I have a 2006 F-250 5.4 and i was messing around trying to see if i could isolate the tapping noise. I unplugged the 2 plugs on top of the valve covers that go to the variable cam timing phaser. now how do i get the CEL off?

 

Disconnecting the battery's negative terminal for 10 minutes will reset the computer's memory.

If the fault that triggered the MIL is corrected, the MIL should not return.

 

Thanks, Now if you could help me with the lifter Knock.

 

PLease HELP,

My CEL went on recently. In addition to this, there is some "knocking" that i can hear and slightly feel underneath the floorboard. It is as if something is loose down there. I've gotten down there and checked it out but I can't seem to find what it is thats causing the knocking. Usually occurs when going over bumps or I can replicate the sound by turning the wheel from side to quickly while in motion. Anyone?

Also, when I turn the wheel (parked or moving) there is a squeaking sound that occurs. I've checked the power steering fluid and the level/fluid is good. It is an 04 F250 SD crew cab that i bought in NOV of 06 with 19,700 miles. It currently has 32,000 miles. I do some plowing with the truck but this winter has been the only one worth mentioning (as im in the N.East). Could this be a ball joint or u-joint issue or just a matter of greasing the right parts?

Any help you guys can offer would be greatly appreciated.

Thank You.