Engine Performance problem
1999 Ford Expedition 6 cyl Two Wheel Drive Automatic 240000 miles
onlly does this when in overdrive. Spark knocking and backfiring. If you manually take out of overdrive it stops. Have 4 problem codes. P0171, P0174, P0401, P1450. Does anyone have any ideas about this problem. Thanks
have the same problem?
Sunday, April 5th, 2009 AT 8:36 PM