Loud Lifters.
#1
Loud Lifters.
I was looking at a 2004 F150 5.4 for sale today and noticed the lifters were very loud when looking under the hood. What causes this exactly? Also i believe the truck has some sort of vacuum leak or something as it idles rough when in gear. Thanks for your insight just trying to learn something here.
#2
#3
The fuel injectors make a ticking noise as they open and close that sound very much like lifters. If it is a more solid knocking sound, it could be the cam phasers and that is a problem. The bad idle could be several things. Needs plugs, or the throttle body or the MAF could need cleaning. Could even need a fuel filter, that will cause it too.
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Jim
Jim
#5
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#8
With those noises and issues, I'd take a pass on that truck. 2004 was the first year of the 5.4 3v and it definitely had some issues.