weird exhaust smell? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 11 (permalink) Old 03-03-2010, 10:52 AM Thread Starter
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weird exhaust smell?

does anyone know why my truck stinks like crap? it almost smells like moth balls or something to that effect.

i think its the catylitic converter. is that possible?

thanks
erik

Erik

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post #2 of 11 (permalink) Old 03-03-2010, 02:15 PM
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Well take the converter off. I think your just a lil paranoid right now! But its ok

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post #3 of 11 (permalink) Old 03-03-2010, 02:24 PM
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the "sweet" smell as i describe it is from a combination of the cat, and the super clean burn that the Cummins is able to achieve with the High pressure common rail injection system, i prefer that smell over what my duramax smelled like with the Cat in place..

FWIW my brothers LMM smells like nothing, you put your face squarely in front of the exhaust tip and you get nothing but warm air (i know theres CO2 and NOX in there) smells like nothing

Calm down Erik your freakin out man, well unless you put mothballs in the fuel tank...

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post #4 of 11 (permalink) Old 03-03-2010, 05:29 PM Thread Starter
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Im not freakin out. lol. im just wondering if the cat is making it smell that way.

if i get straight exhaust it will probably not smell the way it does now, right?

Erik

My Vehicles

2004.5 Dodge Ram 2500 4X4 QCLB, NV5600, 177K miles, 10000k HIDS, FASS 150, EDGE juice w/ attitude "HOT UNLOCK", VALAIR 650HP DD thanks to DAN'S DIESEL PERFORMANCE!

1988 Monte Carlo SS, 305 SBC, true dual 2.25" t-304 Stainless exhaust, T-Tops, custom red pryzmatique paint, 2 12" Alpine Type-R Subwoofers, 500 Watt Alpine amp, Alpine speakers inside, complete 2 year ground up restoration, 22K miles on rebuild
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post #5 of 11 (permalink) Old 03-03-2010, 11:38 PM
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Correct, it will smell like a regular old diesel, and if you tune it it will smell like a smokey old big rig :Happymugs

Aaron the Crazy Canuck
2006 Chevrolet Silverado LT 2500: LBZ - Allison, Greystone Metallic, 4x4,PPE airbox mod, missing muffler/cat, EFILive tuned by Nick at duramaxtuner, MA tie-rod sleeves and Grade C headgaskets
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1986 Mercury Capri - 5.0L, AOD, shorty headers, acell ignition, Holly street dominator intake, Holly 625 vacuum secondaries carb, Dual glass packs "my little yellow terror"

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post #6 of 11 (permalink) Old 03-03-2010, 11:40 PM
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don`t worry , mine smell like /"$%?/ on cold start. Just smell it once your 5.9 is warmed up , it smells better. My 07.5 6.7 did smell the exact samething on cold start once I did the EGR and DPF delete.

Nice truck by the way! looks great! I just love long beds.

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post #7 of 11 (permalink) Old 03-04-2010, 03:17 AM Thread Starter
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Quote:
Originally Posted by cocotte View Post
don`t worry , mine smell like /"$%?/ on cold start. Just smell it once your 5.9 is warmed up , it smells better. My 07.5 6.7 did smell the exact samething on cold start once I did the EGR and DPF delete.

Nice truck by the way! looks great! I just love long beds.
thank you sir.

Quote:
Originally Posted by BriteWhiteRam View Post
Correct, it will smell like a regular old diesel, and if you tune it it will smell like a smokey old big rig :Happymugs
ya ya ya!! thats what i want . the sweet smeellllllll. not the moth bally smell.

Erik

My Vehicles

2004.5 Dodge Ram 2500 4X4 QCLB, NV5600, 177K miles, 10000k HIDS, FASS 150, EDGE juice w/ attitude "HOT UNLOCK", VALAIR 650HP DD thanks to DAN'S DIESEL PERFORMANCE!

1988 Monte Carlo SS, 305 SBC, true dual 2.25" t-304 Stainless exhaust, T-Tops, custom red pryzmatique paint, 2 12" Alpine Type-R Subwoofers, 500 Watt Alpine amp, Alpine speakers inside, complete 2 year ground up restoration, 22K miles on rebuild
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post #8 of 11 (permalink) Old 03-07-2010, 05:04 AM
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My 6.7 will burn your nose when it idles from the all the filtering when cold or in regen. Why didn't I buy a 5.9L

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post #9 of 11 (permalink) Old 03-07-2010, 12:46 PM
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you remind me a lot of things there.....my kids and wife were almost sick when my 6.7 was going into regen in town!!! The smell of burning fuel inside the cab was horrible while waiting at a traffic light

2006 3500 mega cab SLT auto.
Diamond eye turbo back, S&B cold air intake,62mm turbo, billet tranny, smartyJR....

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post #10 of 11 (permalink) Old 03-07-2010, 07:12 PM
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Quote:
Originally Posted by cocotte View Post
you remind me a lot of things there.....my kids and wife were almost sick when my 6.7 was going into regen in town!!! The smell of burning fuel inside the cab was horrible while waiting at a traffic light
Its bout it not smell like that any more!

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