Black Smoke Problem - Competition Diesel.Com

TexasHauler · 10-06-2007, 05:04 PM

Hello Guys- Got a problem with my Dmax smoking black when going down the road. Any hill or if you get into the pedal you get heavy black smoke. Running down the highway you get a lesser amount of smoke.
I have an LB7 w/ EGR.
It's been @ the dealer for almost a week now and this is what they have done/ruled out:

-Injectors are fine.
-EGR is fine.
-Vacuum pump was found to be bad, replaced, no change.
-Turbo is fine.
-I put in new air and fuel filters prior to taking to dealer.
-MAF is not putting out codes, I advised dealer maybe they could check it anyway, this was friday right b4 closing, will probably check it monday. Would a MAF that was bad not put out codes?

I have NO drivability issues. Starts fine, idles fine, runs fine, no loss of power, if it weren't for the smoke you wouldn't know anything was wrong.
I am totally perplexed with this thing and so is the dealer. Anyone have any suggestions?
Thanks in advance, Steve

*TopFueler* · 10-06-2007, 05:55 PM

Put some fuel additive in it. Stanadyne would be a good choice. I have seen some smoking issues caused by ULSDF and the additive fixed the last few. Thanks

TexasHauler · 10-06-2007, 06:48 PM

Quote:

Originally Posted by TopFueler

Put some fuel additive in it. Stanadyne would be a good choice. I have seen some smoking issues caused by ULSDF and the additive fixed the last few. Thanks

Yup, forgot to mention that, it was the first thing we did. Plus I run Howe's additive in every tank.
Steve

kmkdiesel · 10-06-2007, 07:10 PM

Maf sensor codes will more than likely not set off the check engine light but it will throw codes. You wont be able to tell unless you hook up a scanner.

TexasHauler · 10-06-2007, 08:03 PM

Yeah, it's been scanned and only 404 came up, which was addressed with the new vacuum pump. There was also a 380 code for a glow plug which seems to always be there.
Steve

joefarmer · 10-07-2007, 12:12 PM

What did the balance rates read on the injectors at idle?

TexasHauler · 10-07-2007, 12:48 PM

Not sure, they just told me they were ok.

JOHNBOY · 10-07-2007, 01:05 PM

It could very well be your MAF sensor. Are you running a oiled air filter like the K&N? If os there could be a resuide of oil on the MAF causing it to read incorrectly. You can try cleaning it with electrical contact spray.

Scooter's Roofing · 10-07-2007, 01:57 PM

I didn't read where you checked for boost leaks

Pangela · 10-07-2007, 02:02 PM

Black Smoke and Problem. Is that an oxymoron in the diesel world?

I thought that was our main goal

Hope you get it all figured out.

DangrousDuramax · 10-07-2007, 02:57 PM

Quote:

Originally Posted by TexasHauler

Not sure, they just told me they were ok.

I've heard that one before. Seems that a lot of the tech's dont know to check the balance rates with the truck at idle and in gear. Just sitting at idle they can read fine but when you put it in gear they'll be all over the place. Ask they to show you what the balance rates are with the truck in gear. They are not supposed to be more than +- 3 from each other and that's the extreme on the spec. The #8 piston is also a noted point of interest on the DMax. Under heavy loads or lots of fueling the rod will start to shrink. Have them run a compression test.

kmkdiesel · 10-07-2007, 03:28 PM

Also with the maf sensor rubbing alcohol on a qtip works pretty good for in the house items

crewgirl · 10-08-2007, 11:59 AM

hmmmmmmm, If it were me my black smoke complaints would read something like, "When I'm driving down the highway and I look behind me, I can still faintly see the cars back there, how can I make the smoke thicker?"
If there seems to be nothing wrong, I say take it home and enjoy making people choke.

AKDuramax · 10-08-2007, 12:48 PM

Since when is black smoke a problem?

hope you get it all fingered out

SKYNYRD · 10-08-2007, 01:16 PM

Quote:

Originally Posted by crewgirl

hmmmmmmm, If it were me my black smoke complaints would read something like, "When I'm driving down the highway and I look behind me, I can still faintly see the cars back there, how can I make the smoke thicker?"
If there seems to be nothing wrong, I say take it home and enjoy making people choke.

i'm with you here. "wait i can still see the cars behind me. I NEED MORE FUEL CAPITAN!!!"

DangrousDuramax · 10-08-2007, 01:27 PM

Black smoke is a problem when you didnt add more fuel to make it happen or your turbo has a leak.

SKYNYRD · 10-08-2007, 01:31 PM

question are you running a boost guage?

DangrousDuramax · 10-08-2007, 01:39 PM

Hauler, I just realized that you have a 380 code. Thats your issue right there. You possibly have the glow plug circuit "A" staying on.

10-06-2007, 05:04 PM	#1
TexasHauler Name: TexasHauler Title: Rookie Status: Not Here Join Date: Oct 2007 Member`s Gallery Posts: 6	Black Smoke Problem Hello Guys- Got a problem with my Dmax smoking black when going down the road. Any hill or if you get into the pedal you get heavy black smoke. Running down the highway you get a lesser amount of smoke. I have an LB7 w/ EGR. It's been @ the dealer for almost a week now and this is what they have done/ruled out: -Injectors are fine. -EGR is fine. -Vacuum pump was found to be bad, replaced, no change. -Turbo is fine. -I put in new air and fuel filters prior to taking to dealer. -MAF is not putting out codes, I advised dealer maybe they could check it anyway, this was friday right b4 closing, will probably check it monday. Would a MAF that was bad not put out codes? I have NO drivability issues. Starts fine, idles fine, runs fine, no loss of power, if it weren't for the smoke you wouldn't know anything was wrong. I am totally perplexed with this thing and so is the dealer. Anyone have any suggestions? Thanks in advance, Steve __________________ '04 3500 Dually, LB7 Dmax/Ally 4" MBRP Turbo Back Exhaust Amsoil Dual Bypass Kit Amsoil Fluids Throughout Baldwin 2 micron pre pump fuel filter/water seperator

10-06-2007, 07:10 PM	#4
kmkdiesel Name: kmkdiesel Title: Too Much Time Status: Not Here Join Date: Oct 2007 Location: Idaho Member`s Gallery Posts: 780	Maf sensor codes will more than likely not set off the check engine light but it will throw codes. You wont be able to tell unless you hook up a scanner. Last edited by kmkdiesel; 10-06-2007 at 07:13 PM.

10-06-2007, 08:03 PM	#5
TexasHauler Name: TexasHauler Title: Rookie Status: Not Here Join Date: Oct 2007 Member`s Gallery Posts: 6	Yeah, it's been scanned and only 404 came up, which was addressed with the new vacuum pump. There was also a 380 code for a glow plug which seems to always be there. Steve __________________ '04 3500 Dually, LB7 Dmax/Ally 4" MBRP Turbo Back Exhaust Amsoil Dual Bypass Kit Amsoil Fluids Throughout Baldwin 2 micron pre pump fuel filter/water seperator

10-07-2007, 12:12 PM	#6
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	What did the balance rates read on the injectors at idle? __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

10-07-2007, 12:48 PM	#7
TexasHauler Name: TexasHauler Title: Rookie Status: Not Here Join Date: Oct 2007 Member`s Gallery Posts: 6	Not sure, they just told me they were ok. __________________ '04 3500 Dually, LB7 Dmax/Ally 4" MBRP Turbo Back Exhaust Amsoil Dual Bypass Kit Amsoil Fluids Throughout Baldwin 2 micron pre pump fuel filter/water seperator

10-06-2007, 05:55 PM	#2
TopFueler Name: TopFueler Title: Industrial Injection Status: Not Here Join Date: Oct 2006 Member`s Gallery Posts: 841	Put some fuel additive in it. Stanadyne would be a good choice. I have seen some smoking issues caused by ULSDF and the additive fixed the last few. Thanks

10-07-2007, 01:57 PM	#9
Scooter's Roofing Name: Scooter's Roofing Title: Too Much Time Status: Not Here Join Date: Oct 2006 Member`s Gallery Posts: 17,007	I didn't read where you checked for boost leaks

10-07-2007, 02:02 PM	#10
Pangela Name: Pangela Title: Not here. Status: Not Here Join Date: May 2007 Location: Northern California Member`s Gallery Posts: 3,524	Black Smoke and Problem. Is that an oxymoron in the diesel world? I thought that was our main goal Hope you get it all figured out. __________________ peace out.

10-07-2007, 03:28 PM	#12
kmkdiesel Name: kmkdiesel Title: Too Much Time Status: Not Here Join Date: Oct 2007 Location: Idaho Member`s Gallery Posts: 780	Also with the maf sensor rubbing alcohol on a qtip works pretty good for in the house items

10-08-2007, 12:48 PM	#14
AKDuramax Name: AKDuramax Title: Rice-Burner Burner Status: Not Here Join Date: Aug 2007 Location: Juneau, Alaska Member`s Gallery Posts: 145	Since when is black smoke a problem? hope you get it all fingered out __________________ 2002 Chevy 2500HD Duramax. Ext. cab short bed. AFE stage 2 intake, MBRP 4 inch turbo-back, Edge Juice/Attitude, BD Trans. Ultra wheels, 33x12.5 mud terrains.

10-08-2007, 01:27 PM	#16
DangrousDuramax Name: DangrousDuramax Title: IPUFSMOK Status: Not Here Join Date: Aug 2007 Location: Houston, Tx Member`s Gallery Posts: 60	Black smoke is a problem when you didnt add more fuel to make it happen or your turbo has a leak. __________________ 05 2500HD CC/SB, LT, 2WD, Black AFE Stage II; E/J w/A; 4" MotoBlue straight pipe w/black stainless 5" mitre stack; EGR blocked; Amber DRL's; Rancho RS9000X's w/in-cab controller; Quad train horns; Black 20" KMC Rockstar's & Dune Grapplers US Navy EOD (88-96) - Desert Storm vet Last edited by DangrousDuramax; 10-08-2007 at 01:29 PM.

10-08-2007, 01:31 PM	#17
SKYNYRD Name: SKYNYRD Title: "Drunkard" Status: Not Here Join Date: May 2007 Location: Harpers Ferry, WV Member`s Gallery Posts: 5,666	question are you running a boost guage? __________________ Leonard 79 VW rabbit diesel (ALH & 4motion ) 04.5 rclb 4x4 01 & 03 VW Golf TDI 05 rcsb 2wd (in progress) ROSKOE115: "It's ain't avatar material but I'd hit it!"

10-08-2007, 01:39 PM	#18
DangrousDuramax Name: DangrousDuramax Title: IPUFSMOK Status: Not Here Join Date: Aug 2007 Location: Houston, Tx Member`s Gallery Posts: 60	Hauler, I just realized that you have a 380 code. Thats your issue right there. You possibly have the glow plug circuit "A" staying on. __________________ 05 2500HD CC/SB, LT, 2WD, Black AFE Stage II; E/J w/A; 4" MotoBlue straight pipe w/black stainless 5" mitre stack; EGR blocked; Amber DRL's; Rancho RS9000X's w/in-cab controller; Quad train horns; Black 20" KMC Rockstar's & Dune Grapplers US Navy EOD (88-96) - Desert Storm vet