So I am looking at a 2005 5.4l tomorrow and before I went to look at it I wanted to read up on it and I have heard some pretty serious horror stories. So I simply want to know how bad are they REALLY? Is this an EVERY single truck problem or a 1 out of 100? also what should I listen for? Just a basic tick? or diesel knock? Also is there anything else I should look for when test driving this vehicle?

I appreciate your time guys!

 

Only had one and no tick. 2004 5.4 SCREW 4x4. 165K. Only PM and an alternator.

 

Only have personal experience with one '04 5.4L 3v. Only regular PM (+ O2 sensors, VCT Solenoids). Over 200k mi and it has ticked and sounded like a diesel at idle every damn one of those miles. Countless people have asked me "What's wrong with your truck!!" But everything is still original and it's still running original alternator, A/C, water pump, PS pump, starter, idler pulleys and even serpentine belt - and it idles with good oil pressure on an aftermarket gauge.


If you read all over this, and other forums, you'll find 99% of the complaints center around the "sounds" the 5.4L makes - even AFTER many users replace all the timing components, they still make the same noises. You see very few that crater because of it. That's my 2 cents worth. I'd say base your decision on all the other usual things about buying a used unit.

 

Mine has been excellent. Only unexpected things were a starter and a blend door repair. If it has been well maintained I would trust it, if not I wouldn't.

 

2007 5.4L 3V. 131,000 miles. No noticeable tick or anything. Have never had an ounce of issues. I just keep it maintained well with frequent oil changes and filters using all Motorcraft products. Runs like new. It mainly just depends on how well it was taken care of.