2003 3400 V6 Misfire Code P0302

mcsew2k

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Hello,

I have a flashing Check Engine light that reads Code P0302.

1. Swapped plugs, wires and coils around - no change and seems to have strong spark on cyl 2.
2. Performed compression test - all cylinders 119 to 122 psi and #2 was highest.
3. Pulled upper plenum and swapped injectors and installed new plenum gaskets - no change.

Am I forgetting something or is it time to pull the intake manifold?

Any help would be greatly appreciated.

David
 

mcsew2k

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I removed the valve covers and discovered that the intake on that cylinder has a rocker bolt that pulled out of the head.

I am in the process of time-serting all the holes and replacing the head gaskets.
 
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