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Issue with 2004 expedition 5.4
Hello I’m new to this website and I’m very glad I found it. I’ve looked around here and found some things that could be the root of my issue but I’d figure I’d ask. First thing is it’s having a run in lean code on one bank and then a rich code on the other one. Along with a misfire on cylinder...- Outlooker65
- Thread
- 2004 expedition misfire p0171 running lean vaccum
- Replies: 6
- Forum: 2nd Gen - 2003 - 2006
