Question about 2002 Jeep Liberty

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How to fix cylinder number 4 misfire on 2002 jeep liberty

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Brian032472
  • 150 Answers

SOURCE: 2003 Jeep Liberty heater fan problem

It is the blower motor resistor. Look under the passanger side dash and locate the fan housing (looks round and black in color. Then locate the resistor it will be in that housing usually withtwo ten millimeter nuts or two simple screws holding it in. unplug the harness to the resistor and remove the resistor. Part store price is approx. 50.00. Note: on aftermarket (not Jeep) resistor sometimes you have to modify the housing a little to get it in. Hope this helps.

Posted on Feb 01, 2009

  • 30 Answers

SOURCE: 98 jeep wrangler 2.5L #4 misfire

check fuel for pressur and quantati to fuel rail posable fuel pump or regulator

Posted on Jun 09, 2009

  • 9 Answers

SOURCE: 2002 jeep liberty interior fuse diagram

1-20amp-pwr outlet frt. 2-10amp-rear fog lights(export only)
3-15 amp-horn 4-10amp-hedlt low beam rt
5-10amp-hedlt low beam lft 6-20amp-bodycontrolmodule/pwr dr locks 7-spare 8-spare 9-10amp- rt pk lt /rt tail lt/trailer tow lt/cluster
10-spare 11-15 amp-flasher 12-15 amp-stop lts
13-10amp-bodycontrolmodule/cmtc/cluster 14-spare
15-10amp-pdc fuel pmp & auto shutdownrelays/skis
16-20amp-pwr outlet rear 17-15amp-rear wiper 18-20amp-radio choke relay 19-20amp-frt fog lts/trailer tow stop and turn lts
20-20amp-sunroof 21-spare 22-10amp-wiperswitch/frt and rear washer 23-10amp-lft park lt/lft tail lt 24-10amp-pdc blower motor relay 25-10amp-heatseatswitch/hvac controlhead/trailor tow battery charge 26-10amp-hedlt highbeam rt 27-10amp-hedlt highbeam lft
28-spare 29-15amp-heated seat module 30-10amp-heated mirrors/rearwindowdefrosterindicator 31-20amp-cigarlighter
32-10amp-radio/frtdoorlockswitches/bodycontrolmodule
33-10amp-skis/diagnostic connector 34-15amp-cluster/courtesy lts/radio/bodycontrolmodule/maplights/cmtc/underhood lt/vanity lts
35-spare 36-10amp-ignition run/start-orc/lft and rt siacm
37-10amp-ignition run only-orc 38-10amp-abs module/brake shift interlock solenoid 39-10amp-rear window defroster relay/flasher/backup lts

Posted on Jul 10, 2009

  • 164 Answers

SOURCE: Liberty Jeep 2002 at what milage do I change the timing belt?

First does it have a belt ore a chain and most newer one recomend at like 60k ore 90. If got a chain it stretch and you will not get great gas milage but it will not break like a belt

Posted on Jul 26, 2009

  • 1 Answer

SOURCE: Install a 05 Jeep Liberty 3.7 in a 02 Liberty

BEFORE you put the engine in you must convert it with your old engine's crankshaft position ring and it's pick-up sensor. This ring can ONLY be changed with the engine upside down and out of the car. All rods must be disconnected, all mains are part of a cast saddle that must be removed, the front engine covers and all the timing chains must be removed, and finally the crankshaft must be lifted out and the ring must be hammer-unscrewed (impact screw driver, but I forget now if the taper-headed screws are allen, hex, star or phillips). DO NOT WASTE YOUR TIME REMOVING THE HEADS. The ring is ENTIRELY different than the one the computer system on the 02 Liberty can recognize (this is what triggers your spark timing). Next is the magnetic pick up 'wheel' located on the front of the passenger's side of the over-head camshaft. This magnetic cup wheel triggers the '02 fuel injection system (don't un-magnetize it). Lastly, the '02 plastic intake manifold (w/ O rings for seals) for the '02 has an additional port, this is an easy swap-out. Mostly there are no gaskets- the finish is so fine they just use a factory sealer (comes in a tube). Buy it, it's cheap enough and it matches the factory's specs. Taking the engine back out/in is NOT fun, but with the engine on a stand, and with no time constraints it's managable (but still not fun). I made that exact engine swap myself and went through a lot of anguish learning all of this. By-the-by, these engines will NOT tolerate dirty oil. DO NOT EVER try and stretch out your oil changes, because they run really hot (due to the windage tray that prevents oil mist from coating the engine's internals) an ash will form and goop up the insides. The fine oil pick-up screen (drilled plate) will always clog up. If it's been a long time since the last change and your engine is still running fine, when you get around to putting in new high detergent oil it sorta un-sludges the goop and REALLY coats the pick-up. DEATH BY SUFFICATION. If you're ever at this point (no damage yet) I would suggest doing the oil change (before there's any knocking or signs the engine is failing) and I would do 2 more oil & filter changes @500 miles each; hopfully you'll dislodge the ash/sludge and get it out of the engine. Once damage has started it progresses very quickly- this engine is not very tolerant. Your oil will be gold color, and yet your enging will sieze because it can't 'get to it'. BEST OF LUCK- this is very do-able, but you might first investigate if you can swap out the engine management computor and wire harness and maybe avoid all of this above mentioned wrenching. No back ground info here, plus I didn't have access to the vehicle the 05 engine was snatched out of- sorry, and good luck again. One last bit of advice- I bought a zero miles engine from a National Highway Admin. crash/test vehicle. When I broke the engine down ALL the timing marks on all three chains were not aligned and had to ALL be set- I guess they might do that to prevent the parts from re-entering the 'system'? Or, some dumb s__t at the factory was new and/or pi__ed-off and this engine was just plopped in the donated/untitled crash vehicle rather than ripping it back apart and re-assembling it. The damn Jeep fired on the second crank and is running fine now (2 years later). Ciao4Now, Brian Fahey

Posted on Feb 22, 2010

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Nov 28, 2015 | Cars & Trucks

1 Answer

I have a few codes that need to know what they mean


Hello there.
Sounds like number 4 cylinder problems ;spark plug, leads. coil;

From here the general meaning of P02311 is problem with 'ignition coil 4'
http://engine-codes.com/p2311.html

From this page
http://engine-codes.com/make/jeep

Sep 16, 2014 | 2005 Jeep Liberty

1 Answer

Continuous flash of the check engine light on a 2002 Jeep Liberty Limited what could be wrong ?


spark plugs can cause misfires for sure. If you swap the number two cylinder plug with another cylinder then retest the code and the code stays on the same cylinder then its not the plug. could be coil, injector, engine mechanical. be careful not to drive to long because you could damage the catalytic convertor. thats why the check engine lamp flashes because its a catalyst damaging misfire.

Jul 15, 2012 | Jeep Cars & Trucks

1 Answer

2002 jeep liberty 3.7 liter 6 cylinder 4x4 spark plug gapage. What should it be?


Make: JEEP
Model: LIBERTY - SPORT
Year: 2002
Engine: V6 - 3.7L - FI - - GAS

Part Number RC9MC4 .044" (Original Equipment Manufacturer and/or Original Equipment Equivalent)

Hope helps (remember to rated and comment this).

Sep 12, 2010 | 2002 Jeep Liberty

2 Answers

2002 Jeep Liberty Sport 3.7L V6 Replaced all six spark plugs with brand new ones and replaced coils for 4 and 6 with new ones Still reading misfire Within 10 minutes of starting enging, vehicle idles...


We have an 02 Liberty 3.7L, here at my repair shop, after customer replaced, spark plug's and all coil pack's, brought it here to my shop, was running with two cylinder's miss, did cylinder compression test, no compression on two cylinder's, remove valve cover's, found two rocker arm's off, remove cylinder head's, and found that on those two cylinder's the valve seat's had drop, keeping the valve open, and that's why the two rocker arm's had come off, do a cylinder compression test, could be the same thing, hope this was very helpful.

Aug 30, 2010 | Jeep Liberty Cars & Trucks

1 Answer

Check engine light flashing Computer is number 1 cylinder misfiring New spark plugs New number 1 cylinder plug discolored No apparent oil or antifreeze leaks


the fuel injector is not pulsing correctly,it probably has something in the screen in side of it,you will need to check that screen in the injector or replace it

Nov 24, 2009 | 2002 Jeep Liberty

2 Answers

What does the error code P0304 mean?


A p0304 is a cylinder misfire on number 4 cylinder. Possible causes are faulty spark plug wire, bad spark plug, or faulty ignition coil. Depending on how many miles are on the vehicle, you may just need a simple tune up.

Oct 17, 2009 | 2005 Jeep Liberty

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