Hey guys/gals. Im new to this site and im sorry if someone has already posted something needing help with this problem. OK...I have a 2007 f150 Lariat 5.4 4x4 crew cab. I have 115000 miles. HEAR IS THE PROBLEM...Whenever i am going lets say 30 through 50 mph at LOW rpms like 1300, if i just give it a little gas my truck starts to skip...also, when im going in those same speeds up a hill it skips as well..but the weird thing is if i were to punch it from 0-60 or faster it shifts perfect like it was new. I do have 33 inch tires with 20's and a superchip on gas saver mode and a k&n cold air intake..I was just listing my mods to see if they were the problems...I hope someone can help thanks a lot!!!

 

I have a very similar problem with my stock 05. By chance did you figure out what the issue was? I've only had my truck a few months so I have no idea.

 

Do you think it may be a torque converter problem......??

 

I just had the problem with my stock 2005 FX4 at 126,000. At 1100 rpm/45 mph if I encountered an upgrade it would bump in and out of OD and seem to miss a bit. If I accellerated quickly it would overcome the problem but would not gradually accellerate past it. Had the spark plugs replaced last Friday and I'm happy to say the problem is gone. I have tried to make it happen and could not do it. Hope this helps....