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Unread 01-05-2013, 09:58 AM   #1
ahmedelarabi
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2004 KJ Liberty 
 
Join Date: Dec 2012
Location: Asheville, NC
Posts: 2
Where is bank 1 in jeep liberty 2004 V6 3.7L ?

I need to change my o2 sensor in my car it is bank 1 sensor two I know sensor 2 is downstream but where is bank 1? a read in this forum about that some people say it on driver side and other say it in passenger side and some say bank one at the side of cylinder 1,2,3 and i don't know where these cylinder are , so can some one please tell me where is exactly bank one in my car is it driver side or passenger side ? thank you

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Unread 01-05-2013, 10:02 AM   #2
asim04LJ
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2004 LJ Wrangler 
 
Join Date: May 2011
Location: Sugar Land, Texas
Posts: 428
Bank 1 = Driver side.
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Unread 01-05-2013, 03:02 PM   #3
TwoBobsKJ
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2003 KJ Liberty 
 
Join Date: May 2011
Location: Northern, OH
Posts: 597
Quote:
Originally Posted by asim04LJ View Post
Bank 1 = Driver side.


Yep, bank one is driver's side. Cylinder 1 is on front driver's side, Cylinder 2 is on front passenger side.

Bob
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- 3.7L, 42RLE, 4.10's, 4X Guard Trans skid, Factory Engine, T-case, Tank skids, Modded BoulderBars sliders, OME 927/948, Bilsteins, JBA A-Arms & 1/4" top plate, 1 extra rear iso/side, Moabs with Firestone Destination AT's 255/70-16
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Unread 10-04-2014, 12:50 AM   #4
pkwadhwa72
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Join Date: Oct 2014
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can any one help me I have code po152 on jeep liberty 2004 3.7 ltr I saw on googel that code refers on 02 sensor bank 2 sensor 1 I to fix it I am little confuce
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Unread 10-04-2014, 08:54 AM   #5
02blue
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2002 KJ Liberty 
 
Join Date: Aug 2011
Location: Frederick, MD
Posts: 458
I'm usually not a big fan of just throwing parts on, but I had the same code on my 2011 Dodge Avenger and wound up just replacing the sensor. Only 60k on it but since the change a couple months back, no more code. My code was actually the other side or bank (P0132) but same high voltage on sensor 1. Your upstream sensor is the pre-catalytic converter one (closer to the engine near the exhaust manifold) on the passenger side as mentioned above. Tough to get to but they do go bad. If possible get an NTK. Bosch do not work well. I think they are a bit slow to respond.

Good description of code:

http://www.obd-codes.com/p0152
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