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-   -   06 JGC-L Hard Down Shift and Crazy Idling (http://www.jeepgarage.org/f107/06-jgc-l-hard-down-shift-and-crazy-idling-26940.html)

abmont 08-10-2011 09:15 PM

06 JGC-L Hard Down Shift and Crazy Idling
 
I have a 2006 4.7L V8 that has started to shift very hard when slowing down. The RPM's have also started to jump around when in park, actually causing it to shut off. The check engine light came on a couple of weeks ago and I figured it was the transmission. Had the code read and was told it was actually an Engine code...something about a vacuum leak. A week later, took my jeep in to a mechanic and they cleaned the throttle body...said there was a lot of buildup do to the mileage (103,000). Drove great for a week or so but it just started idling funny again and has down shifted very hard twice. Any suggestions would be greatly appreciated. Thanks.

berk483 08-11-2011 06:47 AM

Re: 06 JGC-L Hard Down Shift and Crazy Idling
 
You might want to re-post this in the WK forum to get more responses. This is for WK2's...2011 and newer.

abmont 08-11-2011 02:58 PM

Re: 06 JGC-L Hard Down Shift and Crazy Idling
 
Thanks. Obviously new to this site!

berk483 08-11-2011 03:27 PM

Re: 06 JGC-L Hard Down Shift and Crazy Idling
 
No problem and welcome.:thumbsup:

lll2for3lll 08-11-2011 03:29 PM

Re: 06 JGC-L Hard Down Shift and Crazy Idling
 
Clean the throttle body or have a fuel system service performed.

Drain and refill transmission and flash/update the PCM.


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