Rocket Man's 02 Denali Build Thread AKA "THE BEAST"

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Tonyrodz

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Depends on what you mean by small Tony....didn’t we just go through this in another thread ;) ? They’re fatties. But short, just long enough to go from the plug to coil so they stay centered and don’t come close to headers.
Did we? My memory sux.
 
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Rocket Man

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Well I replaced the plugs today along with 3 of the wires that needed replacement. Then I retorqued the SC bolts that I could get to easily, in the center which is the area of misfires, #4 & #5. I still see a lot of misfires on those two cylinders, not sure if it’s any better. I got the P0300 once after the plugs and before the torquing. I cleared it and went for a drive. Funny thing is, it’s always ran great- I can’t tell it’s misfiring. I did a few WOT pulls and drove around a bit and filled the tank. It didn’t throw the code. Sigh. It’s not over, I’m sure. It sucks to go through the hassle of replacing plugs and see no change. Oh well. I’ll just have to see. Plugs looked a bit fouled but not terrible. Included is a pic of plug #8 with decent access once I trimmed the evaporator heat shield.

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