Mechanics

SERVICE ENGINE SOON LIGHT

Ford Expedition

Hello I am truly frustrated with this light! I have changed coil packs, spark plugs, o2 sensors, air filter, cleaned the intake and flushed and cleaned the injectors I am in desperate need of an answer PLEASE HELP!
I got the vehicle scanned and it is telling me BANK 1 IS RUNNING LEIN. What can I do to resolve this problem?
JOSH MORRISON
Avatar
Josh morrison
November 26, 2007.




That would usually mean that THe bank one O2 sensor is bad. Do you notice any driveabliity problems? Reset the light see if it comes back.

Blackop555
Nov 27, 2007.
I did reset the light it did come back on I just repalace my K & N filter back to a paper filter hopefully that will resolve the problem. I did start having problems when I switched it out also the K & N did not sit well inside the housing I will let you know in a day or two
AD

Tiny
Josh morrison
Nov 27, 2007.
That may help! Good luck and hapy hunting

Blackop555
Nov 27, 2007.

AD