exhaust smell in cab

[newapple]

07 f250 Getting exhaust smell in cab after driving approx 15 miles with heat on. If I switch HVAC control to inside it goes away immediatly. Been back to dealer (not founded) This problem is not evident ill driven at least 15 miles. Dealer smoked truck to no avail? HELP !

[6.0Sean]

Bummer, bump for help...

[bigcountrysg]

Sounds like an exhaust leak somewhere. Check around the up pipes of the turbo, check the down pipe of the turbo, check the manifolds. I know this problem has been discussed on here before I will see if I can find you links to those threads.

http://www.powerstroke.org/forum/sea...earchid=439554

Here is a link you will have to go through the threads and read them.