Diesel smell in AC

[Tinsmith3]

Problem,

I'm getting a raw diesel smell through the AC, but only when I'm stoped or moving slow.

I took it in to the dealer, the said they couldn't find it. But he did spray something in the ducks to mask the smell for a few days. I can't find anything loose or anything wet on the engine, but the smell is still there.



Any idea's??

 

[PJereb]

It is the engine breather, an engineering goof, it vents to atmosphere near the starter, so when you idle, the fumes rise and get sucked into your cab. If you use the search feature on the board you will come across some creative solutions.

 

[EEngel]

Smell

Tinsmith3,



I'm not sure if it is available for the 3rd gen trucks, but I have seen carbon filters for other diesels vehicals that "remove" the smell.



I have never had one, so I can't say if they work, but it's a thought.

 

[Prairie Dog]

It seems to stop once the eng is broken in. You could either extend the tube downward or install a catch bottle like the second gen CTD's had if you don't want to wait.

 

[CumminsBu]

I SAW THIS POST FROM CFENTON AND I HAD THE SAME MISSING PLUGS. YOU CAN DO A FORUM SEARCH, TYPE IN "CAB FUMES" FOR THE REST OF THE THREAD. GOOD STUFF!



Cab Fumes - Dealer Solution Proposal



I experianced cab fumes when external HVAC is on. I also lacked plugs in the frame rails, taped instead from factory. At my first oil change (free from dealer!) I pointed out the missing frame rail plugs. The dealer ordered them and installed them - no charge.



I followed the discussion threads on fumes and absent plugs in the HVAC cowling and am guessing they may be related to absent plugs in the frame rails. If they ran out of one, they may have run out of both during assembly. The frame rails are externally apparent by looking underneath, the cowling requires disassembly to determine if present or not.



Here is what I did. I took my truck in on the transmission cooling line recall and explained to the service techician that I though the cowling plugs could be missing. I told him that I wanted them to remove the cowling and check for the plugs. If the plugs were there, I would pay the dealer the cost of removal and replacement. If the plugs were missing, then it is Chrysler's fault and they pay the dealer. The dealer/technician agreed.



The plugs were missing. They ordered plugs and will install them - Chrysler picks up the bill.



I had asked for the cowling parts description from their parts department. I combined that the pictures from: http://www.rounsevell.com/blowby.pdf . Both helped the technician, by demonstrating the part was supposed to be there according to assembly diagrams, and demonstrated pictorially where they were absent.



I will post results after the plugs are put in. I am interested in polling how many trucks, missing frame rail plugs, experiance cab fumes.

 

[EEngel]

Plugs

MALIBU,



Thanks for the illistrations and the description. Keep us posted on the results.