I have an 02 Ranger that came in with misfires on 4, 5 and 6. just a few. re-set monitors, and drove, now have misfires of 1, 2, 3. re-set again!, now just misfires of #6....

i'm stumped. All we have done to this was replace a pcv hose, I have inspected twic... Login to read more.