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I know that Ford has had problems for power steering whining for a while, and I'm just lookin to see if there's a fix. I got a '92 F250 with the 460 and C6 transmission. I asked the parts guy at Napa about it, and he said that because Ford used a plastic fluid container, it makes the whining noise. And that replacing it with an aftermarket metal container would stop the whining. I don't really think that's the case.... it seems to simple. I was thinking more along the lines of a new pump? It really only whines when I turn the steering wheel, and for a good 10 seconds after I straiten out. Truck runs fine, it just bugs me. I only got 71,000 miles on it too, so it can't be that worn out?
Mine whined really bad until I read about using ATF Type-F in there. The last guy had been using the clear stuff and it sounded horrible. Flushed and filled and it's quiet enough for me.
my was horrible while i was using regular cheap atf. not only would it whine but i also had a problem where id loose my caps. one day i decided to use some left over mercon and it stoped havent had either issue since
Someone today gave me a tip that seems to work for this problem. Seems most of the whine comes from the fluid becoming aerated as it gets old. Simply changing the fluid makes a lot of the whine go away. Probably why the synthetic fluid makes less whine because it may hold up better and not get frothy.
Put this in the pump. If it doesn't stop the noise, it can't be stopped. I've used it for years in many vehicles, with almost instant results. One Aerostat van had the pump full of water, and could be heard for about half a mile. After I flushed out the pink wipped cream, and installed new fluid, it was almost as bad as before. I put in Lubeguard, and within 10 minutes I couldn't hear the pump. Six years later it is still quite.
NAPA also sells this under their own brand, but in the same bottle.
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