engine miss

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Old

Apr 19, 2021 | 10:19 AM

#1

oldtrail

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4wd Low

Joined: Apr 2021

Posts: 14

Likes: 0

engine miss

Hey all, 2005 f150, 5.4, changed all coil packs, still have a missing under load. Scanned with snap on scanner didn't really see anything, suggestions?

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Old

Apr 19, 2021 | 10:22 AM

#2

ford390gashog

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Joined: Jan 2004

Posts: 26,007

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From: Brentwood,CA

Club FTE Gold Member

What does the mode 6 data show? Is this misfires on all cylinders? Confirm genuine plugs and coils are in use ( Amazon and Ebay are flooded with clones for reference).

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Old

Apr 20, 2021 | 04:38 AM

#3

JWA

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Joined: Aug 2010

Posts: 21,253

Likes: 1,656

From: Reynoldsburg, Ohio

Quote:

Originally Posted by ford390gashog

What does the mode 6 data show? Is this misfires on all cylinders? Confirm genuine plugs and coils are in use ( Amazon and Ebay are flooded with clones for reference).

Here's a YouTube video I found helpful concerning counterfeit Motorcraft parts identification:

HTH

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Old

May 4, 2021 | 07:41 AM

#4

oldtrail

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4wd Low

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According to ford several plugs were misfiring, so replacing them.

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