Mine shudders at 45 mph. Doesnt matter what you are doing. Even going to neutral it does it which is why i thought out of balance tires. After reading and seeing vids on you tube, its not a tire issue. Is ford really unable to balance a tire? I would think they can. Do new tires flat spot after sitting 2 months? No. Its a design flaw....

 

Book says new tires can need time to settle, drive 300 miles. That gave me some hope even though i bought 5 new trucks in last 5 years and never heard that one. At 350 miles now, dont think its going away. I have aftermarket compaines saying its a spring suspension problem, trying to sell me 500 bucks in parts. Excuse me? I bought a 64k truck on friday and now i get to put aftermarket stuff on it?

I made this thread so ford gets another data point. When you hit a sample size of 45 (binomial distribution, 95% reliability, 90% confidence) time to address issue ford.

Apparently i need the cooling seats tsb as well.
This is my first ever f150. I owned an f350 a few months some years back, wont go into that. I have bought new tacoma, 2 tundras, f350, ram 3500, is this what an f150 ownership experiance is like? Cause honestly, im wondering if i screwed up.....

 

What year and what engine?

 

2012 diesel