I have a 2008 Ford 250 diesel that is pouring out white smoke from the exhaust when it goes into "cleaning filter" mode. I really don't understand this because I have a dpf delete with a sct tuner. I thought with the tuner and delete the truck wouldn't go into filter cleaning mode . I contacted Ford and they said it was normal for white smoke to come from the exhaust during this process. Any idea what's going on maybe tuner is bad?

 

Your tuner didn't shut off regens. Do you have custom tunes?

 

When it happened to my truck it was an O ring on the turbo leaking oil into the engine block. Ford had my truck for a month trying to figure it out. Fun times.

 

My tuner hasn't turned off regens. The tuner is set up with the dpf delete on.

 

you need to remove the tuner, put the exhaust back to stock. Then make sure it is running right.

Then you need to consult your tuner manufactor to find out its functions.

Dpf installed in truck or not.

If you allow it to regen with no dpf in place all your doing dumping fuel into the exhaust.

 

Reread your tuner instructions or go to the SCT forum, something isn't set up right, if your truck is going into regen your tuner isn't working.