Recent content by tyasco
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P0171/P0174
Just joined to share my experience. Got P0171 even though running fine. Replaced MAF, cleared code, but came back with P0174 as well. Pulled intake covers off, found some disintegrated vacuum hoses, replaced them as well as PCV. Cleared codes, no more problems.- tyasco
- Post #4
- Forum: 1st Gen Ford Expedition General Discussion
