Can 2008 engine be installed in 2009 liberty?

Question

my engine gave out and dealer replaced it. Is it possible for 2008 engine to be put in a 2009 Liberty?

I did my oil change now, and the oil filter for 2009 Jeep Liberty did not fit. The filter was Mopar 4781452BB which are used for 2008 Liberty (I think fits 2002-08 models). The reason I'm asking is I have a kick/knock when driving around 50mph in a slight incline or having slight acceleration at that speed. When I checked with my local mechanic, he said this might be due to ignition coil/cable problem (seems it hasn't been replaced along with the engine) or fuel related. He asked me to use a cleaner and it didnt rectify it.

I checked in Mopar site and the ignition coil for 2008 & 2009 are different. Before I go the dealer, I want to be sure. The dealer rep wont even get up unless I consent to a $140 diagnostic charge for anything/everything. For ex, when I first went to the dealer abt the kick/knock, his response was "there is no way an engine can make noise, it has to be your transmission. It will be a $140 to check and leave the vehicle we will check in 3 days". Thats I went to the mechanic

Answer 1

Where did the replacement engine come from?

Look up a VIN decoder for the Jeep online. That'll tell you which engine it came with. Then check the engine serial number (it's on the block). More google-fu will tell you if it's the same model of engine that the car came with. If not, you then need to use Google again to match the ECU to the Engine.

If you supplied the engine, tough. If the dealer supplied the engine, talk direct to Jeep. They may be able to apply some pressure on the dealer. I have to be honest - I'd pay the money, rather than rely on a mechanic who doesn't know what the issue is or how to diagnose it. All he gave you was hope, not an answer.

One thing to be aware of; the mechanics in a lot of dealerships are paid based on the billable work they've produced. If you get a free diagnostic, you're saving $140 - but the mechanic isn't getting paid at all, and some diagnostic work can take hours.