Hello, I have been trying to fix an issue for some time now. I have a 2009 Silverado 5.3 that is experiencing a misfire issue in cylinder 4. I have replaced the coils, plugs, wires and injectors. I’m getting spark and the plug smells like gas when I pull it out but it just isn’t working. I did a compression test on it and it was good. I also did a leak down test and it held pressure with and issues. The rockers are moving like the others so I don’t believe it’s the lifters. Any ideas or thought on what to look for next would be greatly appreciated.
