Help, Shudder Help
I have been experiencing this shudder recently in my 2005 f150 xlt. I have already changed all eight of my sparks plugs and coils. I have also changed my fuel filter. I notice I get most of my shudders going uphill. So I tried something today. I found a hill that would cause my truck to shudder will o/d was on. I went up the same hill with my o/d off and received no shudder. I tried it a third time with o/d on and as soon as it started shuddering I kicked o/d off and shudder went away. So I noticed with higher rpm there is no shudder. What in the world is causing my truck to do this? I don’t get this shudder with higher rpms.
Anyone with any facts and opinions please let me know what you think can cause this. I need to know what to expect. Has anyone had this same problem? If so what was the cause and how did you fix it?
Anyone with any facts and opinions please let me know what you think can cause this. I need to know what to expect. Has anyone had this same problem? If so what was the cause and how did you fix it?

