TECHNICAL SERVICE BULLETINS

TSB: O5-08-16

1997-2005 VARIOUS VEHICLES: REAR AXLE NOISE REPAIR

SOME VEHICLES MAY EXHIBIT AN AXLE WHINE OR HUM DURING ACCELERATION,

DECELERATION AND/CR CRUISE. AN AXLE REPAIR KIT HAS BEEN DEVELOPED WHICH

INCORPORATES MOST PARTS REQUIRED FOR A COMPREHENSIVE AXLE REPAIR, THE KIT

SHOULU BE USDED INSTEAD OF INSTALLING A COMPLETE AXLE ASSEMBLY TO REPAIR AN AXLE WHINE/HUM <O</O

<O</OSee TSB for complete details

EFFECTIVE DATE; 03/22/20Q5

 

Anyone have the complete TSB for review? I have the whine, been in to the dealer 3 times, no improvment.

 

Yes i just had it done on mine 03 navigator. They changed the ring & pinion
now it is very quiet.

 

And to think, it has only taken from 1997 until now for them to come up with this TSB.

 

I just got a postcard from my dealer today saying the part for my axle was in. It is simply called a "gear" on the card. I have had to the dealer 3 times already. when I took it in last month the service dept. said they have a fix for the problem but it would not be ready till mid may. Try calling your svc. dept. to see if they can back me up on this. I will post when the repair is done.

 

You're lucky. Mine was delayed from April to May and now the projected availability is June 23. I understand some of the parts for the "fix" were defective.

 

It's almost like Ford has never made an axle before! Wednesday is the big day for me.

 

Wow, this whine has just become noticible for me. I have almost 9K on my truck, and when I coast down all the hills I drive on the way home from work, I get a very pronounced whine.

I was wondering if I was just noticing it for the first time, or if it was always there....

 

Just wondering. Are the members who are having problems with rear diff noises also have limited slip? I have a 2002 F150 w/o limited slip and it's quiet. My wife has a 2002 Exploder w/o limited slip and it's also quiet. Or is this only for 2004 and above Ford's?

Whimsey

 

I think the problem is mostly with the LS units (mine is).

 

I believe this may have been brought up before but it does seem as though the problem with the rear end whine is almost solely on the limited slip.

Additionally, mine has 3.55 rear end. Manufactured at the Kansas City plant.

 

Both of my 1998 & 2001 have the whine and do NOT have limited slip.

 

My 2004 SC (3500mi.) has the 8.8" 3.55 rear end without limited slip. It HOOOWWWLLS at 75 mph but is less pronounced in pitch at all other speeds between 65 to 80 mph. I am awaiting my second ring and pinion set which will be the third for the truck if you consider what came in it. The first repair lasted 3 days or 100+ miles before the HOOOWWWLL began again. First it was the shakes for this truck and after we got that under control with tires and a damper kit it starts this differential whining crap! I am seriously considering getting rid of this thing if it does not get fixed because the whine is enough to make you insane.
I wonder if someone driving beside me would be able to here the high pitched whine as loud as it is in the interior. I also wonder if I could use some sort of sound barrier to quiet it down some. What the H is the problem with Ford? Did they forget how to assemble a differential or something? My wife 's 2002 Explorer with a 3.73 diff. had to have the whole thing replace because the piece of crap aluminum housing warped and started leaking on top of whining at 40 - 60 mph. Guess what! After 3000 miles the new unit is whining.

While I am on my stump.....
Ford service is the worst I have ever experienced. They restrict their dealers from helping the customer. I have never experienced this before and I have owned 1 Cadillac, 1 Camaro, 1 Mazda, 1 Nissan, & 4 Subarus. Just for the record the Subarus were all trouble free and have service departments that are without a doubt 300% better that any Ford dealer in my area.

Sorry for the rant but I am P!$$ed off about all the trouble and time loss that Ford has caused in my two car garage. Whew I feel better now and granted a Subaru can't pull a camper.

 

I'm running a 2005 F-150 4x2 Supercab, 4.6 V8, 3:55 rear axle. This is my 6th new F-150 since 1994. At the 5,000 mile oil change the passenger side rear axle seal was noticed to be leaking. I took it to the local Ford dealer and after 3 days and no repair work started I asked for my keys. I then took it to another Ford dealer. I explained to both service techs that I questioned why the seal had failed and asked for a full inspection of the bearing, race, axle, wheel, etc. I got it back today and was told it was just the seal. I can see the new gasket around the differential access plate and the right rear brake backing plate has been cleaned of oil. I then drove 60 miles and after parking in my garage I crawled under the rear and felt of both the right side and left side axle housing next to the backing plate. The left side was room temperature and the repaired side was warm, not hot. But it was much warmer than the left side. Now I suspect a defective axle or bearing caused the seal to fail. I do have a slight roar but I thought it was the tires because I drove a friends 2004 F-150 and he had the same roar. Is it fixed --time will tell.