just got a 2004 F150 with the 5.4, 3valve. I'm suspecting the noise at hot idle to be the cam phasers. Ford has a TSB and it's very vague as to their definition of if/when the phasers should be changed due to the noise. The TSB says the noise does not degrade performance or longevity. I did buy a Ford ESP for engine/trans. and assume that the cam phasers would be covered however if it really doesn't affect the engine I can live with it.
Anybody have any info on this issue, is it just a bothersome noise or does it imply eventual failure of the part or degradation of performance?
thanks.
Anybody have any info on this issue, is it just a bothersome noise or does it imply eventual failure of the part or degradation of performance?
thanks.