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Fuel Odor

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Dynoed Truck

Coolant Flow thru Heater Core

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I've noticed an occasional raw fuel odor when I slow from cruise speed to idle. Before I take my HO to the dealer, I wondered if any one else has this problem.





"03 HO 3500 Laramie 48RE
 
Seems worse for me right after oil changes most likely the breather hose, look under the hood for leaks but my bet is the breather hose.



I get used to turning off the blower fan when it's bad at traffic lights, just one of the joys of owning a diesel.
 
Mine appears to have a slight leak from the injection pump. Just enough fuel to make it smell but not enough to drip.
 
Some guy posted a fix complete with pics and a pdf file. I printed it off... just in case... :confused: Do a search on the forums and you should be able to come up with it
 
Breather hose.

Mine has a smell as well and I think it is the breather hose. The smell is like a diesel and engine oil mix. It is stronger after a oil change.
 
Diesel smell

Just took mine in and it turns out that some of the high pressue pumps have porous cases and have a tendancy to seep or drip,mine is getting replaced today.
 
the only time i notice any diesel smells is when i first start up when cold [leaving from work at midnight] and when cleaning the white off the windows, i can smell unburnt fuel coming out the tailpipe when it kicks up to high idle. doesn't bother me at all though...
 
The other day I went to pickup my uncle and left the truck idling in his driveway for what I thought would be a minute or two. His wife insisted on making me lunch and when i looked at my watch the truck was idling for about 45 minutes. Needless to say the inside of the cab had that beautiful diesel aroma. And to be honest I enoyed it very very much. I wonder if could bottle it and make it into some sort of cologne... ... . any buyers:D
 
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