5.4 rough idle problem
#1
5.4 rough idle problem
Hey all,
I have an 04 5.4 in my f150. Yesterday I stopped at a red light and the truck shook pretty badly while at a complete stop. A few minutes later my check engine light came on. I ran a diagnostic which came up as PO345, cam shaft position sensor malfunction. I replaced the sensor and the light turned off, but it really doesn't explain the rattling. I am thinking probably the cam phasers but i am no expert. Any thoughts would be appreciated.
I have an 04 5.4 in my f150. Yesterday I stopped at a red light and the truck shook pretty badly while at a complete stop. A few minutes later my check engine light came on. I ran a diagnostic which came up as PO345, cam shaft position sensor malfunction. I replaced the sensor and the light turned off, but it really doesn't explain the rattling. I am thinking probably the cam phasers but i am no expert. Any thoughts would be appreciated.
#2
#3
#5
The truck has 86.6k mi. Still havent fixed it yet check engine light is off and maybe i am just being paranoid but it doesnt sound right. kind of like a diesel but only while idling. It idles just above 500 rpm. is that a normal range i have no clue.