Exhaust smell in cab

[LarsG]

Have a 2006 3500 quad cab. Recemntly started to smell exhaust in the cab sometimes. Seems to occur for a few minutes after re-start when engine cooled down partially. Had a Pac Brake installed in October, wonder if related. (Makes no difference if Pac Brake activated or not. )

Any advice/ideas?



Lars G.

 

[rbattelle]

Do any of these threads help?



Thread 1.

Thread 2.

Thread 3.

Thread 4.

Thread 5.

Thread 6.

Thread 7.



Ryan

 

[TCDiesel]

If you use your Pac to Warm Engine, this will Increase CCP, the breather will emit more exhaust which in turn will get pull into cab when heat is on, Try different oils, or recirculate in Cab heat until truck is moving. Cummins Blue seem to emit less while S-3000 (Most Synthetics) from amsoil seem to be the worst. (odor)