Difference between 2005 and 2002 engine/trans (2.7L)
Asked by GuruDW2B75 May 24, 2024 at 05:55 PM about the 2005 Chrysler Sebring Convertible FWD
Question type: Maintenance & Repair
Replaced a 2005 engine and trans. (2.7L) with a 2002 engine/Trans 2.7L both
Chrysler Sebring covetable. The engine cranks but doesn't start. I have fuel
pressure but no spark at the spark plugs.
6 Answers
beatupchevy answered 3 weeks ago
You replaced an old worn motor with an old worn motor , the computers don't recognize the transponder or something and it won't start You should have come here first
Even if it's exactly the same engine, and I'm not sure it is, there will be differences between engines that are three years apart. Those differences are primarily in the sensors and how the computer interfaces with them. If the engines are identical, and if so, they'll have the same numbers, you might get away with replacing the older sensors with the newer, so the ECM can talk to it.
You just created your own can of worms. Computer and wiring incompatibility. Now you need a pro to at least see if it will at least scan, if it does there might be some hope of making it compatible enough to run but don’t get to hopeful.
2002 and 2005 are not interchangeable. There is probably a difference in the tone wheels for the cam and crank sensors. 2005 is a one year only motor.
GuruDW2B75 answered 2 weeks ago
The 2002 2.7L engine and trans are new crate engine and trans. I just need to be sure that it may be worth swopping out the cam sprocket and the flywheel as one last thing to try before I scrap the project. Thanks for all the great feed back.
