The Best 2005 Fx4 Check Engine Light References. Web i just bought a 05 f150 fx4 has 82,000 miles on it, a day after i got it the light came on ,then started to idle rough while stationary and the auto shop replace the. Web i now have 114k miles on my 05 fx4 5.4.

Web i installed a cat back dual exhaust about two months ago on my 2004 f150 fx4 5.4l and everything ran great. Web the methods in this video can be used when diagnosing evap systems. Web no more light for the 2k miles.

