2003 ford escape no power and rough idle 3.0 V6.
i have been having the same problem with my escape for over a month now. i took of the intake manifold to replace my spark plugs, and while i was doing that i noticed that most of my vacuum lines were becoming really dry rotted. so i replaced all the vacuum lines and fittings put the intake manifold back on. on the first start up it was running a little rough, found out i put the vacuum lines on incorrectly. fixed that problem and it ran great! the next day i changed my oil and flushed my coolant. and now its back to running like garbage >:( same problem as before rough idle, now power to push it down the road, and has a hard time revving above 2500 RPM. i have taken the intake manifold off three times now trying to see if there i messed up any vacuum lines, they all seem good. i have checked my EGR valve and solenoid they both seem to be operating as advertised. i have checked my CATS with a laser heat gun and they are operating as should be. i have no idea what to do next for trouble shooting this problem. i was thinking, could a AIC be causing this problem....? any ideas.....? thanks, and sorry for the long story lol :?