whirrling noise under car

1998 FORD EXPLORER
165,000 MILES
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JOEY JO
  • MEMBER
  • 7 POSTS
I have asked this question before and you gave me some tips on how to fix the problem, so i had a mechanic check my rear differential and he said it needed a ring and pinion gear. I had tha done, but the noise is still there. Can the transfer gear case make that noise or is it the front Diff, please advise thanks. Oh by the way its a 98 explorer 4.0 v-6 sohc 4 wheel drive
Apr 16, 2013 at 1:02 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
can you describe the noise?
Apr 16, 2013 at 1:18 PM
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JOEY JO
  • MEMBER
  • 7 POSTS
Its a high pitched type of sound, kinda like a old fan wearing out,A whirrling type of noise that only happens when the truck is in gear and accelerating and stops when i let up o the gas, kinda sounds like a old fan thats wearing out. Hope that helps, thanks in advance for your help
Apr 17, 2013 at 4:17 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Based on your description, I believe it is the fan clutch that is locking up to cool the engine down.
Aug 8, 2013 at 12:23 PM
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