Rattle and one other noise????
I have a 2001 F-150 XLT 5.4L. I have had it in the shop quite a few times for the various noises I hear coming from the engine compartment, or so I believe that is where it's coming from. Anyway, the dealer keeps giving me the run around. First and second time in they could not duplicate, I finally took them out with me and was able to duplicate with technician present. They took in the shop and checked EGR system, for exhaust leak but they were unable to pinpoint the problem but assured me was not an issue, my thought was "not an issue, it's a 32k dollar truck- it most certainly is an issue". I then changed dealers due to lack of knowledge at first dealer. The new dealer first said YES Ford is aware of this and has their engineers working on it- result " this noise is normal for the 5.4L engine". This dealer repaired a few other minor issues I had so I thought I'll give them one more shot too. Took their technician with me on road test we heard two distinct noises- one that sounded more like a rattle and it was easily heard, this we believe, after further investigation is a resonating catylitic converter (this is the noise that comes and goes at will), the second noise is very faint and this is the one I believe to be coming from the engine and only is noticeable at light to medium throttle not heavy due to overwhelming engine. i love this truck but the more I read hear the more scared I get.