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Whats up fellas so my ram is throwing out the p0303 code which is the cylinder 3 misfire. I changed the spark plugs and changed the coil but its still throwing it on. The check engine light starts to blink only when i step on it and after that the truck will start to idle rough and jumpy. Any ideas ??? TIA
 

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Start with a compression test, then pull the valve cover and check for a broken valve spring.
 

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Sounds a lot like my 2012 and it was the cam. I did mine right when quarantine happened. So I had some time to do it.
 
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