Slight vibration at acceleratoin

Welcome aboard! As the owner of a white 2004 Ford F-150 Lariat SC with better than 100k on the clock I can attest to the fact that there are going to be some odd noises and vibrations here and there. If it is a slight vibration under the dash that only last for a second or so, call it character and press on with pride!

Mac

Thanks. I took it to Ford to service it right after buying it and the tech said that their was an after market oil filter that was not recommended for 5.4 3 valve engines. I know the guy I bought it from serviced it regularly at a family owned car wash type place every 3,000 miles for the life of the truck probably always putting on those after market oil filters that are "not recommended". I have read some nightmare stories about after market filters ruining engines. My engine seems fine except for that slight vibration noted that is more just a little annoying than anything. Do I have anything to worry about due to the after market oil filters if everything seems fine right now? I

I wouldn't worry too much about it if the tech didn't say anything was wrong.