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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine




 
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Old 02-23-2013, 12:34 PM
00tec 00tec is offline
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2006 Power Steering Whine/Howl

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Just picked up a 2006 S-Crew Triton that needs a little TLC. The thing that is bugging me the most is the power steering pump whine/howl. I know this is a typical symptom of the older Fords, but has anyone had luck with any of the replacement brands to eliminate the whine? I tried the friction modifier, and if anything, it got worse.
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Old 02-23-2013, 01:07 PM
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danorules danorules is offline
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OK, I would do a flush and fill before buying a new ps pump. spend the extra $ and buy the synthetic oil and see if the whine goes away. Its a lot cheaper fix than a new pump. If that isn't the fix, then replace.

Also, the friction modifier goes in the differential oil not the power steering oil.that's probably why it got worse
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Old 02-23-2013, 03:37 PM
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Quote:
Originally Posted by danorules View Post
OK, I would do a flush and fill before buying a new ps pump. spend the extra $ and buy the synthetic oil and see if the whine goes away. Its a lot cheaper fix than a new pump. If that isn't the fix, then replace.

Also, the friction modifier goes in the differential oil not the power steering oil.that's probably why it got worse
I have read several posts recommending adding a bit of friction modifier to the PS pump to quiet the sound.
I believe this pump is beyond fixing it with a flush. It sounds like a late 80s Ford. The fluid in it is nice and pink. I don't really want to throw a $30 fluid change at a $60 pump for it not to fix the issue, then have to buy the pump and flush again, putting that new fluid in the waste pan.
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Old 02-23-2013, 11:42 PM
tylerclay tylerclay is offline
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Are you 100 percent sure its the ps pump? I would but a stethiscope on it, they are cheap, maybe five-ten bucks. Mine sounded just like that and it was the idler pulley bearings. If it's the ps pump buy a ford one not an aftermarket
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Old 02-23-2013, 11:42 PM
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