2WD grinding noise

Tiny
TYLER JAMES CREASMAN
  • MEMBER
  • 2004 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • 198,278 MILES
My SUV is making a grinding noise in 2wd. Will not drive I put it in 4wd no problem makes no noise at all.
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Tuesday, December 10th, 2019 AT 5:30 PM

9 Replies

Tiny
KASEKENNY1
  • EXPERT
Is there a way to get a recording of the noise? More than likely there is a failure in the transfer case if I am understanding this correctly. If the vehicle does not move in 2WD and grinds but does move in 4WD and makes no grinding noise, this seems as though the gearing in the transfer case is the issue.

I am not one to like forums but I have heard of this in the past and did a quick search and there are a number of forums out there and they are confirming what I am saying that they had the T-case rebuilt or replaced and it corrected the noise.

Please let me know if I am missing something but again, this is the only thing that makes sense to me.
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Wednesday, December 11th, 2019 AT 4:33 PM
Tiny
TYLER JAMES CREASMAN
  • MEMBER
I think.
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Wednesday, December 11th, 2019 AT 5:04 PM
Tiny
TYLER JAMES CREASMAN
  • MEMBER
Rear differential I was told.
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Wednesday, December 11th, 2019 AT 5:06 PM
Tiny
KASEKENNY1
  • EXPERT
Wow. That is not a good noise.

Just so I am clear, this does not make the noise in 4WD? If this is the case, then it would not be the rear diff. The rear diff spins all the time in both 2 and 4 WD so I would expect it to make it all the time.

The way to verify this is to remove the rear drive shaft. However, this is a bearing that has failed and more than likely the output of the T case has stripped.

I would suggest just lifting the rear wheels and getting under the truck and see where you hear this coming from. I imagine you can put your hand on the transfer case and transmission and feel this noise.

I am suspecting the transfer case is the issue.
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Wednesday, December 11th, 2019 AT 6:21 PM
Tiny
TYLER JAMES CREASMAN
  • MEMBER
Just in 2wd I can drive in 4wd.
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Thursday, December 12th, 2019 AT 3:51 AM
Tiny
KASEKENNY1
  • EXPERT
Okay. It could be the rear end but that should be relatively easy to determine if you lift the rear end and run the vehicle in 2WD. Let us know what you find. Thanks
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Thursday, December 12th, 2019 AT 5:56 PM
Tiny
TYLER JAMES CREASMAN
  • MEMBER
Rear end doesn't lock in park.
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Thursday, December 12th, 2019 AT 6:22 PM
Tiny
TYLER JAMES CREASMAN
  • MEMBER
  • 2004 FORD EXPEDITION
  • 5.4L
  • V8
  • 198,267 MILES
The sound of 2wd.
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Friday, December 13th, 2019 AT 4:09 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
Good morning,

Does the truck move at all?

Does the speedometer work during this noise?

This could be either a transfer case issue or a differential issue.

Roy
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Friday, December 13th, 2019 AT 4:09 PM (Merged)

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