The engine on my 2002 Jeep liberty 2002 4x4 got broke, I bought a wrecked 2003 jeep liberty 2004 2wd. after setting, the used motor on my jeep I found out that the torque converter on mine is bigger than the one on the used one. then it doesn't fit on the used motor. what should I change in order for it to fit in it? 
Engine swaps are complex as is mixing engines to wrong transmissions.
so both are 3.7L, is that it?
you never said what exacty didnt fit.
the flex plate to TC
or TC to A/T pump side mismatch.
????????
if its the flex then get the correct flex plate.
or call jeep parts? ask them for the right parts
the side of the trans has the trans part number
my guess is all you need is the correct flex plate for engine to TC.
Testimonial: "Thank you Juriy Hawrylak !!! Yes both engines are 3.7 but diff yearsand flex plates are different too.but the problem is the tip on the TC. I will try to upload a couple of picts here just for better understanding and furter reference!"
for swaps (complex they can be)
including failing smog and not easy to fix. that.
post the a real jeep forum.
and ask for swap information
fixed stock cars is easy
swaps. NOT SO. ( can site 1000's of examples and horrors)
really sharp people there, http://www.jeepforum.com/forum/f28/
Thanks for the advice, I will try to post it on the Jeep forum too!!
jeep.com shows all parts that fit new.
for sure this must match up.
here are the 2002 parts. 45RFE box.
see those P/Nhttp://www.factorychryslerparts.com/show...
now the 2004
in 2004 there are now 2 automatics
the 42FRF and the 45rfe.
you cant mix parts between them .
the 42box was used on 2wd only'
http://www.factorychryslerparts.com/show...
im not sure what BLEW?, engine or trans or both in original car?
here is the 2004 42RFE
mixing up transmission parts, is not easy.
you might call a transmission shop and ask this.
if only swapping engines?
then you need to buy a flex plate.
only a 3.7L engine swap (2wd to 4wd)
42 box setup engine and flex.
to 45 box in car. (no changes this end)
so the flex plate is wrong. in the new engine.
that be it. (my best guess)
the flex plates must match engine
and TC and box.
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SOURCE: 2003 jeep liberty air bag light on is it easy to fix
The system needs to be checked for cades. Airbag codes are pulled out
of the ECU with the use of a scanner tool. A good auto mechanic shop
will have this or you can go to the dealer. YOU SHOULD NOT TRY TO
REPAIR THIS YOURSELF,YOU COULD ACTIVATE THE AIRBAG!!!!!
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.
SOURCE: 2004 jeep liberty thermostat change?
ihave to change my thermostat in my 04 jeep liberty is it hard
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
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