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I have a 2004 f150 4x4 5.4L with 46000 miles on it. @ 32,000 miles I took it to the dealer because of a squeeling from the belt area @ first start up. They said it was the belt, and replaced it. No more problems until today, same thing was going on as before. A belt cannot wear out in 14000 miles? so like an idiot I sprayed some belt dressing on it, now it is 5 times worse than it was!! Please help!!!
oops, personally i have only used belt dressing 1-x in my life many years ago and it was a nasty sticky mess that had goo on the underside of my hood and everywhere else. i would go back to the shop that installed the belt and have them look at it you may have a defective belt or a bad pulley. sorry
The belt is gone. Get some brake Clean, lacquer thinner or some similar solvent and have at it. It is going to be fun cleaning up the micro groove pulleys. Belt dressing is real, real old school. You do have another problem that still needs to be resolved. Maybe a weak belt tensioner, maybe a component taking too much torque to operate.
I went through the same thing. One tip, remove the air intake tube from the fender wall. Then take off the bracket on the front of the engine it attaches to. This gives you a lot more room to work. Next I used a lot of carb cleaner and worked on all the belt surfaces as well as all the pulleys. You will have to clean out all the pulleys anyway before the belt gets changed or else it will start chirping also. After doing that I got the noise down to an acceptable level and brought it into my dealer. In this case they actually behaved nicely and changed the belt under warranty! When the belt was changed all the chirping noises stopped and haven't come back yet although I'm thinking getting the s belt changed on a yearly basis may be good preventative maintenance.
my belt did that too after only 3000 miles and belt dressing made it worse. The dealer replaced it under warranty, actually I think there is a TSB for it. At 23k miles now, I get a slight chirp every once in a while when it's real cold or damp/dewey out. But it's not loud enough to bug me yet.
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