Exhaust smell in cab

[DHull]

OK I had to take my 2008 back again for the famous check engine light. This time they installed a new turbo and EGR. Since having that done every once in a while I get a very strong diesel exhaust smell in the cab. Took it back the mech. said he never heard of this but will look at it. He said he saw nothing wrong checked everthing and drove it several times during the day found nothing. I picked it up and drove home as soon as I got there I could smell it. I got out of the truck and walked around front and could still smell it even outside also could see some smoke in the lights. Has this happened to anyone or does someone have a solution. Thanks

 

[HBarlow]

I smell diesel exhaust in mine occasionally when it is in the regen mode and I stop at a traffic light. The fumes carrying into the truck probably depend on the wind or lack of it and get picked up by the ventilation system fan intaking fresh air from outside.

My guess is it is nothing to worry about. You would probably never smell it if your ventilation system is in the recirculate position or if a good breeze is carrying the fumes away from your truck.

 

[DHull]

Thanks Harvey, I was hoping that was what it was, looks like the dealer would have known that.

 

[HBarlow]

With the exception of a couple of TDR members who are also Dodge dealership techs, most dealer techs are simply not real good sources of information on Dodge Rams with Cummins engines.

I don't mean to be harsh and unfair when I say that but few Dodge dealership techs own a Dodge-Cummins or have ever driven a Cummins powered Ram other than on a test drive when performing service. This puts the techs at a disadvantage because many of the things we know about our Rams is known only because we drive them every day. Not everyone needs or wants a Ram with a Cummins engine since it is an expensive vehicle best used for towing or hauling heavy loads.

 

[sag2]

It is fairly common, but if it just started after the turbo replace, ask them if they replaced the band clamp on the down pipe when they replaced the turbo. They are not to be reused, but no one replaces them. Also proper torque is important.

 

[Cosmo]

With the exception of a couple of TDR members who are also Dodge dealership techs, most dealer techs are simply not real good sources of information on Dodge Rams with Cummins engines.



I don't mean to be harsh and unfair when I say that but few Dodge dealership techs own a Dodge-Cummins or have ever driven a Cummins powered Ram other than on a test drive when performing service. This puts the techs at a disadvantage because many of the things we know about our Rams is known only because we drive them every day. Not everyone needs or wants a Ram with a Cummins engine since it is an expensive vehicle best used for towing or hauling heavy loads.

I'm a Subaru tech at a dealer group that has a Dodge/Jeep franchise next door, and I don't think any of the dodge techs own Cummins trucks. I would *love* to go to Cummins school, but I don't think they'll send me. Oh, I don't let them work on my truck.

 

[mc130fox]

It is fairly common, but if it just started after the turbo replace, ask them if they replaced the band clamp on the down pipe when they replaced the turbo. They are not to be reused, but no one replaces them. Also proper torque is important.

What is the proper torque, Sag? I need to replace mine.

 

[cacooke0205]

i had the same problem in my 08 i can bet you money it is that clamp, they probably didnt tighten it down enough or put it on right because that clamp can be a pain in the a** to get on right! good luck

 

[RScaletti]

That's exactly right, cacooke. Had the same problem after turbo replacement, took it back and that was the problem. Wasn't torqued properly. The exhaust in the cab was just unbearable.