Page 1 of 1

growling sound in 6.4l around 2000 rpm ???

Posted: Thu May 14, 2009 8:21 am
by paulkeel
Can anyone help w/ poss cause of a growling sound around 2000rpm & 20 lbs on press? It sounds like the plastic air box is fluttering. I've ran w/ cover & filter out to test & does the same thing. If you let off or get on it, then it goes away. If you take off harder than normal, it won't do it. The dealer is the last place I want to take it so any help will greatly be appreciated. No mods except predator.
I feel it has something to do w/ the air, turbo, or intake.

RE: growling sound in 6.4l around 2000 rpm ???

Posted: Wed May 20, 2009 7:56 am
by paulkeel
Found the problem. The alum tube coming from the intercooler was rubbing the front grill frame when boots were expanding. It doesn't touch when not under pressure. It appears I was hearing a vibration.

RE: growling sound in 6.4l around 2000 rpm ???

Posted: Wed May 20, 2009 9:22 am
by mikel
Good find.

RE: growling sound in 6.4l around 2000 rpm ???

Posted: Wed May 20, 2009 3:08 pm
by pic350ford
paulkeel mine did the same got some stick on rubber pads , problem solved