oil smell at a dead stop with a/c on

[AHutchison]

I've been noticing that when i come to a stop with the a/c running, there is a strong oil smell coming through the vents. I turn off the a/c and the smell goes away. I was wondering if anyone else has this problem or what a solution could be.

 

[JohnnyH]

Try running the A/C in recirculate. That seems to help on mine. The smell gets much less when you get about 1000 miles on the oil.

 

[Boondocker]

Blowby

Try doing a search on the keyword - blowby.

Or check this thread https://www.turbodieselregister.com/forums/showthread.php?threadid=102987&highlight=blowby

 

[Bob4x4]

The smell is most likely caused by the additive package in your oil. D/C now has an oil additive(lemon scented)For those that find it annoying.



Bob

 

[Blakers]

Your engine may be running a little hotter with the A/C on, thus burning off the leaked oil on your engine more.

 

[curatchko]

I haven't seen one that didn't give off that oil smell with the factory oil, or RoSmella T, or any regular oil. If you use a premium synthetic like Amsoil there is no oil smell at all. If not, then you will probably always smell that breather giving off the oil fumes.

 

[AHutchison]

Thanks for the replies. I'll have to experiment with what y'all said. I currently use amsoil and the truck has about 7500 miles on it. I'll let you know. thanks

 

[DieselB59]

I tried the Mopar Diesel Fresh additive. It smells pretty good, almost like someone's drying a load of laundry with a freshener sheet everywhere your truck is running.

 

[Blakers]

Originally posted by DieselB59

I tried the Mopar Diesel Fresh additive. It smells pretty good, almost like someone's drying a load of laundry with a freshener sheet everywhere your truck is running.

Oo. Oo. Next they'll be coming out with french fry scented diesel smoke! Oh yea, they already have that

 

[GerryDrake]

There have been a lot of threads on this. What I finally did was take a 5' section of 5/8" ID heater hose and a 3' section of 3/8" heater hose and connect them via a heater hose "T" that I got at the auto parts store. The "T" has one 3/8" and two 5/8" fittings. I ran the 3/8" hose up to by the grill to pick up airflow, and the 5/8" hose back to under the bed, with the "T" to the breather pipe that is just forward of the front differential, and is the source of the smell. I figure with the 3/8" hose supplying airflow, I won't have any problem with the rear hose getting plugged up. Just did this a few days ago, so haven't really had much chance to see if it stops the smell, but it ought to.

 

[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.

 

[John - K5AWO]

Originally posted by MALIBU

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.

Good post Malibu,



Got that one bookmarked

 

[CumminsBu]

!

 

[KHogan]

According to my dealer, DC doesn't have a problem with draft tube vapors being drawn into the cab at a stop with the recirc. switch off (first time the dealer is hearing about this problem). I try to remember that as I choke on the fumes whenever I stop and idle. If I can't get them to put the plugs in the cowling and extend the draft tube, I'll have to do it myself. Meanwhile, what's the part number of the Mopar "lemon scented" oil additive? Let's see if the cocky little P**** service writer at the dealer knows about that one.



BTW: anyone know the DC TSB number for the ECM reflash for '04. 5 driveability complaints? The dealer doesn't know about that one either.

 

[Bob4x4]

oil freshener part # 5139947aa



Bob