So i was backing my truck up yesterday with a boat attached.. and my truck started bucking BAD... unloaded the boat... started the truck again.. and drove it about 4 miles nothing happens, GOOD. Today i drove the truck around town for a hr or so doing errands.. nothing happens... loaded the boat up again and drove out to put it in the river.. started bucking again.. opened my door this time.. sounds HORRID!!!! Immediately drove home and it did fine, until i tried backing in the boat... did it AGAIN!!! Getting to the point.. as much as i didn't want to keep it running i took a video...


Pulled code yesterday p0345... pulled code today p0012... ugh.. looked it up and doesn't look promising...

Truck ran great until now.. To note... i did change the oil over to AMSOIL for the first time a week ago... with an amsoil oil filter... Could the oil be the cause?

 

bump... anyone?

 

In your video it sounds like she ain't hitting on all 8cyl. I'm sure the oil had nothing to do with it

 

I just mentioned it before someone would ask.. it's the last thing i did to it..

 

ttt

ANyone? Where should i go from here? suggestions?

 

why dont u look up the codes on the internet then ull prob be able to pin point the prob. its prob a coil pack or alternator. or a fuel injector/ spark plugs... how many miles on your truck????

 

60000, i've been searching all around on the internet for these codes.. no clear answer can be found... fingers pointing in all different directions...

 

Codes can be found at this link. The search button will find most of the answers you are looking for. Looks the camshaft and timing related. Cant help you there. Good Luck

https://www.f150forum.com/f12/how-di...es-obd-ii-431/