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Noise

Tiny
HPOLTE
  • MEMBER
  • 2006 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 62,000 MILES
2006 Dodge Grand Caravan - loud hi pitched hum after driving on the interstate, doesn't happen in around town driving.
Tuesday, April 26th, 2011 AT 3:27 PM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
There is a tool you might be able to borrow or rent from an auto parts store that borrows them called the "Chassis Ear". It is a set of six microphones, a switch box, and headphones. You clip the microphones to suspect points, then drive around while listening with the headphones. You can move the microphones around to zero in on the source of the noise. Be aware that many mechanics have never seen or even heard of this tool. Suspension and alignment mechanics use it to find rattles, squeaks, and other noises.
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Tuesday, April 26th, 2011 AT 9:21 PM
Tiny
DAVE'S BIG BACKYARD!
  • MECHANIC
  • 262 POSTS
Sounds like a hub barring to me, now you need to find out which one it is.
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Wednesday, April 27th, 2011 AT 2:46 AM

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