at all. Any ideas why it would do this?
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Old 05-27-2012, 03:38 PM
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Re: 3.6 V6 Idling too fast

Quote:
Originally Posted by Schweibs View Post
It could just be doing that when the engine is colder than usual, how high is the high idle you are talking about?
This.

I've never owned a car that didn't idle higher than normal when the engine is started for the morning.
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Old 05-27-2012, 04:36 PM
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Re: 3.6 V6 Idling too fast

Why are you letting you car warm up for 3-5 minutes? No need to in any modern vehicle. Just get in drive.

The idle speed on my V6 GC is similar to my Element on start up. Idle speed does drop.
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Old 05-27-2012, 04:41 PM
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