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changed thermostat now chirp at idle

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Old Nov 30, 2008 | 05:35 PM
  #1  
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From: under the hood of my truc
changed thermostat now chirp at idle

changed my thermostat on my 95 f350 460 cause it was running cold all the time, and i made sure it went in the right way and everything, filled it up with coolant and let it run, it had like a belt squeel until the thermostat opened up now just a chirp at idle, maybe there some air still in the system, i just got done changing it so maybe when it cools down all the way those extra air bubbles will come out. my question is, is that noise normal after changing the thermostat, i know my water pump is good, hell it was over cooling before the t stat was changed, it works good now but with that noise. any help would be appreciated thanks.
 
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Old Nov 30, 2008 | 05:45 PM
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did you get some coolant on the belts?
 
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Old Nov 30, 2008 | 06:19 PM
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From: under the hood of my truc
yea i prolly did no noubt, it just seemed wierd that when i first started it up it squeeled untill the thermostat opened then quieted down, just went out and checked the resovoir and added coolant, engine still warm so ill give it a couple more hours to totally cool down and see what happens. it does sound like a belt, its also was raining when i did the change, and still is so. thanks for the quick reply
 
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Old Nov 30, 2008 | 06:26 PM
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95F350XL
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You prob need to clean the belt. The coolant can make it chirp.
 
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Old Nov 30, 2008 | 06:28 PM
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From: under the hood of my truc
wouldnt the coolant burn off like water or does it make it sticky and end result this sound?
 
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Old Nov 30, 2008 | 11:16 PM
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From: McKenzie River
No, ethylene glycol hangs around a long time and lubes the rubber belt. I assume its serpentine belt so its easy to pull the belt and wipe it off w dry paper towels. then do yourself a favor and wipe the pulleys off w/ lacquer thinner. should quiet right down.
 
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Old Dec 1, 2008 | 10:36 AM
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if belt is old i would just replace it.

i only use goodyear gatorback belts.
 
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