See if noise is in what used to be your distributor location. It is called a camshaft synchronizer. The camshaft sensor spins around in this assembly. If it has play in it the sensor will rub on the assembly & cause a squealing noise. It will generaly set check engine light for bad camshaft position sensor. If you buy the synchronizer new it will come with the tool needed to properly install the sensor at its correct position.
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