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Cylinder 8 Misfire

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Old May 20, 2017 | 12:15 AM
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J.oliver97's Avatar
J.oliver97
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Default Cylinder 8 Misfire

I have a 2012 ram hemi. So just recently when I get into the gas the check engine light comes on and the truck starts missing. I can let off the gas and give it a little bit and it shakes bad and misses. I can turn the truck off then back on and it stops until you get into it again. It's showing cylinder 8 misfire detected. I changed the coil and it stopped for a few weeks, and just started again. I changed both plugs and it did not solve it. Therefore I'm thinking the coil may be bad again. Any other ideas on what it could be? Thanks in advance.
 
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Old May 20, 2017 | 09:30 AM
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TNtech
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Originally Posted by J.oliver97
I have a 2012 ram hemi. So just recently when I get into the gas the check engine light comes on and the truck starts missing. I can let off the gas and give it a little bit and it shakes bad and misses. I can turn the truck off then back on and it stops until you get into it again. It's showing cylinder 8 misfire detected. I changed the coil and it stopped for a few weeks, and just started again. I changed both plugs and it did not solve it. Therefore I'm thinking the coil may be bad again. Any other ideas on what it could be? Thanks in advance.


What did the coil you took out the first time look like? Did it look like it was oozing black goo out the side?
 
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Old May 20, 2017 | 05:04 PM
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That's negative. Update: changed the coil again thinking maybe I got a bad one, still did not fix it.
 
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Old May 20, 2017 | 06:02 PM
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flat lobe on the cam
 
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Old May 21, 2017 | 01:05 PM
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Originally Posted by Pedro Dog
flat lobe on the cam


Seen a bunch of that lately on Hemis.
 
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