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Discussion Starter #1
I am throwing a code that states #7 misfire.
I have changed the plugs and it came back up same code.
I have changed the coil pack and once again same code.
Any ideas as to what the problem is???
What is left to trouble shoot?

Thanks for any advice.
 

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30,924 Posts
What did the plug look like? What did the connector to coil look like? Did you move the problem coil to a different cylinder to see if the error code follows? When was the last time you did a compression or leak-down test on the engine? Have you seen any moisture in the engines oil? Have you lost any coolant where you keep adding to the bottle but in a day or two, you need to add more again.

:)
 

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The only other thing I can think of is a bad fuel injector.

:)
 

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I am throwing a code that states #7 misfire.
I have changed the plugs and it came back up same code.
I have changed the coil pack and once again same code.
Any ideas as to what the problem is???
What is left to trouble shoot?

Thanks for any advice.
One,

X2 on what Mack stated.
 

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+ Hemi Addict +
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580 Posts
Internal damage can cause a persistent misfire, with the Hemi most likely a broken valve spring, bent valve, or a problem with the valve seat that would hold the valve open......has there been any rough idle, noises, surging, etc?

A compression or leak-down test will confirm any issue causing compression to be affected....
 
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