Good to have another "old fart" here :)
2.3l Duratec(Mazda L) engine has been pretty reliable in Rangers.
One sore point is that this engine was designed for front wheel drive cars, transverse mounting, so there is a cooling system hose/fitting on the back side of the engine.
When put in a Ranger this fitting is only accessible if you remove the transmission(or pull out the engine), so if you ever do need to pull out the trans(hopefully not) then it is a good idea to replace this fitting and hose just as preventive maintenance.
Last edited by RonD; 10-19-2015 at 10:21 AM.