I have a 2000 exp with the 4.6. It is running rough and showing code for lean bank 2. Can someone give me an idea about what would cause this code. Ford dealer wold not help they just wanted me to pay to run diagnostics. I just cant afford that right now,but I would really like to have me truck runnig again. If you could help me it would be great. Thanks for looking.

 

You have a vacuum leak, probably.

 

I have checked all vacumm lines and I can not find a leak. Any other suggestions?

 

Keep looking. Leaks are not always a line.

 

I will look again. I will let you know what I find. Thanks

 

I took it into the shop today. They said that somehow I had antifreeze down around cyl 5 & 7. He cleaned them out and said that It was running better. Thanks for trying to help me out. Jamie

 

Check for leaks in the heater hoses that run above those cylinders.

 

It was a crack in the thermostate housing.Thanks for the suggestions. Jamie

 

I had the same error code, found I had left the oil filler cap off. (oops)