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Rattle noise coming from driver or passenger side wheels.

Tiny
SMYFF3
  • MEMBER
  • 2004 FORD F-150
  • 4.6L
  • V6
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
When ever I speed up to 45-65 MPH there is a constant rattle that comes from under my truck. It will go away if I press the breaks when cruise control is on or if I let off the gas when cruise control isn't being used. I checked all my head shields and all are tight and not moving. What could be causing this? Any info helps.
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Saturday, September 19th, 2015 AT 3:14 PM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You need to look at things like the driveshaft, u-joints and differential bearings.
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Saturday, September 19th, 2015 AT 4:21 PM
Tiny
SMYFF3
  • MEMBER
  • 2 POSTS
I crawled under my truck and with the palm of my hand I hit my catalytic converter on both sides. It does make a slight rattle sound. What are the odd of this being part of this issue? Also I did notice my differential case is leaking also my passenger axle seal is leaking. I don't know if any of this could play a part in the noise. Thank for the other advice!
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Sunday, September 20th, 2015 AT 5:56 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
That could account for a rattle but likely not a vibration.
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Sunday, September 20th, 2015 AT 6:35 PM

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