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Unread 08-14-2011, 03:25 AM   #1
Luch466
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2008 KK Liberty 
 
Join Date: Aug 2011
Location: Maple, Ontario
Posts: 11
08 Liberty Rough Idling in "Drive"

I've noticed lately that my 08 Jeep Liberty has been rough idling while at a stop sign or intersection. It makes the car vibrate aggressively sometimes and gets really annoying. What is the cause of this rough Idling and how can I fix it?

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Unread 08-14-2011, 05:45 PM   #2
SuperRliBerty
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2008 KK Liberty 
 
Join Date: Jan 2010
Location: Florida
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I had cleaned my throttle body and replaced the stock plugs with Bosch Platinums...... rock steady idle in park, reverse or drive.

Try those.

If no CE light, the EGR and it's operation are to be checked.
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2008 Sport Liberty
Cold air intake*Trush (magnaflow) turbo muffler* Hypertech power program*
Hood Prop mod. Battery Quick Release mod.
Resonator removed (sounds like a V8 on start up)
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Unread 08-14-2011, 11:51 PM   #3
Luch466
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Location: Maple, Ontario
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Quote:
Originally Posted by SuperRliBerty View Post
I had cleaned my throttle body and replaced the stock plugs with Bosch Platinums...... rock steady idle in park, reverse or drive.

Try those.

If no CE light, the EGR and it's operation are to be checked.
I am Coming across 2 kinds of Bosch Platinum. There is the Bosh Platinum and then Bosch Plantinum +4. What is the difference?
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Unread 08-15-2011, 05:21 AM   #4
Elt31987
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Location: Stoneham, Massachusetts
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Just put in the stock NGK plus, Clean the throttle Body and Injectors, and replace air filter if over 12K with a standard FRAM Double Guard
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2008 KK Liberty
Inferno Red
Daystar 2" Spacer Lift With SkyJacker Hydro Shocks
JBA Gen 5.5 Upper Control Arms
Rokmen Riddler 8.25 Differential Cover
2 KC Slimlite 100 Watt Driving Lights on JK Light Bar
245/75/16 All Terrains
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Unread 11-22-2011, 10:58 AM   #5
dtj8995
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Join Date: Oct 2011
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had your same problem...perplexed me...turned out to be the plug coil for my cyl 4 ...25 dollars later and 5 minutes of work my issues was gone...used the same bosch plugs and everything... check the coil
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