Engine swap
 

I have a 2002 edge with a 4.0 V6 with a bad ticking nose and no power. So my Question is I have a 2003 escape with a 3.0 V6 will that work for me? What changes would I have to do? Thank You

No, wouldn't be practical.

3.0l and 4.0l are unrelated engines.
This means you would have to swap the motor, transmission, computer and all engine wiring with it, from the Escape to the Ranger, also ignition and door keys/locks because of PATS(passive anti-theft system).
Also any 4x4 parts if so equipped.

Selling the 2003 Escape and using that money to fix the 4.0l SOHC engine or to get a lower mile used 4.0l SOHC would be better option.

Rangers use two different 4.0l engines, 1990-2000 had 4.0l OHV-160hp
2001 to 2012 had 4.0l SOHC-207hp, so you have the 4.0l SOHC in an '02

4.0l SOHC was offered first in 1997 Explorer, the '97-'04 4.0l SOHC engines had timing chain issues, the new redesigned parts can be installed to fix the problem, engine must be removed to do this.
Your description reads like that could be the problem.
If you buy a used 4.0l SOHC make sure it is '05 or newer, or has had the timing chain upgrade.

Thank you Ron
What parts were the upgrade to the timing chain issue?

Timing chains, chain guides(cassettes) and tensioners.

Originally Ford just replaced the front timing chain parts under warranty, which seems to be fine.

So really up to you if you want to pull the engine and do the back chain.


Good long read here on this issue, thread started in 2006: TSB 02-7-6 4.0L SOHC Timing Chain Rattle - Ford Explorer and Ranger Forums "Serious Explorations"®