1999 Ford F-150 Truck

1999 FORD F-150
184,000 MILES • V8 • 4WD • AUTOMATIC
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JADREW
  • MEMBER
  • 1 POST
A pulley on my 1999 Ford F150 is making a siren or buzzing type sound constantly when engine is on. Is the pulley bad?
Jan 15, 2011 at 5:33 PM
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FORD MAN
  • MEMBER
  • 115 POSTS
Depending on which pulley it is, will tell you which bearing has gone to hell.

Ford Man in Michigan
Jan 15, 2011 at 7:20 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Remove the serp belt and check for excessive play in all of the accessory pullys. Also, spin the pullys to see if you can tell if there is excessive noise coming from them. Like Ford Man said, the only way to tell is to locate the noise so you can tell which bearing is bad.
Feb 23, 2011 at 1:19 PM
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