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2003 Ford Expedition has multiple codes PO174 PO307 PO308 PO316. No info is found online. Can someone help?
Wiki User
∙ 15y ago
Assuming the trouble codes on a Ford Expedition would be the same as in a Ford Ranger, the codes mean: P0174 = System adaptive fuel too lean (Bank 2) P0307 and P0308 = My manual does not list these codes, but P0301 thru P0306 refer to misfire at cylinders 1 thru 6 detected. P0307 and P0308 may be cylinders 7 & 8. P0316 = Misfire occurred during first 1000 engine revolutions Info from Haynes Repair Manual #36071, 1993-2005 Ford Ranger Pick-ups sounds to me like two bad coil packs on 7 &8 cylinders try moveing the packs to oher cylinders to see if it afects them,if it does then you know there bad.9 times out of ten 174 is a vac leak more than likely around the egr& intake.the po316 sould go away after 307&308 are repaired.
Wiki User
∙ 15y ago
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