chirp/squeal 2001 5.4 triton

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Old Nov 17, 2012 | 02:41 PM
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chirp/squeal 2001 5.4 triton

i have a 2001 f150 with the 5.4 triton. it recently has developed a chirping sound from the time any amount of throttle is applied until the throttle is released. i replaced the belt, the tensioner, the idler pulley, the alternator, and the water pump. it stil squealed. the power steering pump looked recently replaced, so thats why i did not get one. however when i was underneath it today i found some forward and backward play on it. i have heard this is acceptable, but i am not sure i believe it. could this be the cause of my squeal? and should i get a new pump and a new pulley?
 
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Old Nov 17, 2012 | 04:42 PM
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Does it do it with the belt off? If it does it is something besides belt driven components.
If not, you're only left with a/c compressor,power steering pump, or possibly, the fan clutch, as far as i know, since you've replaced about everthing else.
 
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Old Nov 17, 2012 | 05:00 PM
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the truck is a non-ac, should have said that. i just took the belt off, and the noise was not present.
second question here, where can i buy a high grade tensioner? the new one is rather poor quality, where the ratchet fits in already is warping after one removal, and it holds less tension than the old one
 
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Old Nov 17, 2012 | 05:15 PM
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Try rockauto.com. Could be a bad bearing in the alternator. Or a water pump.
 
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Old Nov 17, 2012 | 05:22 PM
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Originally Posted by kingfish51
Try rockauto.com. Could be a bad bearing in the alternator. Or a water pump.
both are brand new, purchased from a different place than the tensioner.
went cheap on tensioner because it was the only local place that had a non ac part. thanks for the rock auto tip!
 
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Old Nov 17, 2012 | 05:34 PM
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The idler & tensioner pulleys....not uncommon.
 
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Old Nov 17, 2012 | 08:19 PM
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Originally Posted by beechkid
The idler & tensioner pulleys....not uncommon.
Right, -actually a bad idler is more common IMO. Might be due to the fact that the tensioner should ALWAYS be replaced with the belt. If it wasn't, well....

Since they haven't incorporated better bearings for these parts (they could very easily), they tend to wear out. Today, I would not only change the tensioner complete, but also change the idler when performing a serp belt swap.
 
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Old Nov 18, 2012 | 08:12 PM
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What brand belt? Gates belts always come back with chirping. Put a Contitech Belt on and goodbye noises.
 
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Old Nov 18, 2012 | 08:42 PM
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Originally Posted by Volvit
What brand belt? Gates belts always come back with chirping. Put a Contitech Belt on and goodbye noises.
Looks like you found your belt. Personally, I've never had a problem w/Gates belts.
 
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Old Nov 18, 2012 | 09:00 PM
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Goodyear Gatorbacks are the best belts, if you can find them.
 
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