Report: Rough Idle Due to Cracked PCV Hose
Ford Expedition Problem
Engine Affected: 5.4L V8
Average Mileage: 130,740 mi (122,100 mi - 144,000 mi)
The PCV hose may crack, causing the vehicle to idle roughly, this may or may not illuminate the Check Engine Light.
Visitor, 1997 Ford Expedition, 5.4L V8, 122,400 mi
replaced entire pcv hose assy including valve
Visitor, 2000 Ford Expedition, 5.4L V8, 136,000 mi
Rough idle, stalling on my 2000Expedition. Code came up as PO171. Found a leak in my PCV hose at bend. This is a Ford only part. Went to local Ford dealer and ordered the hose with the PCV valve included. Replaced it myself. Problem solved.Ford part # 2L1Z6758GA.
slight missing at idle. getting code p0171 and 0174. firstname.lastname@example.org