Conversation Between SwOkcOffRoader and blaira141

I would document all those codes. Then have it rechecked. Then check all the wiring on all suspected sensors.

It is a f150 fx4 2003 and there are 13 codes that I dont remember all of them bad

I seen your post on another page about a misfire in cylinder 6 the reason I'm posting is my truck just started misfireing bad on some cylinder after I replaced the alternator I had to drive it to work last night on way home I would get up to about 50 or 55 mph and the the CEL would flash till I slowed down to about 40 mph then it would stop is it suppose to do that