p0316

Smart ford owners, tinkers and mechanics; Looking for assistance, help and advice! We have a 2004 Ford Explorer 4.0L SOHC v6 with about 71k miles on it and misfire problem that I haven't been able to get to the bottom of yet. I have a scanner with live data capabilities if there are other...

My 4.6 XLT 2003 has codes p0306 and a p0316. I have put on a new dorman intake manifold, new motorcraft plugs, new cop boots. I have moved the cops and fuel injectors around but the misfire stays in cylinder 6. Pulled all plugs and all look good. Compression for 1-4 is 190psi, 5-8 170psi. I...

First off, I am a new member here. I have gotten lots of good advice from this forum already and GREATLY appreciate it. Unfortunately, I have a whole new problem. I have a 2007 Mountaineer with the 4.6L, 72K miles. Today when driving home from work it started shuddering, idling rough and...