Thank you again for all your help.
have a Merry Christmas my friend.

 

Merry Christmas Buddy

 

I hate to admit this, I lost all the posts you sent.
can you tell me the name of the valve again?

 

The purge valve is a common problem with Fords. I'm thinking the valve is out of range, thus needing replacement. This code usually goes away with this part. I just replaced one recently. F7UZ-9C915-DA was the Ford part number

 

I am writing that down.

Thank you.

 

Lol.. go to Google Images and type in 03 F150 4.6 purge valve and it will bring up a hundred pics of it and where it is located...

 

I did, and it showed me what I needed to know.

Thank you

 

My error,
the engine code id P405

 

I have not solve the P405 engine light problem yet. I have change the EGR
valve 2 times, the DPFE sensor twice, both of the other sensors and still
when the temperature gets above 40 deg, the light will come back on.
I do see some moisture in the vacuum lines when I have check them
before re-setting the engine code.
the engine runs good, and I do not see any carbon build up in the
throttle body.

Any ideas?

 

Did you change the purge valve like we disguised ?