*Sigh*
Dammit, I spoke too soon.
The truck went for about a month or so, and the same damn misfire has returned, as of yesterday. the CEL hasn't popped yet, but that same stumble is evident, and I pulled the P0306 'pending' code.

I'm starting to think at this point, that my #6 injector is failing and it's time for a swap.

If that isn't it..I'm at my wits end. I've covered all the usual culprits, vacuum leaks, new plugs/wires and coil pack. The compression checks out across the board at 150+/- 2, I've cleaned the MAF, and replaced the IAC.

In replacing the injector, can the O-rings that seal the intake plenum be re-used, or should I go with my usual practice of replacing them outright?

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Illegitimati Non Carborundum!
(Don't let the bastards grind you down!)
2003 Edge x-cab, 3.0FFV, 5R44E, RW, 4.10 gears