JB7795
Member
- Joined
- December 10, 2019
- Messages
- 30
- Reaction score
- 1
- City, State
- Noblesville, IN
- Year, Model & Trim Level
- 2004 Explorer XLT 4.6L
Vehicle in question is an 04 Explorer XLT AWD with the 4.6L, I’ve browsed through the other threads and haven’t found anything I thought was identical to my issue they all seem to be regarding wheel bearings which all 4 of mine have been replaced with moog and Motorcraft, or they mention binding which mine isn’t doing either.
Done a lot of work to the trucks engine, new transmission, some suspension components etc so overall the truck rides fairly smooth other than this increasingly annoying noise coming from the rear end. I’ve taken a picture of my door jamb because I know there’s some sort of codes on that sticker that indicate what type of drivetrain setup it has, pretty sure it’s got the limited slip diff but I could be wrong?
I also took a short video of me driving the truck so you guys could hear it but I can’t attach a video *sigh*, I had both the rows of backseats out after helping a friend move so the noise became much more pronounced with the truck being pretty much hollow. I’m cruising at about 50 tapping my foot lightly on and off the gas pedal and every time I tap the pedal the noise comes then goes the moment my foot comes off the gas then if I leave my foot off the gas the noise will dissipate like I mentioned but then come back about 5 seconds later as the truck coasts down in speed. Most of you would probably think it sounds like a wheel bearing because it does but I’ve replaced all 4 wheel bearings already, I’ve actually replaced both rear wheel bearings 3 times because I thought maybe the autozone and oreilly brand bearings I pressed in were just junk so ended up putting Motorcraft entire hub and knuckle assemblies on the rears the final time and still having the exact same problem. Its a mix of two noises, a loud humming and a much more faint scraping sound but does not change pitch when cornering left or right like a wheel bearing normally would, but it does change if I’m driving straight and there’s a small dip in the road. The sound will be there then as it goes down in the dip and back up, the sound will almost disappear as I feel the weight of the truck come up out of the dip then reappear once it levels back out. I’m beginning to think somethings going on within the rear diff, also I’ve drained and refilled the transfer case, front and rear diffs (included friction modifier in rear), and replaced the driveshaft u-joints none of which corrected this problem. Wish I could just attach the video would make it much simpler than my long winded explanation lol
Done a lot of work to the trucks engine, new transmission, some suspension components etc so overall the truck rides fairly smooth other than this increasingly annoying noise coming from the rear end. I’ve taken a picture of my door jamb because I know there’s some sort of codes on that sticker that indicate what type of drivetrain setup it has, pretty sure it’s got the limited slip diff but I could be wrong?
I also took a short video of me driving the truck so you guys could hear it but I can’t attach a video *sigh*, I had both the rows of backseats out after helping a friend move so the noise became much more pronounced with the truck being pretty much hollow. I’m cruising at about 50 tapping my foot lightly on and off the gas pedal and every time I tap the pedal the noise comes then goes the moment my foot comes off the gas then if I leave my foot off the gas the noise will dissipate like I mentioned but then come back about 5 seconds later as the truck coasts down in speed. Most of you would probably think it sounds like a wheel bearing because it does but I’ve replaced all 4 wheel bearings already, I’ve actually replaced both rear wheel bearings 3 times because I thought maybe the autozone and oreilly brand bearings I pressed in were just junk so ended up putting Motorcraft entire hub and knuckle assemblies on the rears the final time and still having the exact same problem. Its a mix of two noises, a loud humming and a much more faint scraping sound but does not change pitch when cornering left or right like a wheel bearing normally would, but it does change if I’m driving straight and there’s a small dip in the road. The sound will be there then as it goes down in the dip and back up, the sound will almost disappear as I feel the weight of the truck come up out of the dip then reappear once it levels back out. I’m beginning to think somethings going on within the rear diff, also I’ve drained and refilled the transfer case, front and rear diffs (included friction modifier in rear), and replaced the driveshaft u-joints none of which corrected this problem. Wish I could just attach the video would make it much simpler than my long winded explanation lol
