2003 expedition issue
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New User
Joined: Dec 2009
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2003 expedition issue
Hi there! new to the threads... my truck was throwing the 171 and 174 codes. autozone (i hate them) told me it was the MAF sensor. i bought a new one and my husband installed it. it runs great going down the road but sputters when idle. is it possible that its NOT the MAF sensor? could it be the O2 sensors? something else? do i need to disconnect the battery b4 testing it out? HELP!!
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Joined: Dec 2005
Posts: 2,815
Likes: 148
From: Billings, Montana
Welome to FTE. Sounds like a vacuum leak, see the following. https://www.ford-trucks.com/forums/9...174-codes.html
