Recent content by awb594
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Rough idle? P0171, P0174? Here's what you need to check first!!!
Can't find the problem I have a '01 Expy 5.4L with a P0174 code I have been chasing for months. I have replaced the "elbow" hose all the way to the pcv valve. Got a new MAF from Ford. Cleaned the TB replaced the plugs, new fule filter. Finally I got the light to go out for about a month and now...- awb594
- Post #39
- Forum: 1st Gen Ford Expedition Engine & Performance
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