I have a 2006 F150 5.4 liter and at 100,125 miles my Check engine light came on after a heavy acceleration.
My boss let me use his diagnostic scanner and read the p0308 (cylinder 8 misfire) code.
Today I swapped the coil AND plug from cylinder 8 with cylinder 1 and disconnected the negative battery terminal to clear the CEL. When I started the truck they engine was shaking and running really rough. At this point I assumed it was the the coil from 8 so I went ahead and spend the 47 bucks for a new coil. I put the cylinder 1 plug and coil back in its place and put the new coil on cylinder 8 but the truck it shaking just as bad.
I thought maybe the computer needs to adjust so I drove it around. The truck barely ran and the CEL came back on so I pulled into Auto Zone and the new code it P0174 (lean bank 2) The guy at the store said a vacuum leak and that's what I am also reading on the internet.
Did I knock something loose or break a hose?
Could it be a way over due fuel filter?
Could it be the fuel injector from cylinder 8 that through the original misfire code?
I had to call out of work using 2012 vacation time and I really cant afford to go tot he dealer which is why I was trying to fix the problem my self.
Can anyone make suggestions?
My boss let me use his diagnostic scanner and read the p0308 (cylinder 8 misfire) code.
Today I swapped the coil AND plug from cylinder 8 with cylinder 1 and disconnected the negative battery terminal to clear the CEL. When I started the truck they engine was shaking and running really rough. At this point I assumed it was the the coil from 8 so I went ahead and spend the 47 bucks for a new coil. I put the cylinder 1 plug and coil back in its place and put the new coil on cylinder 8 but the truck it shaking just as bad.
I thought maybe the computer needs to adjust so I drove it around. The truck barely ran and the CEL came back on so I pulled into Auto Zone and the new code it P0174 (lean bank 2) The guy at the store said a vacuum leak and that's what I am also reading on the internet.
Did I knock something loose or break a hose?
Could it be a way over due fuel filter?
Could it be the fuel injector from cylinder 8 that through the original misfire code?
I had to call out of work using 2012 vacation time and I really cant afford to go tot he dealer which is why I was trying to fix the problem my self.
Can anyone make suggestions?