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I have a 2009 MaxxForce on my medium duty truck. I have two
I have a 2009 MaxxForce on my medium duty truck. I have two trucks with the same problem, excessive white smoke, fuel smell and I have already checked the egr coolers (no links), egr system and censor… read more
Andy
Andy
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Vocational, Technical or Trade School
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We have a 2005 international 4900 series with a Cummins ISX
We have a 2005 international 4900 series with a Cummins ISX engine. The engine smokes extreme and there is pressure in the return fuel system. Injectors 4, 5, and 6 are clearly showing signs of damage… read more
Andy
Andy
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Vocational, Technical or Trade School
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Dr. Cummins, I have a CM871 that is smoking a lot of smoke
Dr. Cummins,I have a CM871 that is smoking a lot of smoke at idle. ESN 79242827. It smells like unburned fuel. I did a cylider kill test and they all seem to be pulling there weight. Where should I st… read more
cumminsdr
cumminsdr
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Purchased a 2013 International Terrastarr auction. My
Purchased a 2013 International Terrastarr auction. My brother-in-law pick it up for me in Missouri & I'm flying to pick it up & drive it to Arizona. My brother-in-law tells me it has black smoke comin… read more
Jeremy
Jeremy
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Associate Degree
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2006 international vt365. Has a miss on cylinders 2 and 7. Replaced injectors and injector to idm wiring. Both cylinders have 300 psi compression. Truck has new head gaskets as well.… read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
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Working on a 3406B CAT today. ESN is 7XC12055. Customer
Working on a 3406B CAT today. ESN is 7XC12055. Customer concern is excessive smoke and missing. With the temp gun found #1 & #2 holes cold. Cracked the fuel lines off of the pump with no change. Pulle… read more
Cat Man
Cat Man
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We have 1989 western star with l10 400 hp Cummins motor in
we have 1989 western star with l10 400 hp Cummins motor in it. We did an inframe to the motor, we sent cyl head out for rebuild, head was cracked, after 5 attempts the machine shop found a good core t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I am working on series 60 that has a misfire. They had
I am working on series 60 that has a misfire. They had replaced all injectors, but didn't calibrate or run overhead. I calibrated injectors and ran the overhead and still had miss. Ran cylinder cut ou… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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3208 cat, I tried the seq to adj valves and tdc1 had 1 & 2
I tried the seq to adj valves and tdc1 had 1 & 2 closed but 4 & 5 were not. … read more
Cat Man
Cat Man
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I just purchased a 2012 peterbilt 388 6 wks ago with a 455hp
i just purchased a 2012 peterbilt 388 6 wks ago with a 455hp paccar engine with 3.70 diffs and a 13spd, i'v tried running it at 60mph 62mph and at 64mph and it run's between 4.70 and the best i got wi… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a n14 lost power, changed fuel filter and still slugash
I have a n14 lost power, changed fuel filter and still slugash at low rpms my fuel milage went south checked turbo spins free smokes at mid range. Tried to cut out injectors and you could here diff on… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
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Hello I am in a mad rush, I am brainstorming before I get
Hello I am in a mad rush, I am brainstorming before I get to the location of the equipment that is having problems. I have a Detroit silver 92 that is blowing white smoke and losing power. Where do I … read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
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Hello, question on my 2002 KW T2000 N14, Ive notice when idling
Hello, question on my 2002 KW T2000 N14, I've notice when idling some smoke coming out of exhaust pipe but you can see it or I can see it at night when Truck is under spot light nothing during the day… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
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I have an 2005 475 isx. it is not firing on the rear bank of
I have an 2005 475 isx. it is not firing on the rear bank of injectors. heavy white smoke, and after running it there is diesal fuel oozing out of the bend in the exhaust dripping on fuel tanks. local… read more
cumminsdr
cumminsdr
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2003 international started clacking sounds like a fuel knock
2003 international started clacking sounds like a fuel knock and smokes smells like raw fuel in smoke… read more
Cat Man
Cat Man
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We have a cummins n14 in a Freightliner. The original problem
We have a cummins n14 in a Freightliner. The original problem was it was missing and popping through the exhaust. We have ran the over head and set the valves. In the cummins computer there are no cod… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
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I have a 2000 International 9100 w/ an N14 cummins. Miss in
I have a 2000 International 9100 w/ an N14 cummins. Miss in the engine but no codes. Pulled off each injector plug and found #5 doing nothing. I checked ground and pulse positive signal at the pigtail… read more
FIX-IT
FIX-IT
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Vocational, Technical or Trade Scho
829 satisfied customers
we have a strong diesel fuel smell inside our school bus from
we have a strong diesel fuel smell inside our school bus from a C7 engine. no fuel leaks. the antifreeze and oil were analyzed and came back good . I replaced all the O rings on the injectors but ther… read more
cumminsdr
cumminsdr
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High School or GED
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Meet the Experts:

Daniel Wilson

Daniel Wilson

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

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All types of Cummins applications

Curtis B.

Curtis B.

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Technician turned service manager on multiple lines of trucks and engines, used in industry.

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dieseldan55

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Road Service mechanic for Volvo Construction.

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