2003 expy tranny whine

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JulianOltean

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Been having this whine for a while 99% sure it's the transmission it gets real loud in drive, in park or neutral it's noticeable. Fades out while driving but while sitting in drive with brake applied is the worst same with reverse. I am expecting the worst there might be a loss of power due to slippage or something else I can only manage to get 360km to a tank does not like to tow anything. But I did get the truck like this have put almost 30k on it. Had the tranny fluid and t case changed 3 times also had the transmission clave body taken apart and cleaned.

2003 expedition 233,400km has had no major work done to it also rear main is leaking if that could create problems
 

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jacks3am

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Ide try removing the drive belt and starting it up to eliminate any engine accessories as potential noise makers. We had a truck come in making noise someone swore was a trans, turns out to be an alternator. Cover the bases first!

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