Question about 2004 Jeep Liberty

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2004 jeep liberty P0139 code

Check engine light came with a code P0139

Posted by mary george on

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Arthur

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PO139:O2 Sensor ckt Slow Response(Bank 1,sensor 2).This would be the odd side cylinders(1,3,5) and the 2nd oxygen sensor form the cylinder head.The sensor may be contaminated,or the heating element(on a 3 or 4 wire sensor) may not be working well.a good auto parts store should be able to show you a picture of where it is(the store will probably give you a printout if you buy the part form them!)

Posted on Sep 25, 2012

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Anonymous

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SOURCE: Check engine light flashing on / off on 2002 jeep

check engine light flashing on/off on 02 jeep liberty what can cause this problem

Posted on Oct 14, 2010

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csmock132

Clint Smock

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SOURCE: 2003 3.7 Liberty check engine light for crank sensor

2003 3.7 Liberty check engine light for crank....what? sensor? You have scanned it?

Posted on Mar 06, 2009

Anonymous

  • 24 Answers

SOURCE: how do i reset my engine light on my 2004 jeep liberty

most cars: disconnect the positive cable from the battery and wait 10 minutes. Then reconnect.

Posted on Jul 17, 2008

tommypollock

Tommy Pollock

  • 28 Answers

SOURCE: 2002 jeep liberty

I found that the hoses for the Evap. system near the gas tank had split on the ends and was causing a leak.

Posted on Oct 08, 2008

Anonymous

  • 1 Answer

SOURCE: 2004 jeep liberty thermostat change?

ihave to change my thermostat in my 04 jeep liberty is it hard

Posted on May 22, 2009

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1 Answer

2004 jeep liberty 3,7 code p0135 changed o2 sensor check engine light comes on


Check the wires at the back of the harness plug for any breaks. Some times they break inside the coating, so pull on them. If they stretch, it broke.

Jul 03, 2014 | 2005 Jeep Liberty

1 Answer

2004 jeep liberty 3.7 automatic gear shifting 3-4


tranny filter or engine filter, wow.

use a scan tool and scan, it then post the DTCs
problem never stated,

Jan 22, 2014 | 2004 Jeep Liberty

1 Answer

I have a 2004 jeep liberty, engine light went on but there is no code.


you may need to make sure gaz cap is on good after refuelling..
hope this help..

Oct 09, 2009 | 2004 Jeep Liberty

2 Answers

My dad's Liberty will start with no problem but then the engine light flashes 5 times and then will stall once it hits second gear-please tell me what the 5 flashes mean


I would take the vehicle to your local autozone and have the codes checked and that can tell you with a lot more accuracy what the issue is.
Thanks,
Lee

Aug 12, 2009 | 2004 Jeep Liberty

1 Answer

2004 liberty


If your engine light came on, the engine module could have stored a code.
You need to have a scanner to check what code it is and that will point you toward the solution.
Possible causes could be (crank sensor, tps sensor or oxygen sensor).
Don't go replacing parts until you scan the vehicle for codes first.

Oct 03, 2008 | 2003 Jeep Liberty

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