Used 2.4l Idle Loud/Rough? - Jeep Renegade Forum
 
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post #1 of 7 (permalink) Old 07-16-2019, 06:57 PM Thread Starter
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Used 2.4l Idle Loud/Rough?

Hello, I posted on an old thread but figured I would ask in a new one as well. Do you find the 2.4l to idle rather loud and with some vibration felt relative to other cars? My 1.4l doesn't idle loud at all, and only has some vibration when cold, but this one was at operating temps and whenever idling while braked or in park, was quite loud. Sounds a bit like a tractor, not in a bad way, and the engine sounded healthy, but I hadn't expected quite the level of noise and vibration. Wondering if the dealership was covering up a potential engine code due to something or if it would be normal for a 70K mile 2.4l Renegade.

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Formerly: 2016 Sport 1.4t in Colorado Red
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post #2 of 7 (permalink) Old 07-16-2019, 07:34 PM
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Shortly after I bought my Renegade, brought it in for shuddering when stopped. Shakes way more than it should. Of course, the dealership said they couldn't replicate the issue. 12,000 miles later, the shuddering is still there. Brought it to another dealer; of course, they said they couldn't replicate the issue.

I know some people have mentioned faulty engine mounts; you might want to check those and the transmission mounts.
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post #3 of 7 (permalink) Old 07-16-2019, 10:07 PM
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It is amazing how many technicians FCA has that are visually and hearing impaired.

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post #4 of 7 (permalink) Old 07-19-2019, 12:48 PM Thread Starter
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It was hard to tell if it seemed like a mechanical issue or if it just idles rougher than I'm used to. I was just curious if, in general, the 2.4l feels like that on idle.

2017 Latitude 4X4, 2.4l Tigershark
Jetset Blue


Formerly: 2016 Sport 1.4t in Colorado Red
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post #5 of 7 (permalink) Old 07-21-2019, 08:45 PM
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could be the multi air solenoids, must use 0-20 oil to work properly, should quite down once oil pressure achieved you do say 70,000 miles, and you may have to replace spark plugs
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post #6 of 7 (permalink) Old 07-22-2019, 05:55 PM
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Quote:
Originally Posted by dgr401 View Post
It is amazing how many technicians FCA has that are visually and hearing impaired.
I have never had that problem. I have always duplicated a problem right there in front of a dealership official. That being said, if I can't duplicate it, maybe they can't either?


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post #7 of 7 (permalink) Old 07-22-2019, 10:13 PM
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the 2.4 multishark is normally noisy compared to lesser engines used by other manufacturers. Remember the multiair actuates the intake valve multiple times for each intake cycle.
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