Does anyone know if the engine from a 2005 Jeep Liberty 3.7L work in a Jeep Liberty 2002 3.7l. The reason I'm asking is be cause my 2005 was in an accident and the engine is salavgeable and I found a 2002 with a blowen engine for a good price.

You will have to swap the '02 engine crank and cam reluctor rings(and use the '02's cam and crank sensors) into your '05's engine and use the '02's intake manifold and exhaust manifolds.Yes this means you have to tear down both engines.You also will need to swap the flexplates as the 45RFE requires and different flexplate then the 42RLE.

TwoBobsKJ did a whole write up on installing a newer model engine into a 03
everything is explained in it

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

so it can be done, but would it cost a lot to do it?

If your doing all the work and the stuff is good in the blown '02 engine it's just going to cost you a gasket kit and a lot of your time.

i TRIED FINDING HIS WRITE-UP BUT I COU;DNT FIND IT, ANY CHANCE OF A LINK.

Thanks alot, this will give me an idea if I better off buying the 2002 and rebuilding or trying to find a replacement 2002 or dropping the 05 in