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  #1  
Old 11-12-2014, 12:49 PM
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Diesel Exhaust in Cabin

Week old Summit. I noticed that sometimes when I stop at like a redlight I get diesel exhaust coming through the air vents. Doesn't happen while moving. Dealer is telling me "that's normal" and to set the climate control on recirculation and not fresh air. Doesn't sound normal to me as I shouldn't be getting pre-cat exhaust through the vents....

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  #2  
Old 11-12-2014, 01:33 PM
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Re: Diesel Exhaust in Cabin

The motor cooks off some manufacturing lubes and stickers which create some unusual smells. I'd give it another week before letting them tear into it.
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Old 11-12-2014, 06:27 PM
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Re: Diesel Exhaust in Cabin

I have had my Limited 4x4 EcoDiesel for exactly one year today, and have noticed that whenever I am at a stop light or sign with an accompanying tail wind, I get the diesel exhaust smell in the cabin.

There was a thread about this several months ago, and it has to do with how strong the vent fans are that draw fresh air into the cabin. They are so strong that even in a no wind condition, if someone is smoking outside the vehicle, the fans will draw the odor into the cabin and you will smell it despite the cabin air filter.


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Old 11-18-2014, 05:54 AM
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Re: Diesel Exhaust in Cabin

mine dont do it ever.. though it has had other issues mainly exhaust sensors and recalls...
Paul
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Old 11-18-2014, 09:38 AM
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Re: Diesel Exhaust in Cabin

At 2,600 miles, I've never noticed any odors in my Overland, just the sweet smell of the great leather interior. My friends are learning a thing or two about modern Diesel engines. No odors with just a slight clatter during initial acceration and no noise at cruise. Auto Diesels have come a long way.
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Old 11-19-2014, 08:42 PM
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Re: Diesel Exhaust in Cabin

2500 miles and it has an extremely strong exhaust smell at least twice per week. So strong that I've had to drive with the windows down while raining. The vehicle also has no power at that time. It barely responds to throttle input and the MPG plummets. Dealer initally said put AC in recirc. Crazy. Had the latest TSB applied due to CEL. Was told that may solve the problem since it may be caused by excessive fuel being injected. 5 miles from dealer the CEL was back on. Been waiting 2 weeks now for NOX sensors. This is the 6th time in the shop in less than 2500 miles. At this point I want my Hemi back
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Old 11-19-2014, 11:56 PM
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Re: Diesel Exhaust in Cabin

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Originally Posted by LP30 View Post
2500 miles and it has an extremely strong exhaust smell at least twice per week. So strong that I've had to drive with the windows down while raining. The vehicle also has no power at that time. It barely responds to throttle input and the MPG plummets. Dealer initally said put AC in recirc. Crazy. Had the latest TSB applied due to CEL. Was told that may solve the problem since it may be caused by excessive fuel being injected. 5 miles from dealer the CEL was back on. Been waiting 2 weeks now for NOX sensors. This is the 6th time in the shop in less than 2500 miles. At this point I want my Hemi back
Can you describe your driving pattern? How many miles do you commute? How often do you drive 15 miles without stops at 50+ mph? Thanks.
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Old 11-20-2014, 03:04 PM
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Re: Diesel Exhaust in Cabin

Are you sure its actually diesel exhaust you are smelling? I smell the oil smell all the time when stopped. The newer diesel oil they are using has a very strong, distinct smell. My 2012 Ram cummins used to smell like this too until I changed to Valvoline Diesel Oil. Just a thought.
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Old 11-20-2014, 09:43 PM
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Re: Diesel Exhaust in Cabin

I drive 60 miles round trip to work that is 50/50 highway speed/congestion. The smell is absolutely exhaust. It is episodic and always associated with a period of almost unsafe lack of power. If I were towing something at the time, I don't think it could even climb a small hill.

I just got it back. Took over a week to get a NOX sensor from Jeep. Only drove it a short time, but it performed better than at any time since I bought it. Good acceleration, responsive to the throttle. They did say they went through the exhaust and found some not completely tight bolts. That wouldn't surprise me since I had to pull over on the highway and tighten a bolt hanging out 3/4inch in one of the undercarriage covers with a whopping 45 miles on it. I did hear the lunch-time pot smoking guys filmed by the Detroit news station smoking joints then going back to the assembly line who were intitially fired at the GC plant were rehired. Maybe that's the group putting these bolts on after their lunch break
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Old 11-20-2014, 10:12 PM
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Re: Diesel Exhaust in Cabin

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Originally Posted by LP30 View Post
I drive 60 miles round trip to work that is 50/50 highway speed/congestion. The smell is absolutely exhaust. It is episodic and always associated with a period of almost unsafe lack of power. If I were towing something at the time, I don't think it could even climb a small hill.

I just got it back. Took over a week to get a NOX sensor from Jeep. Only drove it a short time, but it performed better than at any time since I bought it. Good acceleration, responsive to the throttle. They did say they went through the exhaust and found some not completely tight bolts. That wouldn't surprise me since I had to pull over on the highway and tighten a bolt hanging out 3/4inch in one of the undercarriage covers with a whopping 45 miles on it. I did hear the lunch-time pot smoking guys filmed by the Detroit news station smoking joints then going back to the assembly line who were intitially fired at the GC plant were rehired. Maybe that's the group putting these bolts on after their lunch break
Good to hear. The reason I asked about driving habits is due to the DPF regen. Short trip only use will almost guarantee that it's trying to regen all the time. Your driving is well suited to proper DPF health.

In reference to your lose bolts, the guys that added an aftermarket DEF injector skid plate almost unanimously found lose skid plate bolts. I spent a good 30 minutes tightening bolts under mine. Those weed toking union guys don't have to do squat to keep a job. Pitiful.
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Old 03-02-2015, 01:54 PM
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Re: Diesel Exhaust in Cabin

TSB released recently "SLIGHT DIESEL ODOR IN THE VEHICLE" - http://wk2jeeps.com/tsb/tsb_wk2_2400115.pdf
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Old 03-02-2015, 02:08 PM
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Thumbs up Re: Diesel Exhaust in Cabin

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Originally Posted by Jeep_GC View Post
TSB released recently "SLIGHT DIESEL ODOR IN THE VEHICLE" - http://wk2jeeps.com/tsb/tsb_wk2_2400115.pdf
Thanks for the update and link
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