Misfire count
Thread Starter
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
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.
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.
Thread Starter
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
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?
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?
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
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.
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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Thread Starter
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
Thanks. 52k. I’ve had it for 10k.
Seems the misfires are at idle.
Checked while driving today and they were all zero.
Seems the misfires are at idle.
Checked while driving today and they were all zero.
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