99' Grand Caravan bearing squeal

Tiny
ARCURLEY
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • MANUAL
  • 125,000 MILES
I have a 99' Grand Caravan 3.3L front wheel drive. I replaced the auto tensioner and idler pulley due to some bearing squeal. After replacing them and the belt the alternator started to develop a bearing squeal. I replaced the alternator and on a 15 min drive it started to squeal again. Could the auto tensioner be over tightening? It seems much tighter then the one I replaced. Any insight would be appreciated. Thanks
Tuesday, March 22nd, 2011 AT 4:05 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You sure you its the correct serpentine belt? It has an auto belt tensioner and shouldn't need adjustment
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Tuesday, March 22nd, 2011 AT 5:22 AM
Tiny
ARCURLEY
  • MEMBER
  • 2 POSTS
The belt has the correct number or grooves and matched the old belt in circumference. I know how unlikely it is, but the only explanations for the new alternator bearings squeaking is the new alternator has bad bearings or the auto tensioner is over tightening.
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Tuesday, March 22nd, 2011 AT 11:08 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
No, it can't be over tightening. There is another issue.
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Tuesday, March 22nd, 2011 AT 1:28 PM

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