Today I drove to dinner in my 6.7 with no problems then on the way home my brother said he noticed my truck was white smoking quite a bit and he said there was a very strong exhaust smell coming from my truck ( he was in his car behind me) I ran a diagnostic test and what came up was code P0401 (I believe thats right) Can anyone help to see figure out what is going on with my truck before I take it to the mechanics and get charged up the ***. The truck still has DPFs in it just has a DPF back exhaust and has a AFE cold air intake running on a stock tune.

How ever I do have the DPF deletes and EGR delete sitting in my garage just haven't gotten them on the truck yet. Do y'all think that could make a difference?

 

I'd figure out why the white smoke before making any big changes like doing the delete. Going on the assumption that it was white smoke & not condensation burning off.

Does the exhaust smell like coolant?

Any chance there was a big temperature drop while you guys were eating?

 

white smoke - water

blue smoke - oil

black smoke - fuel

 

This is a duplicate post...

https://www.ford-trucks.com/forums/1...012-6-7-a.html