Where is everyone #5

Ford dealer said they weren't injecting fuel. Cutout test on those 2 had no effect on the engine. The intake manifold has a set of flaps in each bank to control the runner length. One side the shaft broke and caused the flaps to just do whatever they wanted. That threw another misfire code and was the reason for the manifold replacement.

I'll check the exhaust manifolds tomorrow and if nothing I'll just turn up the radio for now

 

In the 3v 5.4 we ran 15-40 and quieted it down a lot.

 

Broken manifold bolts is way more common on a chevy...

 

One of the reasons why I love, and stay with, old iron...

 

I have fixed way more on ford and dodge's than anything else. Edit except a Cat. But just my experience.

 

@AModelCat Sounds like your on the right track. But if you wanna verify coils why not use your multimeter and check resistance threw the coil vs unplugging and guessing.

Next statement is not meant to upset you or anyone. I tell it to myself over and over.

Keep it simple stupid.