engine squealing after rain
I hv an '04 with 5.4 3v. After it rains, I get this loud squealing/metal-on-metal sound in the engine compartment. It sounds like its coming from the ps pump, but I'm not for sure. It seems to be getting progressively worse ( taking longer to go away). I had to replace the thermostat today and after i finished, I hosed the engine off to remove what little bit of coolant that got on the engine. I drove to work and it just about drove me crazy. Any thoughts as to what it could be? Streering seems to be ok. I almost wish it would break/quit working so I can fix it.
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have you looked at all the suspension make sure nothing broke loose, it might be the belt squealing
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sounds like its the belt to me. is the tensioner working? take the belt off and spin all the pulleys by hand and see if you hear anything.
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I know its not in the susp, because it does it when truck is not moving
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Get a new belt.
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possibly a locked up or locking up pulley if it has a metal griding sound, but probably just belt.
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Definetly check idler and tension pullies as the roller bearings do go bad. They will Grind and lock up. I have had to replace them on several cars and trucks. I just had one that locked up on the idler pully and the gal drove it till the bolt froze on the inner race. I had to go to the boneyard to get a bolt for it as Ford dealer dose not have them and they don"t come with a new pulley. It is a special shouldered bolt and that is the only place I can find one. Best of LUCK!
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had same issue when i had my explorer sport track, after a rain or when it was hummid out the idler pulley would sqeele like a pig, it was from the moisure in the air.
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