No luck with Seafoam through the gas tank. Either tire of drivetrain related now. I am going to try and get confirmation on either one here this week.

 

my dads truck 01 screw/w 5.4 did the same thing it turns out it was a misfire due 2 2 coils that went bad

 

When accelerating, your weight distribution is a bit different among the front and rear wheels. This may "unload" the front just enough to allow a slightly out-of-round tire to exhibit its imbalance. Once that tire is more fully loaded, it is pressed more firmly against the road and the slight imperfection is not as pronounced. Just a possible reason......

I had the same problem with some new GoodYear tires and replacing them (Discount Tire was great!) solved the problem. Be sure that you have a reputable shop do a four-wheel alignment before you attempt to blame the tires, though.

Good luck,

Lee

 

I cannot due the 4-wheel alignment as I have a solid rear axle.

I am going to try tonight to post up some information pertaining to whether I may have a misfire or not. I have a $300 OBDII scanner that does datalogging. Maybe someone can help me with that.

 

i have a 2007 4x4 5.4 crew cab with 26.000 miles on it and already gone threw 2 sets of tires and this truck has never been off the road and ford says there nothing worng with it . at 12000 miles they had to put 4 new tires on it they said the tires was bad but this last set i rotaded at 24000 and in just a little over 200 miles the front tires have cord showing in them again. i know if 3 people from around here that has this trouble but they all 3/4 or bigger. has anyone else had this trouble. and if so what did they do to fix it.

 

Well I took one of the COPS off, and looked at it. The actual COP had some corrosion on it. The spring and boot looked great.

So needless to say, I think I am stuck with a COP replacement in the future. SH*T !!!!!