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Old 07-11-2012, 08:47 PM
Grandslam99 Grandslam99 is offline
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6.2L Misfire cylinders 4 & 7

Has anyone had cylinder misfire codes and had a sucessfull repair. My 6.2L, 12,000 miles towing has experienced #4 & #7 misfires. It's build date was 8/2010 and falls within the parameters of TSB 10-25-7. According to the servicing Ford dealer the Tech has examined the Rockers/Cam shafts and states that they look okay. Coil packs were moved around and still only cylinders #4 & #7 are reporting misfires.

Any help guys? Raptor's also are listed as experiencing this issue.

Thanks.
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Old 07-11-2012, 11:29 PM
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fixnair fixnair is offline
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Switch sparkplugs, if still there switch injectors, if still there do a compresion test.
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Old 07-13-2012, 05:01 PM
Grandslam99 Grandslam99 is offline
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Smile "It's Fixed??"

Just back from the Ford Dealer, NO check engine light. Here's the story as I understand it. No mechanical issues, ALL rockers and Cam's look good, coil over plug on #4 and #7 were replaced, no change. Ford Tech Hotline had Local Tech make the computer relearn the crank/cam shaft sensor position. This is what the paperwork called "Performed CKP Neutral profile correction."
This corrected some "bad learning" in the adaptive power section of the computer.
In the next week or so I'll re-attach the Boat and Trailer and see what happens when we are towing it above 4.5K on the Tach.
If it goes South again I'll report back on this thread.

Enjoy!
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Old 12-16-2013, 02:57 PM
sergefournier sergefournier is offline
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Ford F250 6.2 2013 Power Balance Loss of RPM contribution

Ford F250 Power Balance Loss of RPM contribution on cylinders 4 and 7.

This is a brand new truck with less than 5000 km. We have been back and forth to the dealer arguing the lack of power on this one. I was only last week, after six months of struggling, that we made a road test with a 6000 lbs trailer when the code came out on their engine monitoring tool hooked up while driving.

This is how Ford references this in their OASIS stuff. This is a known problem without any solution. This is what says the SPECIAL SERVICE MESSAGES #44156, 44155 and 32247 that they are referencing in the paperwork they gave me. I can email this to you if you need it.

This make my truck less performant than the old 5.4.

If you find a solution, please advise.

I am trying to have them to buy back the vehicule.
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Old 12-16-2013, 02:57 PM
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