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  #1  
Old 08-13-2012, 07:34 PM
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4k RPM Redline

Well, not really a 4k redline, but has anyone else noticed that your Jeep has a 4,000 RPM rev limiter when in Park or Neutral?

For sh!ts & giggles I wanted to compare how loud the Jeep was at 6,000 RPM vs my '67, so I downloaded a free SPL app for my iPhone. I cranked up the Jeep and tried to rev to 6k and it stopped revving at 4k. I though that was odd, so I took it out for a spin and hit 6k easily. While coasting, I dropped it into Neutral, revved it and once again it hit 4k and just held steady. I parked it, put it in Neutral, and had the same result.

I've driven a few modern cars that have been rev limited near redline, but never seen one that has such a low limiter in Park/Neutral. Just thought it was odd and wanted to see if anyone else noticed this.
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Old 08-13-2012, 07:48 PM
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Re: 4k RPM Redline

GM's have had that feature for a while. My WJ didn't have it but my WK does go figure.
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Old 08-13-2012, 08:15 PM
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Re: 4k RPM Redline

My Ford Explorer has a park/neutral limit at 3500 rpm.
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Old 08-17-2012, 11:39 AM
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Re: 4k RPM Redline

It is pretty much standard now for cars now not to rev past 3500 rpm in park.

german makes began doing this sometime back in 97 or 98.
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Old 08-20-2012, 07:00 AM
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Re: 4k RPM Redline

i don't see the reason to rev your SUV past 4k in park/N mode - are you trying to impress the neighborhood kids?
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Old 08-20-2012, 09:30 AM
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Re: 4k RPM Redline

Your rods are thankful for the unloaded rev limit.
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Old 08-26-2012, 09:29 PM
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Re: 4k RPM Redline

As others pointed out, it's to keep morons from blowing their engines (and expecting a new one free of charge under warranty).

I don't think I've driven a car from the past 5-7 years without this really.
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Old 08-27-2012, 07:23 PM
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Re: 4k RPM Redline

Quote:
Originally Posted by FAUEE View Post
As others pointed out, it's to keep morons from blowing their engines (and expecting a new one free of charge under warranty).

I don't think I've driven a car from the past 5-7 years without this really.
My previous 2010 BMW M3 would rev to 8,300k (redline) in neutral once the oil temp was normal. But I would expect that from BMW on their M cars.
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