Diesel fumes in the cab

[DDT]

I hope I can get some advice, dealer don't know. Only in the winter with the defroster on while idling I will get strong fumes in the cab. It is worse now than last winter. I have checked for exhaust leaks, none found. Am I missing some thing.

DDT

 

[Dual EE]

If your not finding any exhaust leaks, I would bet your air intake is just sucking in your exhaust. Ever since I installed the 370's I get this a lot when driving through town during the winter months. See if it happens on a windy day with your exhaust tip pointing down wind.

 

[FourBarR]

try genos cab filter kit

 

[Regcabguy]

Smell

try genos cab filter kit

My '99 does this ever since installing mach 1. 6's(dd2's prior) and a EZ box. I guess its just running richer. I've got the cab filter. It's helped slightly. We've got draft tubes on these things.

 

[Nate]

I get that every morning when I back out of the yard. I love it

 

[Matt400]

Am I missing some thing.

Yes... here ya go-

http://www.rounsevell.com/blowby.pdf



I did my 03 and later my 05 also. What you smell is fumes from the crankcase vent.

 

[DDT]

Thanks for the replys. Matt400, I'll bet that is my problem. If it works my wife will be alot happyer, it does get too strong after 5 min. Thanks again.

DDT

 

[HOBrian]

Just an after thought but, did you just change your oil?? The reason I ask is because I get a odor after every oil change that smells like diesel/oil. This may not be the problem, but I thought I would throw it in. Oo.

 

[DDT]

The last service was 3K ago, I run 5K oil changes. I use rotella T for the last 2 years. I only notice this oder when it is cold out and the defroster is on. My last truck never had this problem (2000

1 ton).