Rough Idle Due to Cracked PCV Hose on Ford Expedition

The PCV hose may crack, causing the vehicle to idle roughly, this may or may not illuminate the Check Engine Light.

RepairPal Verified
Average mileage: 154,946 (110,230–218,000)
Engines affected: 4.6L V8, 5.4L V8
8 model years affected: 1997, 1998, 1999, 2000, more2001, 2002, 2003, 2004
25 people reported this problem
9 people shared problem details
2000 Ford Expedition- 5.4L V8136,000
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.
1997 Ford Expedition- 5.4L V8122,400
replaced entire pcv hose assy including valve
2000 Ford Expedition- 4.6L V8208,000
idled roughly, would die after idling for a few minutes, but when going down road would drive fine. pcv hose broken and was replaced, fixed problem
Replaced with Bulk Fuel Line and resolved issue
2000 Ford Expedition- 5.4L V8144,000
slight missing at idle. getting code p0171 and 0174.
2004 Ford Expedition- 4.6L V8185,000
Egr valve was sticking. Replaced and fixed problem.
1999 Ford Expedition218,000
Was having problems with truck rough idling, then started to die. Took it to our mechanic said it was the main hose to the engine.
2002 Ford Expedition- 5.4L V8130,340
Pvc line busted. broke air leaking car goes death if you don't press the gas.
1997 Ford Expedition- 5.4L V8155,982
I had extremely rough idle and most of the time it would not idle. I replaced the PCV plastic line with rubber hose. It has fixed the problem.
Related Items:
Rough idle in cooler weather below 50 degrees. Runs fine while driving at speed, but rough idl...
1999 Expedition V8 5.4L Rough Idle Engine miss Stalling
cracked head with 5000 miles on a remnufactured engine. Should whole motor be replaced or fix j...
First off Im a diesel tech cars are not my specialty... I had a type A misfire (flashing CEL...

Related Content