Medium and Heavy Trucks

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I talked to you yesterday slow accelerating and black smoke
I talked to you yesterday slow accelerating and black smoke on a2010 Pete with a ISX 425. Found a fuel solenoid leaking badly. Repaired it. Pulled air cooler out it had two holes and full of oil Repai… read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
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I have a dt360 in a 4700 IH, unit will blow black smoke out
I have a dt360 in a 4700 IH, unit will blow black smoke out the exhaust when you step on it from a stop sign. We replaced the turbo due to oil going into the intake side, removed and test all injector… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
It won't start. 2010 navistar. As, I have the code 033
As, I have the code###-##-#### I replaced the fuel filters … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
07 cummins isx in an international 9200i black smoke and
07 cummins isx in an international 9200i black smoke and soot is coming out of exaust could it be the she valve? Truck has the power … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
Loss of power while driving the interstate and idling at red
Hey There; Loss of power while driving the interstate and idling at red lights. Truck restarts immediately. Dies agan within seconds to 5 minutes. We found codes on the odometer reading: … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 05 kw with a cummins ISM it generally runs fine
I have a 05 kw with a cummins ISM it generally runs fine until you start going up hill under a load then it bogs down real bad and blows heavy black smoke then it clears up and takes off regaining ful… read more
cumminsdr
cumminsdr
Mechanic
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I just bought a 2011 386 Pete with 485 mx engine it has a
I just bought a 2011 386 Pete with 485 mx engine it has a extremely slow response an pick up on turbo an fuel mileage sucks. How or what can be done to correct it? I might just be used to my other tru… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
33,237 satisfied customers
I have a 2011 Pete 386 with a 2010 isx15 425st. Serviced
I have a 2011 Pete 386 with a 2010 isx15 425st. Serviced engine oil,fuel filters etc. now I have a low rail pressure code with check engine light on. Went to the shop,diagnosed problem......rail press… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Do you know a lot about a Kubota l4350? L4350... don't know
I am now . . . mechanic gave up! Tractor starts up, but particularly up an incline, even a shallow one, it misses, runs rough, loses RPM, then wavers RPM up and down, but without much power, and eventually stalls out. Replaced fuel pump and lines forward of glass filter. But same symptoms . . . Now, after starting up with filter glass full of fuel, the glass drains in about 20 seconds . .. more fuel drawn off than resupplied . . . and then stalls. Re-bleed line, fill glass . . . does it again. What next? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
I have a 1996 semi electronic Mack Truck. One of the heads
I have a 1996 semi electronic Mack Truck. One of the heads cracked. I replaced the head. It had an excessive amount of black smoke when you were pulling. I found a clamp loose on the air intake and ti… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
Loss of power - Cummins 5.9 late model high-output engine.
Loss of power - Cummins 5.9 late model high-output engine. Installed new in-tank fuelpump, changed fuel filter, air filter, checked for leaks in boost hoses, turbo turns freely, still has no power. Sm… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 2008 Peterbilt 386 with a Cummins ISX eng#
I have a 2008 Peterbilt 386 with a Cummins ISX eng# ***** Truck is throwing heavy black smoke and no power. Just replaced the turbo and actuator. No egr codes, also removed the egr and cleaned it and … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
1994 cummins n-14 in freightliner was getting close to 7 miles
1994 cummins n-14 in freightliner was getting close to 7 miles per gallon then it was hard starting takes about 10 seconds to turn over but okay when running no white or black smoke put orings in inje… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
got a 6v92 Detroit in a bus. low power & smoke black & gray.
got a 6v92 Detroit in a bus. low power & smoke black & gray. found 2 pistons with broken rings. replaced 2 sets rings 1 liner 6 inj. still low power & smoke. set inj with 1.470 pin. what can I do next… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
I have a 93 International Eagle with a n14 cummings. The truck
I have a 93 International Eagle with a n14 cummings. The truck shut off after running it about 6 hours. I noticed the filter looked like it needed to be replaced and it was low on fuel so I added fuel… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
My cat 3406B in a 94 kenworth . Serial no 3zj. Its developed
My cat 3406B in a 94 kenworth . Serial no 3zj. It's developed a miss when you first accelerate then the miss clears up. Also low on pulling power. What's your thoughts… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Hi, my name isXXXXX own Freightliner Century 2004 Detroit
Hi, my name isXXXXX own Freightliner Century 2004 Detroit 60 engine last 6 vin M12223. Have a loss of power issue with my truck . And this killing me. When I driving without trailer everything is fine… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 2007 peterbuilt 386 with a Cummins ISX. My fuel milage
I have a 2007 peterbuilt 386 with a Cummins ISX. My fuel milage has droped from six mpg to four mpg. I had Cummins check the engine and they found three bad injector's and R&R same. I have R&R fuel & … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,965 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

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All types of Cummins applications

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Chris (aka-Moose)

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16 years of experience

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dieseldan55

Contractor

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Road Service mechanic for Volvo Construction.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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