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Lars(wi) 
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 8147
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 Topic: Pulled the trigger……………
Posted: 8 hours 19 minutes ago at 12:27pm |
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And acquired a 2012 Ford Expedition. 2wd, Limited. 143,000 miles, original owner got nearly every ‘upgrade’ option available at the time. Will be going into a shop, to deal with the ‘Cam Phaser’ issue that plaques the 5.4L. The shop has given us the option of the ‘stock repair kit’ or, for an additional $1,000.00 the ‘delete kit’. Will more than likely opt for the stock repair.
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Darwin W. Kurtz
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Joined: 06 Apr 2010
Location: Westphalia, KS
Points: 4998
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Posted: 8 hours 13 minutes ago at 12:33pm |
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how is the stock repair kit better than the original - if the phasers went bad before, won't it happen again. A local mechanic told me to steer clear of anything Ford for the reason of the phasers going bad
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Lars(wi)
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 8147
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Posted: 5 hours 20 minutes ago at 3:26pm |
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The the stock, would be Motorcraft. The delete would aftermarket. The aftermarket kit basically eliminates the VVT, and there are some sensors that are also eliminated, and a couple hours of re-configuration of the onboard computer. The stock option is basically replace with factory.
My mechanic says the worst thing people do with those VVT engines is extending oil changes. Sensors get dirty, cam phaser gets sluggish. He says to ignore the computer telling ‘oil change needed’, those generally will signal at 8,000-9,000 miles, that’s way too long for those engines, 3,500 mi, with full synthetic oil is the best, and cheapest thing.
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Darwin W. Kurtz
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Joined: 06 Apr 2010
Location: Westphalia, KS
Points: 4998
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Posted: 5 hours 9 minutes ago at 3:37pm |
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Thank you Lars, That explains alot - so if you change the oil regularly at a lower interval say 3500 miles. you have very little trouble?
So if a person is buying a used vehicle, one needs to check how often they changed the oil to avoid having to fix the problem
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 88419
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Posted: 1 hour 6 minutes ago at 7:40pm |
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Lars... your Mechanic is 100% on base... The variable cam timings is controlled by oil pressure thru a couple of small orifices.. Works GREAT if the oil is clean... Causes problmes and WEAR when oil plugs the ports... Some have trouble at 100K miles, some dont have problems at over 200K..... Go with the MotoCraft parts and change oil regularly.
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Like them all, but love the "B"s.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 88419
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Posted: 1 hour 4 minutes ago at 7:42pm |
GOOGLE search pretty well spells it out.........
------- A 5.4L Ford engine with Variable Cam Timing (VCT) can last well over 200,000 miles with proper maintenance, but its longevity is heavily dependent on addressing known issues like cam phaser problems and performing timely oil changes. While some owners have had issues, many report their engines are reliable when cared for, with some achieving 250,000 to 300,000 miles or more.
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Like them all, but love the "B"s.
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