Ok need help here. After drivin 4 a while my car starts missin n ha no power whatsoever when I hit the throttle but I can limp it down the road if I ease on the throttle...but it idles just fine. Also has new plugs n fuel filter

 

4.6 5.0???

 

4.6ltr

 

Sounds like the throttle position sensor

 

Sounds like cats to me. Many times vehicles come to our shop with the same issue and its usually cats. Obviously it could be many things but this is common

 

Don't know if this matters but when it's acting up it revs up just fine when I push the clutch in but goes back 2 missin when under a load