5.0L Coyote 5.0l Ford OHC Coyote engine for 2011+

Misfire count

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Old 09-18-2018, 07:33 AM
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Misfire count

should they all be 0?
only one shows 0.
Highest is 11.
No CEL.
This is using AutoDoctor.
Some days I swear I feel a misfire or slip around 50-60 mph under idle/light throttle. Never any issues under load.

Lately ive been unable to post pics in original post.
Works with reply. Using iPhone and “manage attachments” along with the pic icon.

 
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Old 09-18-2018, 07:34 AM
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This is just sitting in my driveway idling a cold engine.
Cylinder 4
 
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Old 09-18-2018, 07:48 AM
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Just drove down the road. Pulled over and it only registered three cylinders. All had 0 values across the board.

By the time time I returned home it only showed cyl 8, 0 values.

Then just before fore I turned the key off, 8 disappeared and it showed nothing.

I’m new to this as you can tell.

Is all this normal?
 
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Old 09-18-2018, 03:59 PM
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Thank you for any comments or answers.
 
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Old 09-19-2018, 08:47 PM
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Anyone? Before I take to the dealer for transmission service. I’m probably just nuts.
 
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Old 09-20-2018, 07:43 PM
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bump....Thanks.
 
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Old 09-22-2018, 08:20 AM
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How many miles on the truck?

Ideally misfire counts should be zero, but small numbers like that aren't always cause for concern. I'd recommend pulling the plugs and seeing how they look. If they look good, swap the plug to the adjacent cylinder and see if the misfire follows.
 
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Old 09-22-2018, 06:09 PM
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Thanks. 52k. I’ve had it for 10k.
Seems the misfires are at idle.
Checked while driving today and they were all zero.

 
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