6.7 turned smoker

vchap · 07-30-2007, 11:26 AM

My 6.7L ran smokeless for 7,500 miles. Now it smokes on medium to heavy accellaration. Took to dealer, updated computer and said it's not supposed to be completely smokeless. For the first 7,500 miles there was zero soot in the tail pipe. Does anyone know if this is normal? I know you die hards like the smoke, I'm just curious about the change, that's all.

cummins06 · 08-13-2007, 05:32 PM

Quote:

Originally Posted by vchap

My 6.7L ran smokeless for 7,500 miles. Now it smokes on medium to heavy accellaration. Took to dealer, updated computer and said it's not supposed to be completely smokeless. For the first 7,500 miles there was zero soot in the tail pipe. Does anyone know if this is normal? I know you die hards like the smoke, I'm just curious about the change, that's all.

Although mine is the 5.9 it does the same. Been told it is not normal, try to change the air filter, fuel filter, and i would also check for diesel in the oil. I check all these all ok but still smokes on stock tuning.

__________________
2006 SWB 4*4 QUAD CAB. AEM BRUTE FORCE! EDGE JUICE WITH ATTITUDE! MBRP, 2" LEVELING KIT:

gone camping · 08-14-2007, 03:38 AM

I've only got 3700 on mine and the tail pipe is clean with no visible smoke.

__________________
2007 6.7L six spd manual 4x4 Reg.cab Dually

jefff929 · 08-14-2007, 06:37 AM

what kind of smoke are you seeing?

I get a light puff at start up on the stock tune of my 5.9
Then there is the puff I can get if i have the Edge EZ plugged in.
Or there is the ball of smoke I get when I set the Smarty on level 9, and have no boost, that folks try to drive around.
BioDiesel changes the color from black to greyish.

I want to keep an eye on this thread, the inlaws have a 6.7 and so far are having no issues.

__________________
sic-and-Fk'n tired of Trolls, CF included.

Good luck all

vchap · 08-14-2007, 08:50 AM

I'm getting a pretty heavy, constant brownish black smoke on heavy acceleration, then it thins out, more brown looking. It seems that if I accelerate again, it's not as heavy. I'm thinking it's just "self cleaning". It's just so different from the beginning. I now have 13k miles. Still runs great and I'm still thrilled.

Dad · 08-14-2007, 09:00 AM

Seems like I've read you have to get the 6.7 out on the highway once in awhile to keep the DPF clean and let it regenerate. Wondering if the change is just reflecting that the DPF is needing to regen?

__________________
High Rider: 98.5 Ram 2500 4x4, 5 Spd, SB 13", A3000 turbo, DDP Stage 3 sticks, studded, 4" TB,, AEM Intake, Gauges, FASS95, S-Chips Tune
Low Rider: '06 Chevy 1/2 Ton, Victory Red, 2/4 Drop, roll pan, sport mirrors, rollin on 20's

JACKHAMMER · 08-22-2007, 08:45 AM

I have 17000 on my truck,it started smoking after 1st oil change.dealer was puting in the wrong oil causing all kinds of problems, now my fuel milage has gone way down.Can't afford 13mpg so it sits in the drive waycollecting dust.

Last edited by JACKHAMMER : 08-22-2007 at 09:21 AM.

derick1679 · 08-28-2007, 07:41 AM

Sounds like a cracked particulate filter. I had the same problem, started throwing smaoke after 5000 miles, took it n and had filter eplaced under warranty. Problem solved with the exception of all the other emission problems and particulate filter problems I have been having. Im thinking lemon law at this point. Steer clear of the 6.7 until they work the kinks out.

Gary Morency · 09-01-2007, 03:16 PM

Its hard to stay away from the 6.7 thats the only deisel Dodge offers, I,d bet my last dollar they will have the problems solved very soon.

Tork · 09-01-2007, 03:34 PM

I agree. Im willing to bet that these problems will not take long to iron themselves out. My personal favorite is how a handful of people have been having expected problems with these engines and are quick to tell people to steer clear of the 6.7 because its trash... at least until cummins shapes up

.

__________________
-Tork
2007 2500 6.7l Cummins 68RFE 4x4
Inferno Red QCSB Lone Star Edition

Gary Morency · 09-03-2007, 09:20 AM

Well IF I do have a problem it wouldn,t be the first the 02 I traded in wasn,t perfect the Ijection pump said good nite at 158,000 km just before the warranty ran out. Wouldn,t that have beat the bank account to hell ? Gary

vchap · 09-04-2007, 08:35 AM

I had my 6.7 out on a 1100 mile trip, pulling about 7500 lbs. It smoked just like it has in the past, so cruising to clean it out didn't work. I just finished a 1200 mile trip with my brothers 5.9, pulling about 4500 lbs. The 6.7 smokes considerably more than the 5.9. I think I'm calling the dealer about the filter mentioned in a previous reply. Thanks.

07-30-2007, 11:26 AM	#1 (permalink)
vchap Newbie Join Date: Mar 2007 Posts: 8 vchap's Truck Pics	6.7 turned smoker My 6.7L ran smokeless for 7,500 miles. Now it smokes on medium to heavy accellaration. Took to dealer, updated computer and said it's not supposed to be completely smokeless. For the first 7,500 miles there was zero soot in the tail pipe. Does anyone know if this is normal? I know you die hards like the smoke, I'm just curious about the change, that's all.

08-14-2007, 08:50 AM	#5 (permalink)
vchap Newbie Join Date: Mar 2007 Posts: 8 vchap's Truck Pics	6.7 Smoker I'm getting a pretty heavy, constant brownish black smoke on heavy acceleration, then it thins out, more brown looking. It seems that if I accelerate again, it's not as heavy. I'm thinking it's just "self cleaning". It's just so different from the beginning. I now have 13k miles. Still runs great and I'm still thrilled.

08-22-2007, 08:45 AM	#7 (permalink)
JACKHAMMER Newbie Join Date: Aug 2007 Location: MISSISSIPPI Posts: 6 JACKHAMMER's Truck Pics	6.7 smoker I have 17000 on my truck,it started smoking after 1st oil change.dealer was puting in the wrong oil causing all kinds of problems, now my fuel milage has gone way down.Can't afford 13mpg so it sits in the drive waycollecting dust. Last edited by JACKHAMMER : 08-22-2007 at 09:21 AM.

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08-14-2007, 03:38 AM	#3 (permalink)
gone camping Newbie Join Date: Jun 2007 Location: St. Clairsville, Ohio Posts: 19 gone camping's Truck Pics	I've only got 3700 on mine and the tail pipe is clean with no visible smoke. __________________ 2007 6.7L six spd manual 4x4 Reg.cab Dually

08-14-2007, 06:37 AM	#4 (permalink)
jefff929 Diesel Freak Join Date: Mar 2006 Posts: 869 jefff929's Truck Pics	what kind of smoke are you seeing? I get a light puff at start up on the stock tune of my 5.9 Then there is the puff I can get if i have the Edge EZ plugged in. Or there is the ball of smoke I get when I set the Smarty on level 9, and have no boost, that folks try to drive around. BioDiesel changes the color from black to greyish. I want to keep an eye on this thread, the inlaws have a 6.7 and so far are having no issues. __________________ sic-and-Fk'n tired of Trolls, CF included. Good luck all

08-14-2007, 09:00 AM	#6 (permalink)
Dad Administrator Join Date: May 2007 Location: Indiana Posts: 3,880 Dad's Truck Pics	Seems like I've read you have to get the 6.7 out on the highway once in awhile to keep the DPF clean and let it regenerate. Wondering if the change is just reflecting that the DPF is needing to regen? __________________ High Rider: 98.5 Ram 2500 4x4, 5 Spd, SB 13", A3000 turbo, DDP Stage 3 sticks, studded, 4" TB,, AEM Intake, Gauges, FASS95, S-Chips Tune Low Rider: '06 Chevy 1/2 Ton, Victory Red, 2/4 Drop, roll pan, sport mirrors, rollin on 20's

08-28-2007, 07:41 AM	#8 (permalink)
derick1679 Newbie Join Date: Aug 2007 Posts: 2 derick1679's Truck Pics	Sounds like a cracked particulate filter. I had the same problem, started throwing smaoke after 5000 miles, took it n and had filter eplaced under warranty. Problem solved with the exception of all the other emission problems and particulate filter problems I have been having. Im thinking lemon law at this point. Steer clear of the 6.7 until they work the kinks out.

09-01-2007, 03:16 PM	#9 (permalink)
Gary Morency Cummins Fan Join Date: Aug 2007 Posts: 61 Gary Morency's Truck Pics	Its hard to stay away from the 6.7 thats the only deisel Dodge offers, I,d bet my last dollar they will have the problems solved very soon.

09-01-2007, 03:34 PM	#10 (permalink)
Tork Newbie Join Date: Aug 2007 Location: Houston,Texas Posts: 7 Tork's Truck Pics	I agree. Im willing to bet that these problems will not take long to iron themselves out. My personal favorite is how a handful of people have been having expected problems with these engines and are quick to tell people to steer clear of the 6.7 because its trash... at least until cummins shapes up . __________________ -Tork 2007 2500 6.7l Cummins 68RFE 4x4 Inferno Red QCSB Lone Star Edition

09-03-2007, 09:20 AM	#11 (permalink)
Gary Morency Cummins Fan Join Date: Aug 2007 Posts: 61 Gary Morency's Truck Pics	Well IF I do have a problem it wouldn,t be the first the 02 I traded in wasn,t perfect the Ijection pump said good nite at 158,000 km just before the warranty ran out. Wouldn,t that have beat the bank account to hell ? Gary

09-04-2007, 08:35 AM	#12 (permalink)
vchap Newbie Join Date: Mar 2007 Posts: 8 vchap's Truck Pics	I had my 6.7 out on a 1100 mile trip, pulling about 7500 lbs. It smoked just like it has in the past, so cruising to clean it out didn't work. I just finished a 1200 mile trip with my brothers 5.9, pulling about 4500 lbs. The 6.7 smokes considerably more than the 5.9. I think I'm calling the dealer about the filter mentioned in a previous reply. Thanks.