SOLVED - Cylinder 7 misfire

[InterceptorF]

I think the issue was the lower o-ring on the #7 injector, it looked wonky, but I had a replacement injector so just replaced it. The engine smoothed right out. No test drive yet as I also replaced the oil pump and o-ring so the oil pan RTV is curing. It's so much easier to drop the oil pan with the 6" lift; still not 'easy' but does help! Hoping all this work on it the past couple of months is coming to an end.

 

[InterceptorF]

RESOlVED: It was definitely the #7 injector! Runs smooth and no codes are being thrown! Also the oil pressure is back to a solid normal >> 38-- 46 psi.

 

[Tonyv__]

Holy Crap! Yes, I did check my cam through the lifter bore - it was fine but I did replace the injector and the engine smoothed right out.

Good. Would suck to have to rip it all apart again.

 

[Rocket Man]

RESOlVED: It was definitely the #7 injector! Runs smooth and no codes are being thrown! Also the oil pressure is back to a solid normal >> 38-- 46 psi.

Awesome. Thanks for coming back and updating the thread.

 

[89Suburban]

RESOlVED: It was definitely the #7 injector! Runs smooth and no codes are being thrown! Also the oil pressure is back to a solid normal >> 38-- 46 psi.

Yay!!!!

 

[RAMurphy]

Always a great day when you resolve an issue. Nice Job.

 

[Joe-ty]

Also swapped coil 7 with coil 3

Why would you swap with the number three? Why don’t you swap with number five? Is there a difference?