4.0 sohc noise (might be normal)
I have an 08 4.0 sohc with 46k miles, and Ive had this noise as long as I can remember and it may be totally normal, it seems to be a very slight rattle coming from the driver side in the wheel well area when it is idling, when you increase rpms the noise seems to fade. Its not loud and the engine seems to sound/run smooth. I usually only really notice it when im in a drive thru next to a wall, or if I stick my head down by the drivers side wheel well. I used to own a 2004 ranger with the 3.0 and it made the same type of noise as well, and noticed it in drive thrus also. The truck has motorcraft 5w30 synthetic blend oil and has been changed every 3k. If anyone has any thoughts please share.
2008 Ranger FX4 - Vista Blue, Extended cab 4-door, 4.0L, auto.
2004 Ranger Edge, Sonic Blue, Regular cab, 3.0L, 5 speed. Many mods.